Nanotube Solar Cells Improve Efficiency 10 Times

Nanotechnology seems to help a lot in solar cells improvement. Recent research in solar cell technology shows that a film of carbon nanotubes could replace two of the layers normally used in a solar cell, with improved performance and reduced costs. There is a surprising way the researchers found out to give the nanotubes the properties they need: add them some imprefections.

The current solar cells (aka dye-sensitized solar cells) have an oxide transparent film, is applied to glass. That dye-sensitized transparent film conducts electricity. In addition, another separate film made of platinum acts as a catalyst to speed up the chemical reactions that occur in the making of electricity. The oxide films have the disadvantage that they can’t easily be applied to flexible materials: they perform much better on a rigid and heat resistant substrate like glass. This increases the production costs and limits the kinds of products the solar cells can be applied to. The second drawback is that expensive equipment is necessary to create the platinum films.


Jessika Trancik of the Santa Fe Institute, Scott Calabrese Barton of Michigan State University and James Hone of Columbia University decided to use nanotechnology in the making of some new type of solar cells. The carbon nanotubes they use create a single layer that performs the functions of both the oxide and platinum layers. The carbon nanotubes needs to have three properties: to be transparent, to conduct electricity, and to be a catalyst of the electricity-producing reaction.


Regular carbon nanotubes films have these properties, but not enough of each one. The way of improving one, though, sacrifices one of the others. For example, making the film thicker makes it a better catalyst, but then it’s less transparent.


Previous theory had suggested that materials may function better as catalysts when they have tiny defects, impurities, providing spots for chemicals to attach. The researchers then tried exposing the carbon nanotubes to ozone, which roughs them up a bit. Very thin films, they found, became dramatically better catalysts, with more than ten-fold improvement. In fact, the performance of the impurified nanotubes gets close to that of platinum. “That’s remarkable,” Trancik says, “because platinum is considered pretty much the best catalyst there is.”


In order to address the trade-off between transparency and conductivity, the researchers tried another trick on a bottom layer of tubes: they created longer carbon nanotubes. This improved both conductivity and transparency.


The carbon nanotube films can be used in fuel cells and batteries as well.


“This study is an example of using nanostructuring of materials – changing things like defect density and tube length at very small scales – to shift trade-offs between materials properties and get more performance out of a given material,” Trancik says. “Making inexpensive materials behave in advanced ways is critical for achieving low-carbon emissions and low cost energy technologies.”


The impurification of materials is not a new idea: in semiconductors, for example, impurification has been for decades used to create them. Without it, we wouldn’t have laptops, radios, phones, not even electronic hand watches.

Solar powered Macbook Air

Here’s good news to the Macbook Air users!

If you’re still whining about the battery life that your Macbook AIR has, there’s still great news for you. A company called QuickerTek has just announced a green solution. Try their foldable solar power sold right here.


This comes in 3 variants …


1. 18 Watt foldable Solar power - able to fully charge your MBA in 14 hours (cost $500).

2. 27 Watt foldable solar power - able to fully charge your MBA in 8 hours (cost $600).

3. 44 Watt foldable solar power - able to fully charge your MBA in 5 hours (cost $1,000).

Three solar cell options easily unfold from 10.5 inches to various sizes from 30 inches to as large as 60 inches. A very cool Element backpack is included which stores both your macbook and the Solar Cell. This might be the ultimate gift for a college student. Think of being on the campus lawn using the mac without ever running out of battery power.

The Solar Cell is far more than a simple trickle charger (as many solar units are).


Since the MBA is suited for the typical business person who runs from one location to another, there just isn’t enough time to power-up, right? This solution may just well be The answer. Hey, while your having your donuts and coffee out in a Paris restaurant, flaunt the solar panels to charge up your baby.

Is Solar Power Enough?

Solar Supply

Total radiation arriving outside the atmosphere (ie, at all wavelengths) is 1368Watts/m2 (ref: NASA).

Assume (?) that only radiation reaching the ground can be harvested by wind and solar panels; as I understand it winds etc are caused by ground heat conducting into air rather than direct solar heating.

Radiation arriving at ground (refs: squ1.org, Wikipedia, Encyclopedia of Earth) appears to be less than half of this as some is reflected by cloud or absorbed by the atmosphere but it’s not entirely clear. So:

Approx 500W/m2 (after weather) on the flat plane facing the sun
x Total area facing sun = pi * (radius = ~6000km)2 = ~100 million sq km = 1014 m2
-> 5×1016 Watts total solar energy arriving on earth at ground.

Incindence & Night

As the above radiation is spread over the curved surface of the ground, half (ish) of which is in the dark, the ‘average’ radiation received over a day on a square meter of surface is the total surface radiation divided by the total surface. So:

Above total solar energy = 5×1016 Watts
Earth’s surface area (radius = ~6000km) = 500,000,000 km2 = 5×108 km2 = ~5×1014 m2
-> about 100W/surface m2, averaged over a day. (ie about 1/5 of the flat plane incidence above)

Efficiency

Inefficiency in gathering and transporting the energy: solar photoelectric cells are currently between 12-40% (wikipedia), losses over the national grid are a few percent. Assume a total of 50% overall (including transport) for future direct-collection technologies (ie not wind or wave).

-> 50W/m2 collected averaged over a day.
and
-> 2.5×1016 Watts total global harvestable solar energy

Sanity Math Check

If we wanted all the energy harvestable, demand would be 2.5×1016 watts, @ 50W/m2 surface use = 5×1014 m2 = 5×108 km2 = 500,000,000km2 = total surface area. Good.

Current Demand

Current use in rich countries is ~4-5 Tonnes of oil equivelent per person per year (BERR and Economist’s “Pocket World in Figures”). 1 TOE = 42 GJ.

= 200 GJ per person per year
= 200 x109 J / 3 x107 seconds/year (Joules = watts x time)
= ~7000 Watts per rich person
@50W/m2 -> 140 m2 per rich person.

Transition Demand

From a BBC article demand by 2030 (ie not ‘final demand’) will be 15,000 million tons of oil equivelant per year global total

-> 1.5 x1010 toe @ (40GJ/toe = 4 x1010 J/toe)
-> 6 x1020 J/year / 3 x107 seconds/year
-> 2 x 1013 watts total global demand in 2030
@50W/m2 -> 4 x1011 m2 = 4 x105 km2 = 400,000 km2

Naive Predicted Demand

Naively assuming 10 billion people world population using only the current ‘rich country’ scaling (ie ignoring air conditioning, etc in emerging warmer countries):

1010 people
x 7000 Watts = 7 x 1013 watts total global demand
x 140 m2 = 1.4×1012 m2 = 1.4 x106 km2 = 1,400,000 km2

Predicted Demand

This article, from UNDP data, predicts 102 TW demand by 2050:

= 1014 watts total global demand.
@ 50W/m2 -> 2 x1012 m2 = 2 x106 km2 = 2,000,000 km2

Worldwide USA demand

USA energy use is currently around 12kW/person and covers a range of climates. For simplicity, assuming this rises to 14kW within a few decades and that we would like the world to have the same benefit, this doubles the Naive Predicted Demand to 2,800,000 km2

Global Impact

Total earth’s surface = ~5×1014 m2 = 5×108 km2 -> using 0.3% to 0.4% of the earth’s surface

About 30% is land -> 1.5×108 km2 -> 0.5% to 1.3% of the earth’s land.

Sahara desert is about 9 million km2, and has better than average harvest rate per square meter.

Sanity Check

5×1016 Watts total arrives, predicted demand is 1014 watts, so we would want to use 0.2% of all incoming radiation. As the harvesting is only 50% efficient we would need to intercept 0.4% of it. Allowing for angles of incidence/night time we would need to cover 5 times that of the surface, ie about 2% of the surface.

But 2% of the surface is 1013 m2 , and at 50W/m2 = 5x 10 ^14 Watts. So something here is wrong!

UK Coverage Required

Ground radiation is about 100W/m2 during the day time, so over 24 hours is about 50W/m2, with about 50% efficiency this is a harvestable 25W/m2. Population 60 million (6×107), using 7000W/person -> 4×1011W -> ~ 2×1010m2 = 20,000 km2

Surface area is about 250,000 km2 so we’d need to use about 8% of the land (assuming we didn’t use the surrounding sea surface)

Instant Insight: Solar energy turns organic

Cheap and efficient conversion of solar energy into electricity could help combat global warming and the shortage of fossil fuels. However, the high production cost of electricity from silicon-based solar cells has limited the use of the technology. Low cost solar cells with high cell performance are highly desirable and organic solar cells could be the answer. They are easy to make from inexpensive organic materials and, unlike inorganic solar cells, are lightweight, flexible and colourful.

Light absorption by organic solar cells leads to an excitation state known as an exciton or electron-hole pair. The electrons and holes are separated from each other and carried through donor and acceptor molecules to the electrodes, generating a photocurrent. This process of converting light directly into electricity is known as photovoltaics and it must be optimised for organic solar cells to be efficient. Much effort has been devoted to finding suitable donor and acceptor molecules and organising them on an electrode surface at the nanometre scale.

Fullerenes and their derivatives have been widely used as excellent acceptor molecules. More recently, carbon nanotubes (CNTs), which have a similar carbon-based structure, have attracted much attention. In contrast to the spherical shape of fullerenes, CNTs have a one dimensional, wire-like structure, which make them better at forming electron- or hole-transporting highways in the cell. Their large surface area enhances the separation of the electron-hole pair and they show conductivity several times greater than that of conducting polymers. Also, CNTs can act as both electron donors and acceptors depending on the redox properties of the other component in the cell. All of these features make CNTs promising candidates for charge separation and transport in organic solar cells.


A number of scientists have made photoelectrochemical devices or photovoltaic cells with CNT-modified electrodes. They have used a variety of methods, including layer-by-layer deposition and spray-coating, to organise the CNTs with suitable donor or acceptor molecules on electrode surfaces. At present, however, the energy conversion efficiency of CNT-modified electrodes has yet to reach the levels of high performance dye-sensitised solar cells - which use porous, nanocrystalline titanium dioxide electrodes sensitised with ruthenium dyes - or bulk heterojunction solar cells, which use conjugated polymers and functionalised fullerenes.


At present, it is difficult to synthesise pure CNTs with a consistent structure. To improve CNT-based solar cells, scientists may have to purify or sort out the CNTs with the best structure for charge transport. Alternatively, a fascinating approach is to use CNTs as nanoscaffolds for donor or acceptor molecules to construct charge-transporting highways.


The history of CNT-based organic solar cells is less than 10 years old. A great deal of work still has to be done to bring out their full potential for solar energy conversion.

Donated Solar Electric Systems to Aid Habitat for Humanity Recipients

Two families in Glendale, Arizona will begin saving money on their utility bills with solar technology in the coming weeks. Arizona-based American Solar Electric has donated equipment and installation services for two grid-tied solar electric (photovoltaic) systems to Habitat for Humanity Valley of the Sun.

Installed in early June, the systems are comprised of Kaneka thin-film silicon 60-watt panels which offer high performance under high temperatures. Electricity generated by the solar electric systems will be used to offset utility power, thereby reducing the cost of electricity for the new homeowners. Each system will produce over 2,500 kilowatt-hours of electricity per year.


Our contribution today seems small compared to those that donated significant time and money to build the homes, said Sean Seitz, President of American Solar Electric. Were proud to help the new homeowners. Undoubtedly they will recognize a significant contribution to their personal finances for years to come from the energy savings they obtain with their new solar electric systems.


Habitat for Humanity Valley of the Sun is pleased to partner with American Solar, said Roger Schwierjohn, President and CEO of Habitat. This partnership allows Habitat to continue the efforts to be an environmentally friendly builder and make our homes more affordable for families. Because of the generosity of American Solar, Habitat is once again able to progress in our efforts to be a responsible home builder.


A dedication will be held on Saturday, June 21st to celebrate the completion of the homes. Both families are thrilled to be first-time homeowners.


American Solar Electric, Inc. is an Arizona-based design-build firm specializing in photovoltaic (solar electric) power systems for commercial, industrial, and residential applications. Headquartered in Scottsdale, the company is responsible for the installation of more than 5 megawatts of photovoltaic power in Arizona, statewide. American Solar Electrics approach includes system design, permitting, procurement, installation, interconnection, and commissioning. Additional information on the companys products and services is available online at http://www.americanpv.com

Serving metropolitan Phoenix since 1987, Habitat for Humanity Valley of the Sun is a grassroots Christian housing organization whose mission is to eliminate substandard housing by building affordable housing and community partnerships that promote spiritual values and individual responsibility. The Valley of the Sun affiliate is one of the most active of the Habitat affiliates and is responsible for the building of more than 433 new homes. Currently the affiliate is active in South Phoenix, Chandler, Mesa, Glendale, Guadalupe, Tempe and Apache Junction.


Habitat for Humanity International, based in Americus, Georgia, is an ecumenical Christian ministry dedicated to eliminating poverty housing. Habitat International dedicated its 200,000th house last summer and has more than one million people living in Habitat homes they helped build and are buying through no-profit, zero-interest mortgages

Solar Panels Survive Tornado in Colorado

Designed to draw on nature's goodness, certain solar installations are also sturdy enough to withstand some of its most malevolent wrath.


The latest success story comes from around Windsor, Colorado, where last week a Class F3 tornado swept through the northern part of state at speeds of nearly 150 mph. Leaving a three-quarter-mile-wide, 35-mile-long path, the storm ravaged roughly 750 homes and businesses. Only one set of structures remained standing - an array of three 10-killowatt solar systems from Bella Energy. According to Solar Daily, the ground mounted system is not only the state's largest residential solar electric scheme, but also the strongest, surviving "150 mph winds while telephone poles nearby snapped like toothpicks. And no flying panels either! Solar Panels tipped at an angle can catch the wind like a sail, but these remained intact, producing power."


"After the storm I had to say to Bella Energy that they were right. Those panels didn't blow away even in a tornado!" said one homeowner. "Our power from the utility grid is down because the tornado took out the electricity poles, but the solar systems were still in operation."

Evaluating the Cleanliness of Solar Photovoltaics Can Be Complicated

Solar photovoltaic (PV) cells are a popular and often discussed (see, for example Atlantic City Convention Center Plans Largest Solar Roof in U.S., 10% of U.S. Electricity From Solar by 2025, SF Passes Largest City Solar Program in U.S. (Finally), all of which were published within the past week) form of “renewable” or “green” energy, but a casual scratching of the surface knowledge that many people have about the technology reveals some troubling details.

Not only are the panels expensive sources of electricity, but they do not last as long as advertised, they do not provide as much energy as the nameplate capacity implies, they consume significant quantities of energy in their production, installation and transportation, and they often use some very nasty materials in their manufacturing process.


The longevity of a solar panel will vary greatly depending on where it is installed, but any customer should remember that they are buying a product that will inherently need to spend as much time as possible fully exposed to the sun and weather. Though there are no visibly moving parts in a solar PV panel, there are many parts of the system where continuous chemical and physical reactions take place that can eventually lead to system degradation and failure.


Take a good look at panels that have been installed for several years and you will notice discontinuities and shiny areas where the components have been damaged and where the power production is reduced. If you have any panels, might want keep a record of the current production so that you can see this effect - or perhaps you will not want to find out just how fast that long term investment is decaying.


The literature accompanying most solar panels provide customers with numbers related to their peak capacity - what I call “noon on a clear day at the Equator”. That quantity of power is only available when the sun is directly overhead, when the panel is perfectly clean and when there are no clouds shading the cells. The cleaning part is important, any panel owner that wants maximum performance needs to set up a routine for cleaning and clearing the panels of any debris.


Leaves and snow are particular nuisances for rooftop solar panels, but sand and bird droppings can be important in some areas as well. Not that the article was specifically discussing PV panels, but I recently read about the 4,000 gallon water tanker trucks that are part of the maintenance equipment at some desert solar power plants.


Some of the most energy efficient solar panels, in terms of both the energy required to produce the panel and the panel operating efficiency are made of a semiconductor material called CdTe (Cadmium Telluride). Companies that make CdTe cells like to brag about the quality of their products, but they have also recently had to warn their investors that they may not be able to sell their panels in the EU for much longer because of rules about using toxic heavy metals in electronics. What they have not made clear yet is what their long term liability is for the panels that they have already sold. What will happen in 5, 10 or 20 years when the panel output is no longer useful and the materials need disposal? Can they be recycled without releasing the heavy metals? Will their customers be able to return the panels to the original producer? Will they make the effort or simply take the systems to the dump like many consumers do with batteries made of similar materials? (Those are the kinds of questions that my former division officer was talking about.)


There are definitely answers to some of the questions that I have about solar PV, but that does not mean that the issues are fully solved. If you are in the market for solar PV systems, please ask the hard questions and realize that anyone who wants you to buy the systems without good answers is just a salesman who is not much different from any other salesman.

Transparent Electronics Key to Solar Energy Breakthrough

Oregon State University (OSU) and HP have found their first key industrial application in a new type of solar energy system; the developers say it will be four times more cost-efficient than any existing technology.

Transparent transistors and optoelectronics, that were created by researchers, will be used by HP at that its Xtreme Energetics, Inc., of Livermore, Calif., convert sunlight to electricity at twice the efficiency and half the cost of traditional solar panels.

OSU and Xtreme Energetics are working together on this solar technology. HP has funded some of OSU’s research in advanced materials, collaborated with the university to invent transparent transistor technology, and is now making this technology available worldwide through its intellectual property licensing group.

This is one of the first applied uses of transparent electronics and it had not even been envisioned when OSU researchers in recent years developed the world’s first completely transparent integrated circuit from inorganic compounds.

“After the first discoveries with transparent electronics, we were thinking of applications like transparent displays or consumer electronics,” said John Wager, a professor of electrical and computer engineering at OSU.

“But as with any breakthrough, sometimes at first you can’t even see all the possible uses. The potential to create solar energy technology that’s far more efficient and affordable is very exciting.”

The concepts being developed by Xtreme Energetics should be an excellent fit with the capabilities of transparent electronics and integrated circuits.

“The approach being used by Xtreme Energetics is innovative, it involves a very new way to optimize solar energy collection,” Wager said.
“Clearly there will be some challenges we will have to work through, but there do not appear to be any major problems. We’re all optimistic that this system is going to work. And there are still many other potential applications of transparent electronics as well.”

Most advanced solar energy systems use mechanical means to track the sun and optimize the concentration of energy. The use of transparent electronics will facilitate the system developed by Xtreme Energetics which has an optical approach to tracking and focusing the light.

The elimination of mechanical tracking and the use of to a flat design that could be implemented either on rooftop panels or central utilities make it possible to achieve an “ultra-high” level of solar energy efficiency that will be far more cost-competitive with other energy forms.

Two years ago, OSU announced that it had created the world’s first transparent integrated circuit, based on fundamental materials science research in the College of Engineering and the College of Science at the university. The work is also affiliated with the Oregon Nanoscience and Microtechnologies Institute, an Oregon-based collaboration of universities, private industries and the state.

The work proceeded from fundamental development of new compounds, amorphous oxide semiconductors, to applied uses, partially because researchers were quick to cast aside approaches that might have been scientifically interesting but impractical for real use.

“We didn’t even try to work with some metals such as gold and silver which are too expensive or others such as mercury or lead that might have environmental concerns,” Wager said. “We knew all along it would be important to create transparent electronic materials that were stable, environmentally friendly, and able to be manufactured at reasonable costs. We wanted systems that would work, not just be laboratory curiosities.”

Some of the research that could bring transparent integrated circuits into applied use may be accomplished in a period of a few years, compared to decades in the evolution of conventional electronics.

The licensing to HP the exclusive rights to develop and market products based on this technology has also helped the inventions move ahead quickly. HP officials envision applications in the display, printing, medical and automotive industries – not to mention solar energy.

New industries, employment opportunities, and more effective or less costly consumer products are all possible as the era of transparent electronics evolves, OSU researchers say.

OSU scientists also just published the first-ever book in this field, titled “Transparent Electronics,” through Springer Science and Business Media.

Photovoltaic Solar Panels

Solar energy is gets more popular with every leap in electrical rates and few people realize that it is the best investment in energy that you can make. The upfront costs can be large but a solar panel has no moving parts and its components are silicon, glass, aluminum and some copper for wiring.


The average panel is made up of 36 photovoltaic cells and the thickness of the cells depends on their power rating. Each cell is made up of two thin silicone sheets, one with a positive charge and the other with a negative one. Electricity is generated when the sun promotes electron activity between the two wafers resulting in a direct current.


The amount of electricity generated depends on the:

  1. Number of panels: Calculate your electrical needs for how many panels you will require.
  2. Type of silicone crystal: Like anything else there is quality and okay types.
  3. Sun and geographic location: Solar cells do not like shade and only trickle during cloudy days.
  4. Positioning: This has to do with where the panels are place and their positioning in relation to be maximum sun exposure.
  5. Care and Cleaning: Just like a window the glass on then panels needs to be cleaned foe better sun exposure.
  6. Regulation and Storage: Good news. Because of the interest in hybrid cars this technology is getting better and cheaper. Look for a spike in long-lasting batteries for solar energy storage at lower prices.
Fifty years ago many people living in rural areas lived off generators and some used wind power to operated their wells. They were excited as the power poles began getting closer to their location. Sometimes this took years to go 50 miles. Now people can’t wait to be able to “live off the grid.”


Buying photovoltaic solar panels is expensive so if you plan to run your home off this system you should perform a “triage” of sorts on your home. Remember, a toaster takes 1700 watts and that’s 17 solar panels or almost $20,000 for a slice of toast every morning. However, LCD-screen TV’s and computers take up a pittance of power.

New Luminescent Solar Concentrator Technology

Many of you already know that the sheer price of the silicon used for solar cells is one of the reasons solar energy hasn't become more widely used. As such, researchers all over come up with new solar technologies as time goes by. One of those technologies is the luminescent solar concentrator (LSC) which traps the sun's rays and delivers the light onto a cell using a waveguide. Unlike solar trackers which follow the sun's movements across the sky using mirror installations, LSC has no moving parts.


A conventional LSC is usually a plastic sheet painted with a dye and stretched over a long thin solar cell. The process of harnessing solar energy starts when the dye absorbs the sun's light. It then re-emits the light back, but since it's already trapped within the plastic, it just bounces around to be transferred onto the cell. Unfortunately, some of the light that bounce are lost as heat. To address this problem, Michael Currie and Jonathan Mapel of MIT have come up with a new LSC technology which gets rid of the plastic altogether and uses glass instead.


A mixture of dyes and tris(8-hydroxyquinoline) aluminum is sprayed onto the glass. The glass and the dyes prevent light from escaping, while the combination of dyes and tris(8-hydroxyquinoline) aluminum eliminates the heat loss associated with reabsorption of light. To further improve the efficiency of this new LSC, the scientists placed two glass-dye sandwiches, one atop the other. In effect, the lower system absorbs whatever light passes through the first. This method reportedly increased the efficiency of the LSC by ten times more than the conventional solar cells.

Oregon wind farm could be world's largest

The Oregon Energy Facility Siting Council gave its approval of the site of a wind farm billed to be the largest in the world.


The Shepherd's Flat Wind Farm, which would span Gilliam and Morrow counties in north-central Oregon, is proposed to have 303 wind turbines with a peak capacity of 909 megawatts -- instantly doubling the state's current wind-generated capacity of 889 megawatts, making it one of the largest wind farms in the country.


"This is a tremendous day for renewable energy in Oregon," Michael Grainey, director of the Oregon Department of Energy, said in a news release.


The project is being developed by Caithness Shepherds Flat, LLC of Sacramento, Calif., which says Shepherds Flat will be the largest single wind farm in the world.


Currently, the largest operating wind farm in the United States is Horse Hollow in Texas at 736 MW. Texas oil and gas magnate T. Boone Pickens has plans to build a wind farm in Texas by 2014 that would reach 4,000 MW.


The Shepherd's Flat project area is between highways 19 and 74 on privately owned land, about five miles southeast of Arlington. The power output of the facility would enter the Federal Columbia River Transmission System through Bonneville Power Administration's Slatt Substation.


Other renewable energy projects currently under review by the Oregon Department of Energy include the 400 MW Golden Hills Wind Farm in Sherman County and the 143 MW Newberry Geothermal Project in Deschutes County.

Solar Energy Can Help You Save on Your Power Bill

Sen. Harry Reid wants the rest of the country to adopt Nevada's requirement that 20- percent of its power come from renewable energy by the year 2015.


The Nevada Democrat says that even if such a national requirement was pushed back to 2020, it would create at least 185,000 new jobs and save consumers more than $10 billion in lower electricity and natural gas bills.


One of those renewable energy resources is the sun, and we have plenty of it. There are homes in Las Vegas that use it to power their homes using solar energy panels.


Nevada Power says it saves them a ton of money, but why isn't everyone doing it?


Solar panels -- these are on a building here at UNLV but they're also on homes. What you may not know is that Nevada Power will help you pay for solar power.


Steve Rypka's home is no ordinary home. This is an energy efficient home. For example, his skylights have been replaced by solar tubes. They cut down on the amount of sunlight that heats up his house.


"It's the wave of the future," said Rypka.


Outside, Steve's quest for energy efficiency continues with solar panels on his roof. He heard about Nevada Power's solar energy incentives and decided -- why not?


"I like to say this is a nuclear powered house because we have nice wireless technology delivering energy right to the roof from a nuclear resource that's exactly where I like to see it -- 93 million miles away," he said.


Nevada Power offers rebates of up $5 a watt. Steve's solar panels cost roughly $40,000 to put in. But the rebates saved him about $10,000.


There is also a $2,000 federal tax credit for having it done. Not to mention the equity in Steve's home has increased by $30,000 because of it's energy efficiency.


"We're just so excited because we don't have an electric bill. It's $8 a month. And, that's for the life of this house, it will more than pay for itself may times over before it's all said and done," he said.


So why isn't everyone doing it? Nevada Power thinks everyone is little too gun shy about the $40-,000 installation cost. But Steve says his neighbors pool cost that much, and they don't even really use it.


"They have the ongoing costs of maintenance, chemicals, repairs, etc. While the system here runs itself and eliminates my electric bill."


So Steve may be on to something. While price of fossil fuels continues to go up, Steve's monthly electric bill -- is about the cost of a hamburger, fries and large coke.

Solar panels shine on energy saving

Today, KUB's fourth Generation Partners customer - Knoxville physician Preston Smith - showed off 28 solar panels fixed to the roof of his new horse barn. The panels will allow him to not only use less electricity at home but also sell extra power back to the grid.

The program is funded by TVA, which pays 15 cents per kilowatt hour Smith delivers to the grid. His system, the largest in KUB's territory, can produce 7,000 kilowatt hours per year. An average KUB home uses about 12,000 kilowatt hours per year of electricity.

The installation reflects a growing local interest in solar power, said Ed Zubko, who owns Green Earth Services in Knoxville and installed the panels on Smith's barn.

Zubko will begin work on a similar, though smaller, installation in Maryville today, and he said the solar market, non-existent a few years ago, is growing if not yet booming.

"I think unfortunately the interest is there but the tax credits on the residential side are not there," Zubko said. "Really, the opportunities for this type of work are just now coming around in our area."

Solar is expensive. Zubko estimated that Smith's array cost about $50,000 for panels and installation. And Zubko said there are misconceptions that the area does not have enough sun to be a viable energy source.

"We have a very high solar resource," he said, with the area producing an average of five solar hours per day. That's plenty for Smith's 5.8-kilowatt system to produce to capacity, he said.

Federal tax incentives and state grants do exist for businesses, Kubko said, and he hopes to soon begin signing up local commercial customers. In addition to solar panels, he also sells solar thermal units for hot water heating.

All KUB Generation Partners customers have installed solar panels as opposed to wind generation units, which also would qualify for the TVA pay-back program. Others include Mellow Mushroom on Cumberland Avenue and two residential customers.

GE Shows Us The Future Of OLED Lighting

oled lighting

We’ve been following General Electric’s advances in OLED (or Organic Light-Emitting Diode) over the past year — and with good reason. The company is a leader in the quest to push efficiency in lighting applications to the next level and the glimpses we’ve been seeing are an exciting taste of what’s to come.


To kind of bring everyone up to speed on where OLED might make its mark, GE has put together a video laying out the basics of what the technology is and how it will change the way we think about lighting. They also make a point to hammer home that it’s a mercury-free technology — something we’re more than happy to see more of.


As you can see in some of these still from the video, the tech can illuminate an office cube or your bike. In fact, having entire walls in a home light up at the touch of a button is possible. Imagine then if they could take this to the next level and have that wall turn into a massive television screen?

Beijing Olympics: Emergency anti-smog plan announced for 'Greyjing'

Beijing's Olympic organisers are planning a new set of emergency measures to reduce pollution after the draconian steps introduced a week ago failed to halt a grimy haze from smothering the host city.


The air quality has failed to reach national standards for four of the seven days since the city took more than a million cars off the roads and shut down hundreds of factories.


With less than two weeks until the opening ceremony, the organisers are preparing more drastic step to ensure that the "Greyjing" tag does not undermine its promise of a "Green Olympics" and force the postponement of endurance events like the marathon, triathlon and 10km open-water swim.


According to the China Daily, all construction sites and more factories in and around Beijing may be temporarily closed if the air quality deteriorates during the games.


Further traffic restrictions could also be imposed in addition to existing controls that allow vehicles to drive only on alternate days according to whether they have odd or even number plates. The measures have already been expanded to neighbouring Tianjin.


"We will implement an emergency plan 48 hours in advance if the air quality deteriorates during the August 8-24 games," Li Xin, of the Beijing environmental protection bureau, was quoted as saying.


After a few days of clear, blue skies following the traffic controls, air pollution has built up amid heavy humidity and a lack of wind.


According to the Beijing government, the amount of particulate matter in the air has failed to reach the national benchmark of 100mg a cubic metre for the past four days. Today, it rose to 113, more than double the far tougher ideal standard of 50 set by the World Health Organisation.


This does not include ground-level ozone, which is not measured in China even though it can be hazardous to the respiratory system at high levels during humid summer weather.


The data highlights a typically Chinese phenomenon: compared to the past, the situation is much better than before. But set against international standards, the country is still lagging by a distance.


Beijing is proud of the environmental gains made in recent years. Millions of coal-burning homes have been converted to gas, production at the biggest iron company has been cut by 73% and more than 2,000 old buses and 5,000 taxis are being upgraded or replaced with cleaner models. Five new urban railways have been added to the public transportation system.


Environmental groups applauded the measures, but said it was unlikely to be enough to satisfy global expectations.


"Despite the efforts of the government, Beijing air quality probably is still not what the world is expecting from an Olympic city," said Greenpeace campaign director Lo Szeping.


"The athletes will be breathing 150 litres of air per minute ... So for athletes this is a particular concern."


The organisers sought solace from the heavens. A storm front is heading towards Beijing with a 90% chance of rain tomorrow.


"This is a blessing. It could not happen at a better time. Help from mother nature is very welcome," said Jeff Ruffolo, a spokesman for the Beijing Olympic organisers. "We haven't had a good rainstorm for a couple of weeks. We could do with some of that right now."


But the organisers must be careful what they wish for. Scattered thunder showers are forecast to last until at least Wednesday next week. If the rain persists, it could put a damper on the opening ceremony two days later, which will include a spectacular fireworks display.


In a cost-cutting and environmentally-friendly measure, the government scrapped plans to build a roof on the stadium. According to the organisers, there is a 50-50 chance of rain on August 8.

Why Cleantech Investors Love & Back Obama

Presidential hopeful Barack Obama’s green energy platform has gained him fans among that industry’s most powerful players — its investors (see chart below). According to the presidential campaign donation database of the Center for Responsive Politics, the investors backing cleantech companies are backing Obama as well, over six times that of John McCain.

We ran through the donation database the names of over a hundred investors that have led the funding of at least one cleantech company and came up with 25 names that have also contributed money to either the Obama or McCain campaigns. The individual contributions themselves were small (the max is $2,300 for the primary and general election), but the discrepancy was huge — $55,500 to Obama and $8,900 to McCain. (See our chart below the jump). That’s more than 6 to 1 for Obama, and a lot higher than the national split; as of June 30 of this year, Obama had raised $339.22 million and McCain had raised just $145.47 million.


It’s hardly surprising that those pushing next-generation alternative energy projects are placing their bets on Obama. The Illinois senator has proposed doling out $150 billion over 10 years to fund projects in a broad swath of cleantech sectors, including biofuels, plug-in hybrids, clean coal, smart grid and renewable energy. He’s also calling for a reduction of greenhouse gas emissions to 80 percent below 1990 levels by 2050 and plans to introduce a cap-and-trade system to manage carbon emissions. McCain has a less aggressive emissions reduction plan, and has been a big advocate of building out nuclear to provide clean power.


The cleantech investors that donated to Obama said they did so because Obama’s clean energy plans are just that much more aggressive and forward-thinking than those of McCain. Jon Staenberg, a partner with Rustic Canyon Partners who donated $2,300, told us that Obama’s stance on cleantech was “at the center” of his belief in him:


“I believe leadership in cleantech is the tidal wave (bigger than IT was/is) that can propel this country back to a position of world leadership and enable a more peaceful planet. With Gore advising him and his personal commitment to this area, he continues to get my support.”

And Mohr Davidow partner Josh Green, who donated $2,300, said one of his motivations for backing Obama was the candidate’s aggressive energy plan:


It is a plan which transitions us away from fossil fuels far more aggressively than Senator McCain’s plan in terms of time and dollars. It also focuses as much on the long term as the short term. This is critical to give investors assurances that his programs will remain stable over an extended period, and allow large investments to be made in reliance upon such programs.

Paul Holland, a partner with Foundation Capital, attributed his $2,300 donation to dissatisfaction with the policies of the current administration:


Generally speaking, cleantech investors are by definition very interested in the environment, carbon management and energy policy. Many of us are dissatisfied with the current administration’s positions on these topics and for better or worse, Senator McCain is closely identified as being generally supportive of those policies. Senator Obama offers a clean break from the current administration and so I believe that many of us are giving him the benefit of doubt for that reason among many others.

But for some cleantech investors, the progressive energy plan is just a small part of Obama’s overall appeal. Steve Jurvetson, a partner with Draper Fisher Jurvetson, who donated $4,600 said he is simply supportive of what Obama represents. “He ignites the imagination,” Jurvetson told us. “I think I am mainly drawn to him because of his skill at symbolic leadership – to rebuild brand America and the American Dream, and to garner respect on the world stage. And I respect his process of thinking and synthesis of divergent views.”


First Last Investment Firm Obama McCain
Jeff Barnes Clean Pacific Ventures $500
Forest Baskett New Enterprise Associates $2,300
David Blood Generation Investment $2,300
Jack Crawford Velocity Venture Partners
$1,300
Fahri Diner Sigma Partners $2,300
John Fisher DFJ $2,300
Nancy Floyd Nth Power $2,300
Josh Green Mohr Davidow $2,300
Paul Holland Foundation Capital $2,300
Steve Jurvetson DFJ $4,600
Oleg Kaganovich DFJ Frontier $500
Vinod Khosla Khosla Ventures $2,300 $4,600
Justin Label Bessemer Venture Partners $2,300
Jim Matheson Flagship Ventures
$2,000
Chuck McDermott Rockport Capital Partners $2,300
Michael Moritz Sequoia Capital $2,300
Elon Musk Private Investor $2,300
Sunil Paul Spring Ventures $4,600
Nate Redmond Rustic Canyon Partners $1,800
Zeb Rice Angeleno Group $2,100
Scott Sandell New Enterprise Associates $2,300 $1,000
Ted Schlein Kleiner Perkins $4,600
Jon Staenberg Rustic Canyon Partners $2,300
Daniel Weiss Angeleno Group $2,300
Tom Unterman Rustic Canyon Partners $2,300
Total

$55,500 $8,900

Innovative Solar Cell wins R&D 100 Award

EMCORE is the proud producer of inverted metamorphic (IMM) solar cells, which are already used on land and in space. The IMM technology recently made an in-orbit efficiency record of 33%. EMCORE is a reputable and successful semiconductor company. Their solar technology has been on my radar for a while now.


Developed in conjunction with the National Renewable Energy Laboratory (NREL) and the Vehicle Systems Directorate of the US Air Force Research Laboratory (AFRL), the IMM design is comprised of a novel combination of compound semiconductors that enables a superior response to the solar spectrum as compared to conventional multi-junction architecture. Due to its unique design, the IMM cell is approximately one fifteenth the thickness of the conventional multi-junction solar cell and will enable a new class of extremely lightweight, high-efficiency, and flexible solar arrays for space applications.


These cells, and their soon-to-be second generation, are good for more than satellites in space. When used with EMCORE’s concentrated photovoltaic systems, they might just push for efficiencies as high as 45%.


So what’s the big deal? For years silicon panels have held the record in solar cell efficiency. These multi-junction solar panels are right behind them but cost less. They’re also much lighter and thinner, which reduces transportation and installation costs.


The terrestrial market for cheap, high efficiency solar systems, especially systems that can scale up for utilities, is already booming around the globe. EMCORE has been developing affordable, scalable CVP systems since 2004, with their first commercial installation in May of 2008. With years of trial and error already behind them, they’re positioned to become one of the major players in CVP within the next few years. Pairing that technology with their award-winning solar cells could give them an edge in a young but growing solar industry.


Though CVP promises to produce a lot of energy while avoiding notoriously expensive materials, there’s always a catch. CVP works best when pointed directly at the sun, so expensive tracking mechanisms are used to shift the entire solar array throughout the day. There’s also the small matter of heat, which can melt some solar cells if you’re not careful. Nevertheless, EMCORE seems confident that they have overcome these obstacles to bring an economically lucrative product to market.


Their second generation IMM solar cells, promising even higher efficiency, are slated to hit the market by 2010. In the meantime, the first generation is already giving silicon cells a run for their money.

Solar trees get to root of energy crisis

Taking inspiration from nature, designer Ross Lovegrove has brought beauty to an everyday object that few give a passing thought to: the streetlamp.

The energy intensive lamps are quite literally, and figuratively, getting a green makeover and may be sprouting on a street near you soon.


Lovegrove's innovative lighting project, the "Solar Tree," is a solar-powered streetlamp that also serves as a piece of modern art, infusing a bit of nature into the usually gray urban landscape.


He believes that putting complex natural forms in a city can benefit all of society.


The "Solar Tree" has a striking green trunk and ten branches with solar panels that radiate light on the street below.


"The light looks pretty good when it's off. Most of the other lights out there have no life in them when they are off. I've seen more life in an old guy sleeping on a park bench then I have in some of those other streetlamps," Lovegrove told CNN.


The lamps were first planted, to much acclaim, on the Ringstrasse in Vienna in October 2007 in collaboration with MAK, the Museum of Applied Arts.

During their stay in Vienna the lamps were still able to give off light after four days without direct sunlight, making them an effective form of lighting.


"When we were setting up the tree outside it was quite wonderful," Lovegrove said.


Even when we had one stem, it was incredible, it seemed so insignificant but actually it really stood out and it proves this point that modern technology and design can really lift people's spirits, it becomes an eye catcher because it's sort of out of context.


The Solar Tree is just a streetlamp but actually some of the small things which can have a big impact on our life are all open for reinterpretation."


Since their debut in Austria, the trees have been seen budding on some of Europe's most famous streets: Milan's Piazza della Scala, Paris's Champs Elysees and during Frankfurt's Light+Building 2008.


But this success is not enough for Lovegrove; he is already working on the second generation Solar Tree; one that takes even more inspiration from Mother Nature's perfect designs.


Called the "Adaptive Solar Tree," it will be fully automated and have robotic features. This new design is not only modeled after real trees but also sunflowers. Like a bunch of sunflowers, whose heads are trained on the sun all day, the adaptive solar tree follows the sun to optimize energy.


Lovegrove Studios told CNN exclusively about their new project: "The branches will follow the sun, responding and adapting to the architectural environment, escaping the shadows and following the sun to optimize energy income."


When the sun goes down the solar trees will return to their original position to give off a full spectrum of light to the street and pedestrians below.


The new tree will also be able to respond to different weather, for example the branches will come together if the wind is too intense. Lovegrove also hopes to integrate an air purification bubble into the new trees, enabling them to clean the air around them, much like a real tree.


Christina Werner, director of the program in Vienna, said: "Someday soon solar trees could well be the main form of street lighting in Europe."


The award-winning Welsh designer has always had a strong relationship with nature which can be seen, not only in the "Solar Tree," but in many of his other designs.


Lovegrove considers himself a designer and an "evolutionary biologist."


"One of the clues towards our future survival is the concept of bio-mimicry, where we study nature, learn from its intelligence and copy it one way or another."

USA is Now the World’s Largest Generator of Wind Energy

The statistics are in for the first half of 2008 and they show that USA, for the first time, generated more wind energy than Germany. This “milestone” wasn’t expected to be reached until late 2009.

Germany still has more wind turbines than USA and is able to generate 22,000 - 23,000 megawatts of power compared to USA’s capacity of about 18,000 megawatts.


But Randall Swisher, the executive director of the American Wind Energy Association, said that “the difference is that because the winds are so much stronger here in the U.S. we are actually providing more wind-generated electricity than Germany.” He also said that the US “wind energy capacity is growing faster than anyplace else.”


This is great news but USA is still far behind everyone else in terms of green renewable energy, especially wind energy.


For example in Germany wind power accounts for 7% of their total energy. And the even smaller country Denmark gets 20% of its energy from wind power. USA is awfully behind with only 1.2%.


“We need to back away from fossil fuel and embrace renewable energy. The survival of the world depends on it,” said Randall Swisher.


USA has now become the leading country in wind energy production, another example that Al Gore’s major renewable energy challenge for USA is possible.


Both presidential candidates Barack Obama and John McCain have been positive about Al Gore’s challenge.


Barack Obama said that he “strongly agree with Vice President Gore that we cannot drill our way to energy independence, but must fast-track investments in renewable sources of energy like solar power, wind power and advanced biofuels.”


John McCain said that “if the Vice President says it’s doable, I believe it’s doable.”

Solar Subsidies: Is Less More?

Is there a silver lining to America’s here today, gone tomorrow support for clean energy?

Conventional wisdom says one big reason America has lagged places like Europe in solar and wind power is because it’s been stingy with subsidies. The U.S. hasn’t been as generous, and subsidies only last for a year or two at a time.


The U.S. renewable-energy industry says letting the current clean-energy tax credits lapse will cripple the industry and kill hundreds of thousands of jobs. Even foreign clean-tech types like Vestas, the big Danish wind turbine maker, bemoan America’s short-term approach. Al Gore’s call for an “energy revolution” would require big and lasting support for clean energy that isn’t there yet.


But guess what? While Europe’s flirtation with smaller solar-power subsidies is spooking the sector, the impending demise of subsidies for solar power in the U.S. is driving a last-minute stampede. The subsidies’ renewal is still on Congress’ wish list after several failed shots at renewal.


That means a banner year for the solar industry, and bodes well for the future—since the same scenario will probably be repeated next year, after Congress pushes through an eleventh-hour but short-term extension of the tax credits. From Dow Jones’ Clean Tech Investor:


Commercial customers are rushing in with orders to ensure that solar panels get installed before Dec. 31, when the federal investment tax credit for solar is due to expire. This rush is both filling up order books and driving up prices for solar panels.

Granted, that’s just a silver lining to an otherwise dark cloud. SunPower Corp. executives call it “one flavor of good,” noting higher demand and more pricing power for the next few months. Then what? “[T]he expiration of the credit makes it difficult to allocate resources to the U.S. market for the long-term,” says SunPower’s vice president of public policy Julie Blunden. That’s what happened to Japan—when solar subsidies disappeared, so did the industry.


But for the time being, Washington’s arms-length approach to helping clean energy doesn’t seem to be killing the industry. Solar is set for one—or two—banner years. And even without guaranteed subsidies, America just passed Germany as the country that gets the most electricity from wind.


Cow Power Could Provide 3% of U.S. Electricity?

There seems to be a lot more media attention covering “cow power,” than actual viable cow power plants out there. But a team of researchers at the University of Texas at Austin say that biogas made from manure could provide as much as 3 percent of America’s electricity needs — that’s about the same amount of U.S. electricity that comes from renewables, excluding hydro and nuclear.


The researchers published the data in a paper called “Cow Power: The Energy and Emissions Benefits of Converting Manure to Biogas” in the Institute of Physics’ Environmental Research Letters yesterday (hat tip Biopact).


This isn’t simply done by throwing cow patties in the furnace. The paper suggests that if the billion plus tons of manure produced annually in the U.S. by livestock were anaerobically converted into biogas we could burn it in any standard gas power plant. If that biogas were to supplant coal, it could reduce annual greenhouse gas emissions from electricity generation by 4 percent.


Some of that savings comes from the fact that much of the manure currently decomposes aerobically, releasing over 50 million metric tons of noxious green house gases like methane and nitrous oxide.


None of these are small numbers and could provide real income and power in rural areas. The U.S. government has started funding such efforts. The EPA has a whole primer on how to access state and federal resources to fund your biogas digester and offers tips on how to run a manure-to-biogas operation cost competitively.

Merrill Lynch To Finance Raser's 10 MW Geothermal Plant

Raser Technologies, Inc. announced that it has signed a commitment letter with Merrill Lynch for the project financing and tax equity funding for its planned 10 megawatt (MW) Lightning Dock geothermal power plant in New Mexico.

The commitment letter provides for non-recourse debt financing and tax equity capital for Raser’s first commercial geothermal project in New Mexico. The tax equity capital will be provided by Merrill Lynch and by possible additional partners.


The commitment letter provides for up to approximately US $43 million of construction and debt financing and up to approximately US $27 million of tax equity capital. The actual amount of funding to be provided, however, will be determined by the parties and the negotiation of definitive financing documentation.


The plant is designed to generate net 10 MW of electrical power with zero emissions and will use PureCycle geothermal system technology from UTC Power and is expected to be online in the first quarter of 2009.


This is the third financing commitment announced under an agreement signed earlier this year that sets forth general terms relating to the structuring and financing of up to 155 MW of Raser’s geothermal power projects. Merrill Lynch also helped to finance Raser's 10-MW Beaver County project in Utah. RenewableEnergyWorld.com recently reported that that project could begin feeding power into the grid within the next few months.

Fresno Airport Dedicates Solar Installation

Fresno Yosemite International Airport and WorldWater & Solar Technologies Corp.held a dedication ceremony last week in celebration of the opening of the largest solar airport installation to date in the U.S.

According to Frank Smith, CEO of WorldWater & Solar Technologies the 2-megawatt, 9.5-acre, ground-mounted solar system is estimated to save the airport US $13 million dollars over the next 20 years.


Partners in this project include Sharp Solar, Xantrex Technology Inc. and Solar Power Partners (SPP). SPP will operate and manage the system and will oversee the sale of the solar generated power to the airport through a long-term Power Purchase Agreement (PPA). The PPA financing structure has enabled the airport to embrace solar energy without any capital expense. In addition, PG&E, the local electric utility will manage the net-metering connection with the grid.


"The solar system will provide an impressive 40% of the power supply required to run the day to day needs of the airport such as lighting, air conditioning, controls and tower communications," said Russ Widmar, Fresno's aviation director. "In addition, the solar installation has been constructed on land located near our runways that up until now was unusable."

Eco Chic Panels from smith + noble

I like to think of the windows in my home as a gateway out into the world — a way for me to see what’s going on before I step outside. That said, I spend a lot of time looking at them. Through them, really, but I look at them often, too. Like everything else in my home, I want them to look good, particularly since I’m so fond of gazing at the front yard and the little bird who likes to sit in the tree straight ahead.


But finding curtain panels that are both green and stylish isn’t easy. And since I’m not the handiest with a sewing machine, I was happy to find these Eco Chic Panels from smith + noble. They are available in a three lengths: 84″, 96″ or for those of you with super-high ceilings (or who want to give the illusion thereof), 108″. They are also available in five colors: Navy, Wheat, Chocolate, Steel and Green. Not the widest variety, but enough to give you an option that complements your decor.


Why It’s Green:


  • Fabric made of a blend of hemp and recycled materials

Price: $161-186 per panel

Eco Chic Panels by smith + noble

Green Cleaning Products: Seventh Generation Natural Toilet Bowl Cleaner

Most toilet bowl cleaners are made with caustic acids that can burn your skin, and I certainly don’t want my little one’s bums to experience that! Seventh Generation’s Emerald Cypress & Fir Natural Toilet Bowl Cleaner is biodegradable, safe for septic systems, chlorine-free, phosphate-free, dye-free, etc. It comes in a cool shaped bottle allowing you to squirt under the toilet bowl rim. Unlike many other natural cleaners who guard their ingredients in a shroud of secrecy, Seventh Generation fully discloses its ingredients. This toilet bowl cleaner is made from:

Aqua (water), lactic acid (plant-derived demineralizer), polyglucose, coceth-7, coceth-4 and deceth-5 (plant-derived cleaning agents), xanthan gum (natural thickener), essential oils and botanical extracts* (citrus aurantifolia (lime), abies balsamea (balsam fir), calilistris columellaris (emerald cypress). *d-limonene is a naturally occurring component of these ingredients.


When the forest fires hit, the thick smoke forced nature boy to try the inside toilet for his elimination needs. He won’t use the little potty, so the big potty it is. He leans all over it, holds on to the seat with his hands, peers over to look to see if anything is happening causing his head to sometimes touch the toilet, etc. The need for a clean toilet has greatly increased with his toilet learning!


Since I’m talking about toilets, I thought I would share a story about my daughter. I have had the same toilet brush for 18 years. We recently finished a new bathroom in our addition, and I thought I would celebrate by buying a new toilet brush for our new toilet. As I was perusing the toilet brushes at the store, when my daughter said to me, “Mom, you really shouldn’t buy a new toilet brush. You don’t really need it. There is nothing wrong with your old one.” Needless to say, my eco-shopping conscious daughter stopped my toilet brush buying fantasy in its tracks. I’m still using that old brush, just with my new Seventh Generation’s Emerald Cypress & Fir Natural Toilet Bowl Cleaner.


Seventh Generation takes its name from the Great Law of the Iroquois Confederacy, “In our deliberation, we must consider the impact of our decisions on the next seven generations.” I trust this company and have been using their products since I left my parent’s home. Seventh Generation products work, and I feel good about supporting a company that takes corporate responsibility seriously.

Martin Eberhard Illustrates Tesla Roadster's Solar Synergy

Martin Eberhard calls it "Solar Synergy" -- an apt phrase for the benefits derived from having an electrical car and a home that's powered by an extensive solar PV array. Eberhard was a founder of Tesla and he just received his shiny new Founders' Series Roadster. It's an incredible car, don't you think? As you ogle its curves -- it's the embodiment of pure innovation, try to recall what I said recently in the article about the Green Building Aspects of the Plug-in Toyota Prius. In that article, I made the statement that "buildings might just replace gas stations." Actually, I should be more assertive: buildings will replace gas stations. And if you'd like to see a more defined example as to how that will happen, make sure to read about Eberhard's 5.2 kW photovoltaic system and all-electric Tesla Roadster.


On his blog, Eberhard uses back-of-the envelope figures to illustrate the synergistic benefits of home solar power and an electrical car. He estimates the payback of his solar PV system is about 25 years, not counting inflation, present value of money, or potential for home appreciation. In addition, by using energy provided by the solar PV system to power the car, which minimizes the need to pay for expensive gasoline, he puts the payback on his solar PV system at about 9.5 years.


This is all just payback and investment talk, though.


Here's the real benefit to having a solar powered home and an electrical vehicle: he's powering his home and car using energy generated from the sun. For the most part, as far as I can tell, he's not using coal, natural gas, or any of the other fossil fuels to power the home or fuel up his sporty Roadster. Notice the fueling station at home. That's what our future will look like -- it's not that far away.

Tesla Roadster

McCain Calls Electric Vehicles ‘Vital,’ Says He’d Support Federal Tax Credits

After getting a tour of the design room for the GM prototype battery-powered, Chevy Volt, Sen. John McCain laid out his plan to help the auto industry, including a $5,000 tax credit for people buying low-emission vehicles, a $300-million prize for the company that creates the first commercially available battery-powered car and job retraining programs for displaced workers.

“The eyes of the world are now on the Volt and this will be not only be about the jobs or economy of this great and beautiful state,” McCain said. But the Senator also voiced support for individual states to set tailpipe emission regulations - something that was not exactly well-received at the Warren, Michigan GM facility.


McCain called the Volt a “key, integral and vital part of our ability to eliminate our dependence on foreign oil” and said he “would support tax credits for Americans who choose to buy the Volt and other automobiles that put us on the track to energy independence.”


However, McCain will not be receiving any “Man of the Year” plaques in Michigan any time soon. The presumptive Republican Presidential nominee also told the audience of more than 500 GM workers that he would let each state determine its own fuel efficiency standards. A position that is very unpopular with American car manufacturers because they say it could spell their demise.


Faced with high gas prices and a weak economy, GM’s sales fell 16% for the first half of the year, with trucks off 21% and cars down nearly 9%. GM has lost billions of dollars during the last three years.

Natalie Portman Shoes

While we’re on the topic of ethical footwear this week, Natalie Portman has recently designed a line of vegan shoes for Té Casan, and she is having a sale.

In between being a superstar, a main feature in Elle and speaking out for PETA (People for the Ethical Treatment of Animals), she has also found the time to design darling animal-free footwear. Her designs are cute, classic and sophisticated. I dig the Potok and the Pixie (shown here), both on sale.


Natalie has been a vegetarian since age 8, and always noticed the lack of animal-friendly footwear in the luxury designer marketplace. “Té Casan, well-versed in recognizing and developing new talent, collaborated with Portman for her 100% vegan collection.”


While I like her style, and the fact she represents PETA, I wonder if these shoes are truly sustainable. Are they bio-degradable? Or are they recycle-able? Will they soon be made with the Cradle to Cradle Philosophy in mind? These shoes have synthetic soles and materials. Yes, they are animal-friendly, but in the long-view are they really better for the earth upon which all animals depend? Maybe a new environmentally-friendly shoe material will be invented soon for her to source from. For now, Natalie has done her share to protect the planet as one of the best aspects of this footwear line is that 100% of the proceeds go to the Nature Conservancy.



As one of young Hollywood’s most respected actresses, Natalie Portman, Academy Award nominated and Golden Globe winning actress, has many accomplishments to her credit - Harvard graduate, humanitarian and style icon. With her premiere collection for Té Casan, footwear designer can now be added to that list…


Beyond just lending her name to the collection, Portman worked closely with Té Casan throughout the entire development process to maintain consistent quality with an exceptional design aesthetic. Dazzling, playful and elegant, each shoe exudes the star’s own personal style - all with social consciousness. To that end Portman will donate 100% of her proceeds to various non-profit organizations dedicated to environmental preservation and animal rights.

China Begins Car-Rationing in Beijing Leading up to the Olympics

There have been serious concerns about air quality in the Chinese capital of Beijing ever since it was awarded the Olympic Games in 2001. Since then, the Chinese government has spent an estimated $15 billion dollars to address the air pollution problem in Beijing. The cash has been spent on shutting down factories, unleashing cloud seeders to encourage rain, and now, on paying people to not drive their cars.

Beginning today in Beijing, cars with license plates that end in an odd number are banned from the roads every other day, alternating with cars that have even-numbered plates. It is estimated that there are about 3.5 million vehicles on the roads in Beijing and the ban will reduce the numbers of cars on the road by about one million per day. Drivers will be compensated by not having to pay road and vehicle taxes for three months.


Beijing officials claim to have significantly improved air quality, with just over two-thirds of the days last year meeting national health guidelines, up from only 20% a decade earlier. But some question the validity of the data. An article in the Wall St. Journal suggests that pollution standards may have been loosened, air-quality-monitoring stations moved and data possibly manipulated with to show better results.


The Journal reports that:

“According to the state standards, days with a pollution-index reading below 100 on a 500-point scale measuring several types of pollution are considered “blue sky days,” with good air quality. But some analysts say the data show an unusual cluster of days with levels at or just below that crucial number, and very few with levels immediately above it, suggesting days with pollution levels just above the threshold are being marked down. Under normal conditions, air quality would be evenly distributed.”

“At a press conference Thursday, Du Shaozong, spokesman for the Beijing Municipal Environmental Protection Bureau, rejected suggestions that the data had been manipulated. He said the pattern was the result of how testing locations are placed, and the ability of government measures to head off short-term spikes in pollution. Each testing site covers about nine square kilometers, and in some cases, the main source of pollution may be a large factory that is easily targeted.”

Will the plan work? No one really knows for sure, but with the August 8 ceremonies only weeks away, it would have to work quickly. Some are considering wearing masks to filter pollution, an image that might embarrass China’s leaders who are trying to portray Beijing (and China, more broadly) as a clean, modern, and affluent place - a place that is open for business.


The IOC has already indicated that certain events may be rescheduled if they deam the air quality is unsafe. And Australia has recently said its athletes will remain in Hong Kong during the opening ceremony to limit their exposure to polluted air.

The Solar Family

First, the basics: Anything that uses solar energy as a source of power is solar-powered. Simple, right? Well let’s not forget that the sun gives us more than a whole spectrum of light, it also gives us heat. Both are used for a wide variety of applications, not just electricity.

1. Solar Thermal

Solar thermal technologies use heat. Cleantechnica has already introduced solar thermal. The cheapest, easiest, and most financially sound solar investment you can make for a house is to install a solar thermal collector. It collects solar energy to provide warm water or warm air for your house, even in the far north. On a larger scale, mirrors can be used to focus heat from the sun to boil water and turn a turbine. Generating electricity with this method is called Concentrated Solar Power (CSP). Large scale CSP projects are already underway in deserts around the globe, and in some places they are invigorating the economy.

The cool thing about CSP is that it overcomes one of the major problems with renewable energy. It used to be true that solar farms stopped producing energy as soon as the sun went down. No longer. Heat is much easier and cheaper to store than electricity, so you can save it for the hours or days when the sun doesn’t shine. Power towers and molten salt are just two methods of producing solar power whenever we need it.


2. Photovoltaics

Photovoltaics are solar technologies that transform light into electricity. Certain elements and chemicals, called solar cells, can lose electrons when exposed to photons (light). Under the right conditions, these electrons are harnessed as electricity. For a more technical explanation, check out Wikipedia.


3. Silicon

This is the most widely used and recognizable material used to make solar panels. Paired with solar cells, silicon can produce high efficiency solar panels. However, silicon panels tend to be more expensive to make, transport, and install because they’re heavy, rigid, and require plenty of high-quality materials. Thin-film silicon panels attempt to overcome these obstacles. The downside: silicon panels work best on cloudless days when the sun is directly overhead. That’s why silicon panels are often positioned on racks to face the sun. The cost of these racks, and loading the panels on them, often consume 50% of the cost of silicon panel installation.

Another strategy to reduce the cost of silicon panels is to use less of them, but still generate plenty of energy. This is possible by concentrating sunlight onto the panel. More intense light means more energy… if you don’t melt your panel in the process. This technology is called Extreme Concentrated Photovoltaics (XCPV).


4. Thin Film

Thin film solar panels are very thin and flexible; the solar cells can be placed on sheets of plastic or aluminum. They should not be confused with silicon thin-films, which use a different manufacturing method. Thin film solar panels tend to be easier to make, use fewer and cheaper materials, and are easier to transport and install. Some thin films absorb different wavelengths of light, which can make them more practical in cloudy regions. The downside: they’re still less efficient than silicon panels, so they don’t produce as much energy. Their efficiency can sometimes degrade over time, depending on the materials and environment.


5. Solar Dyes

Here is another promising technology that is still being developed. Invented by the Swiss in the 1990s, the idea is to produce solar cells in cheap, easy, attractive dyes that can be painted or sprayed onto almost any surface. The benefit is both cost and application: the dyes are only one tenth of the cost of silicon panels and you can boldly take them where solar has never gone before. Imagine painting your house with solar cells and reaping just enough energy to power your microwave. That is the downside: solar dyes are not yet as efficient as thin film solar, and many dyes only last several years instead of decades.


6. Radical Solar Technologies

Some tech exists that push the definition of “solar power”. For example, algae can be used to produce biodiesel and ethanol. If you fill your car with this fuel, is your car solar powered? What about passive solar technology, which controls how and when sunlight affects buildings? Since the sun is a major engine driving our planet, the possibilities for harnessing its energy are infinite.

Nissan to Keep Batteries Fresh with Solar

Nissan has figured out a way to keep the batteries of its newly manufactured cars fresh until they reach the customer - solar. The automaker announced today it has signed a sales contract with solar product maker ICP Solar Technologies for an automotive solar charger.


Newly minted cars can sit in a parking lot for over a month before being shipped or purchased by a customer. In that time, the battery can get drained. ICP’s charger will sit on the car’s dashboard and provide a trickle charge to keep the new battery topped off and ready for a new customer.


ICP Solar says this will save Nissan millions because the automaker won’t have to swap out the old, but barely used, batteries. The Montreal-based solar maker signed a similar agreement with Volkswagen in 2006 when it debuted its automotive OEM solar charger.


Solar is starting to be an attractive option for some automakers to help keep car’s electrical systems powered. Toyota is considering offering a Prius model with a solar roof. Fisker Automotive’s Karma will also rock a solar roof, which the company says will power the A/C. An entirely solar-powered commercial car is a ways off, but one built by Swiss engineers actually drove through the Bay Area last week, complete with a 6-square-meter solar panel trailer.

Solar panels could harness power of midnight sun

Of the solutions to the “energy cost crisis,” solar power for Alaska homes and businesses may be the best long-term option. Solar power can cut Alaskans’ heat and light bills in half.


Standard renewable energy defines how simply solar power works:
• Solar photovoltaic panels are mounted on your roof, where they collect energy from the sun in the form of direct current electricity.


• The direct current electricity is then converted by an inverter into alternating current electricity for use by your home.


• The alternating current electricity is fed directly into your home, just like it is from your electricity provider. And since the solar energy system works in tandem with your electricity provider, you’ll continue to get electricity from them when you need more than the solar energy system can provide, such as during overcast weather and at night.


Solar power should harness the midnight sun. In other states, homes are tied into the power grid, produce solar power and sell it to the utilities. Would you love to sell power to your electric company? Maybe debit them $3.50 each time for the privilege of paying you?


With solar power, each Alaskan can bring their energy costs down. It’s got to be part of any Alaska energy solution.


Power grids work when homeowners and businesses feed their excess power into the utility. The utility passes that power along to its other clients instead of producing its own. That reduces consumption of expensive oil and gas.


Utilities that bill on a level pay plan give credits to their solar producers during the summer months that balance out the consumers’ increased cost and lower generation in winter. It can drastically reduce annual energy costs.


Hot air furnaces, boilers, water heaters, even refrigeration and irrigation systems run on solar power. By generating electricity and heat, these systems can provide regional self-sufficiency to Alaskans regardless of the community in which we live. Kind of like the state’s power cost equalization program on steroids.


One of the biggest players in solar power is, surprisingly, BP.


“It’s inescapable that solar power will become a mainstream energy source,” BP’s solar expert Tim Burton said.


That’s from one of Alaska’s top producers of oil and soon, natural gas.


Home solar panel systems are guaranteed by manufacturers to operate for 25 years. If solar cuts electricity costs in half for each of those 25 years, it’s quite a bargain. As the price of oil and gas go up, savings only increase.


Other states, such as Colorado, are changing consumers’ energy consumption by providing incentives. Grants provided to homeowners and businesses sufficient to bring down the capital cost of installing solar energy systems can drop our electrical generation costs in half in every region of Alaska. Such grants could solve each Alaskans’ personal energy crisis.


If you have a newer watch or calculator, you’re using solar power today. Solar works cost effectively when states make the investment to offset the capital cost of acquisition and installation.


Installation credits, grants and low-interest loans are not available in Alaska for solar power. The federal government, however, provides a 30 percent investment credit for solar power and allows accelerated depreciation for businesses that install it. It’s time for Alaska to get some skin in the solar game.


The Legislature has a unique opportunity, awash as we are with petrodollars, to help Alaskans change our heating and electricity sources and reduce costs during this special “energy” session. Redirecting oil riches to allow renewable energy from the sun makes incredible sense.


Cash infusions to Alaskans are important to help with short-term high-energy costs.


But let’s also fund utilities to pass through grants for solar power systems that hook up to their grid.


Solar power, wind generation, geothermal must have a place at the table along side oil, gas, coal and hydro-generated energy. They are all part of developing a solid energy solution for Alaska.


The alternatives to hydrocarbons could prove to be the best long-term solutions to Alaskans’ energy cost crisis.

Power plant output from solar, biofuel

You can't have solar energy without the sun, which makes nighttime and very rainy days something of a problem if you want electricity 24/7.

A company that says it has a solution to that conundrum will announce a deal today to sell power to Pacific Gas & Electric.


San Joaquin Solar will sell PG&E 106.8 megawatts of power from a plant near Coalinga in central California that combines solar-thermal technology with biofuels to be able to operate day and night.


On the solar thermal side, it will use solar troughs that reflect sunlight to heat fluid to run a turbine that creates electricity. On the biofuel side, it will burn 250,000 tons a year of agricultural waste, grass clippings and livestock manure to run the turbine.


"It's thinking creatively about a problem," said Andrew Byrnes, a member of the project development team at San Diego-based Spinnaker Energy, a partner in the deal. "We're taking two technologies that are viable and putting them together in an economically feasible manner."


Combined, the electricity produced will be "cost-competitive with conventional generation technologies," Ricardo Abecassis, president of Martifer Renewables Solar, said in a statement. Martifer is a Portuguese conglomerate and parent company of San Joaquin Solar.


The plant is expected to begin operating in 2011, PG&E said. Terms of the deal were not disclosed.


The utility has signed contracts for 2,500 megawatts of power from renewable sources since 2002. It is required by the state to get 20 percent of its power from renewables by 2010.


In related PG&E news, BrightSource Energy, an Oakland company that has said it would provide 900 megawatts of solar-powered electricity to PG&E, will dedicate a pilot project in Israel today. Its solar field, consisting of 1,600 mirrors and a boiler atop a 60-foot-tall tower, is a precursor to plants scheduled to be built in Southern California's Mojave Desert toward the end of the decade.


In California, one megawatt of power provides electricity for 750 homes.

Fresno Home To Country's Largest Solar Airport

Fresno is now home to the largest "solar airport" in the country.


The project to build the "solar airport" began last August, with the installation of about 11,000 solar panels.


The panels are expected to provide about 40% of the airport's electrical needs each year, and the green project is expected to save the airport and taxpayers millions of dollars.


It's a savings that Mayor Alan Autry says is much needed for the City of Fresno, "It'll save us $11 million over the next decade in taxpayers dollars. It eats away at the myth that alternative forms of energy are not viable in sustainability to do what they're marketed to do. "


City leaders say they hope other airports will follow their lead and transition from "fossil fuels" to alternative energy.

Nissan, GM and Ford agree to build hybrid taxis for New York City

It's time to say adios to the classic yellow Ford Crown Vic. In May 2007, New York Mayor Michael Bloomberg announced plans to transform the city's ubiquitous yellow cab fleet from the old school Ford Crown Victorias to all hybrids.

For the past couple of years, a variety of hybrid vehicles have been gradually infiltrating the fleet and generally performing well. Ford Escape hybrids have become a common site on the streets of Manhattan. Under the new rules, starting this October all new cabs coming into the fleet will be required to get 25 mpg in the city with that number jumping to 30 mpg in 2009. That essentially means the end of the Crown Vic.

The city has now reached agreement with Nissan, Ford and GM to supply a steady stream hybrid vehicles for taxi use. Nissan will offer up 200 Altima hybrids every month while Ford and Chevrolet will provide 50 each of its Escape and Malibu hybrids every month. These 300 vehicles per month will ensure that there are sufficient supplies to meet the turnover needs of the fleet over the next several years and replace the entire fleet by 2012.

World's first commercial-scale tidal power system feeds electricity to the National Grid

SeaGen, the world’s first commercial-scale tidal turbine, located in Northern Ireland’s Strangford Lough and developed by British tidal energy company, Marine Current Turbines (MCT), has delivered electricity into the grid for the first time.

The tidal current turbine has briefly generated 150kW of power onto the grid as part of its commissioning work, ahead of it achieving full capacity in a few weeks time. SeaGen’s power is being intentionally constrained to 300kW during the commissioning phase, but once fully operational, it will generate 1.2MW of power, supplying clean and green electricity to the equivalent of 1000 homes.

Martin Wright, Managing Director of Marine Current Turbines said: “This is an important milestone for the company and indeed the development of the marine renewable energy sector as a whole. SeaGen, Marine Current Turbines, tidal power and the UK Government’s push for marine renewables all now have real momentum. The marine environment poses a number of unique technical challenges, not least installing SeaGen in an extremely aggressive tide race, so we are delighted that Marine Current Turbines has delivered yet another world-first in this sector. It’s a major technical break-through. Our engineering team have done a fantastic job.”

Secretary of State for Energy, John Hutton said: "This kind of world first technology and innovation is key to helping the UK reduce its dependency on fossil fuels and secure its future energy supplies. Marine power has the potential to play an important role in helping us meet our challenging targets for a massive increase in the amount of energy generated from renewables.

"My department has supported SeaGen from the start, granting £5.2 million in funds to take it from the drawing board and into the waters of Strangford Lough. This, and our plans to double the financial support for marine technologies, is further evidence of our commitment to making the UK one of the most attractive places to invest in green energy."

SeaGen was installed in Strangford Lough in May of this year and commissioning work has been taking place since then, including the vital grid connection undertaken in partnership with Northern Ireland Electricity.

Martin Wright added: “SeaGen is the world’s first commercial-scale tidal stream generating system by a large margin. It is more than four times as powerful as the world's second most powerful tidal current system, which is our own 300kW SeaFlow, installed off Lynmouth on the north Devon coast more than five years ago.”

Marine Current Turbines expects that the present testing and commissioning phase will be completed by the end of the summer and an official “switch on” will take place. Irish energy company, ESB Independent Energy, is purchasing the power generated by SeaGen for its customers in Northern Ireland and the Irish Republic.

Liam Molloy of ESB Independent Energy said: “We are on course to be the first company in Ireland and Britain to provide customers with electricity powered by tidal energy. This is a very significant breakthrough which underlines ESB Independent Energy’s ongoing commitment to providing our customers with a range of renewable energy options.”

Marine Current Turbines’ next project, announced in February 2008, is a joint initiative with npower renewables to take forward a 10.5MW project using several SeaGen devices off the coast of Anglesey, north Wales. It is hoped the tidal farm will be commissioned around 2011/2012.

The company is also investigating the potential for tidal energy schemes in other parts of the UK, and in North America.

Notes to Editors
1. Marine Current Turbines Ltd (www.marineturbines.com) is based in Bristol, England. The company was established in 2000 and its principal corporate shareholders include BankInvest, ESB International, EDF Energy, Guernsey Electricity and Triodos Bank. With SeaFlow, the word’s first offshore tidal stream device and SeaGen, the world’s only commercial-scale grid-connected tidal stream system, MCT is the “first mover” in the development of tidal turbines and has a significant global technical lead in this field.

2. SeaGen works in principle much like an “underwater windmill” with the rotors driven by the power of the tidal currents rather than the wind. Strangford Lough has a highly energetic tide race and so is recognised as one of the main tidal “hotspots” in UK and Irish waters. Other areas are the waters off Anglesey, the Pentland Firth and the Channel Islands.

3. As a renewable energy company, Marine Current Turbines takes its responsibilities to protect the environment seriously. It has established a £2million programme to closely monitor the environmental impact of SeaGen, involving scientists from the Queen’s University Belfast and from the Sea Mammal Research Unit (SMRU) at St Andrew’s University. The programme includes the presence of a Marine Mammal Observer on SeaGen at all times during the commissioning phase, when SeaGen will only operate during daylight hours, to observe how the Lough’s marine life interacts with the turbine. There is also a sonar system monitoring seal movements, operated by SMRU, which has been partly paid for by the Npower juice fund.

4. The results of the environmental programme and other scientific, maritime and engineering studies will be utilised in MCT’s future tidal projects in the UK and other parts of the world.

5. Northern Ireland Electricity has provided funding of £500,000 for the project as part of NIE Smart. NIE Smart (Sustainable Management of Assets and Renewable Technologies) encourages the development of renewable energy and energy efficient alternatives throughout Northern Ireland.

Green Building Mandates

Governments are beginning to mandate green building for some new construction, and that ought to be a cause for celebration. But because of the way these requirements are made, the possibility of problems arising when a building does not meet a required level of green building could lead to legal difficulties and lawsuits.

A year ago, Greensburg, Kansas was struck by a tornado which destroyed most of the town. In the wake of this disaster, city officials adopted a plan to make the city one of the greenest in the country. All city-owned buildings larger than 4,000 square feet are required to be LEED platinum certified. And while private buildings are not subject to the same regulation, there is strong pressure to encourage them to follow in the same direction and to be built as green as possible.

The plan for Greensburg to go green raises some questions, however. The difficulty arises around the word ‘required.’ While the LEED guidelines outline general principles for green buildings, they cannot anticipate every situation. Sometimes, a few of the credits attempted on a particular building project are denied, and then, the question becomes what penalty is applied for failing to meet the requirement laid out in the law.


Because the LEED process is an audit, performed after the building is constructed, it is possible that a building will not obtain all the credits that are attempted for a particular project. In most cases, this is not damaging to the building’s certification status. Many LEED registered projects attempt more than the bare minimum credits required to meet a particular certification level. But, if a project runs into problems and additional credits are denied, the project may no longer meet the threshold established in a legal requirement.


The U.S. Green Building Council is not a governmental agency. Moreover, LEED is a third-party post-construction evaluation. LEED does not specify methods of constructing a building, nor does it endorse or approve any products. Under LEED, some credits can be assessed and conditionally awarded based on the design of the building. Other credits, however, must be verified during construction, and can be assessed only after the building is completed.


LEED does have a process for appeals, but is not well structured to work with a mandate system. Communities with laws that have more flexibility, such as requiring the attempt, rather than achievement, of a particular level of LEED, will not have as many problems arising over these requirements.


LEED is also not the sole arbiter of what is a green building. There are other building rating systems, though they are seldom referenced in laws that require green buildings. But green buildings can be built without following the particular requirements and checklists of one rating system or another. If the ultimate goal is to build a green building, then a building that misses LEED Platinum by one point is still likely a very green building.

Florida Gives Green Light to Largest Solar Power Plant in U.S.

The Florida Public Service Commission has “unanimously and enthusiastically” approved a plan to build America’s largest commercial solar-power plant in the state. The committee also gave the green light to a further two facilities, due to go on-line in 2009.


Florida Power & Light have selected SunPower to construct the three solar-power plants in the center of the state. The largest, a 75-megawatt plant in Martin County on the East Coast, will be connected to a natural gas plant. Another 25-megawatt plant in DeSoto County will be the largest photovoltaic facility in the country, while a third, 10-megawatt photovoltaic facility is to be housed at the Kennedy Space Center.


Speaking about the project, Howard Wenger, SunPower’s Senior Vice President, Global Business Units said, “These agreements confirm the growing trend in the U.S. to build solar power plants at a scale rivalling those in market-leading countries such as Germany and Spain.”


The Florida decision follows a raft of recent political moves to boost the development of solar and other renewable energy sources in the U.S. Last week, Pennsylvania launched a Bill establishing a $650 million energy fund to support the sector. Earlier in the month, the U.S. Senate introduced the 10 Million Solar Roofs Act of 2008, while the end of June saw House Democrats introduce a national feed-in tariff for renewable energy projects.

Grace Cathedral Gaining Power from Above

A church more often than not needs to draw its inspiration from the heavens, but San Francisco’s Grace Cathedral has taken that stereotype to the next level, as they announced Thursday that they would be partnering with Pacific Gas and Electric to install a new photovoltaic power system.

The project will see PG&E commit $65,000 for the installation, and designed and implemented by SolarCity of Foster City; it is expected to be completed later this year. And it is all thanks to the hard work of Reverend Canon Sally Bingham, the president of California Interfaith Power and Light, an organization founded upon the idea that the religious aspects of the community must respond to global warming as a moral issue.


San Francisco mayor Gavin Newsom said at the announcement this morning that this project would continue to make “San Francisco the greenest city in the country” adding that he commended “PG&E for their vision of implementing renewable energy on a true San Francisco landmark. This project supports the City’s goals of increasing the use of clean, renewable power”.


“We’re grateful to PG&E for its generous contribution to Grace Cathedral’s ongoing environmental efforts,” said the cathedral’s own dean Alan Jones. “This new solar power system will help us conserve valuable resources, and empower us to be a part of the solution to attack greenhouse gases and global warming.”

College Dorms Getting Greener and Greener

Though I’ve never experienced the college dorm setting in my lifetime, I have spent far too much of my time watching TV shows focusing on the college dorm (Gilmore Girls anyone?). So this story has a little bit of a soft spot with me, on top of the fact that it is just really cool environmental awareness and friendliness.

Students at Sarah Lawrence’s Warren Green Hall will this fall be composting together, monitoring their electricity usage and drying their dirty laundry on a clothesline. They’ll be sharing appliances, cooking and shopping together too, to reduce waste and energy, and using the electric light as little as possible.

And on the face of it, the students couldn’t be happier with the idea. “It means a lot to me that the college is thinking about this really seriously,” says Justin Butler, the co-founder of Sustainable SLC (Sarah Lawrence College), which partnered with the school on the green residence house, and only 20 years old. “It’s very different if it’s just students working for this as opposed to it being a joint effort.”


Many colleges have been environmentally friendly for some time now, well ahead of the curve in having communal campus cleanups and recycling efforts, often led by the students. But now the students and their parents are looking to where they will be staying. Mark Cunningham, director of housing and dining at the University of California, San Diego, notes that prospective parents and students are actively asking about sustainability.


Colleges are also beginning to brag about their Leadership in Energy and Environmental Design (LEED) certificates, awarded by the US Green Building Council. So far there are a total of 236 LEED-certified buildings on college campuses across the country, and another 1,547 in the process of being registered.


So though I may never get the chance to live in a college dorm, I do applaud what the American colleges are doing in what is yet another group looking to a sustainable future.

Al Gore Speech about Carbon Neutral in 10 years

Ladies and gentlemen:

There are times in the history of our nation when our very way of life depends upon dispelling illusions and awakening to the challenge of a present danger. In such moments, we are called upon to move quickly and boldly to shake off complacency, throw aside old habits and rise, clear-eyed and alert, to the necessity of big changes. Those who, for whatever reason, refuse to do their part must either be persuaded to join the effort or asked to step aside. This is such a moment. The survival of the United States of America as we know it is at risk. And even more – if more should be required – the future of human civilization is at stake.


I don’t remember a time in our country when so many things seemed to be going so wrong simultaneously. Our economy is in terrible shape and getting worse, gasoline prices are increasing dramatically, and so are electricity rates. Jobs are being outsourced. Home mortgages are in trouble. Banks, automobile companies and other institutions we depend upon are under growing pressure. Distinguished senior business leaders are telling us that this is just the beginning unless we find the courage to make some major changes quickly.


The climate crisis, in particular, is getting a lot worse – much more quickly than predicted. Scientists with access to data from Navy submarines traversing underneath the North polar ice cap have warned that there is now a 75 percent chance that within five years the entire ice cap will completely disappear during the summer months. This will further increase the melting pressure on Greenland. According to experts, the Jakobshavn glacier, one of Greenland’s largest, is moving at a faster rate than ever before, losing 20 million tons of ice every day, equivalent to the amount of water used every year by the residents of New York City.


Two major studies from military intelligence experts have warned our leaders about the dangerous national security implications of the climate crisis, including the possibility of hundreds of millions of climate refugees destabilizing nations around the world.


Just two days ago, 27 senior statesmen and retired military leaders warned of the national security threat from an “energy tsunami” that would be triggered by a loss of our access to foreign oil. Meanwhile, the war in Iraq continues, and now the war in Afghanistan appears to be getting worse.


And by the way, our weather sure is getting strange, isn’t it? There seem to be more tornadoes than in living memory, longer droughts, bigger downpours and record floods. Unprecedented fires are burning in California and elsewhere in the American West. Higher temperatures lead to drier vegetation that makes kindling for mega-fires of the kind that have been raging in Canada, Greece, Russia, China, South America, Australia and Africa. Scientists in the Department of Geophysics and Planetary Science at Tel Aviv University tell us that for every one degree increase in temperature, lightning strikes will go up another 10 percent. And it is lightning, after all, that is principally responsible for igniting the conflagration in California today.


Like a lot of people, it seems to me that all these problems are bigger than any of the solutions that have thus far been proposed for them, and that’s been worrying me.


I’m convinced that one reason we’ve seemed paralyzed in the face of these crises is our tendency to offer old solutions to each crisis separately – without taking the others into account. And these outdated proposals have not only been ineffective – they almost always make the other crises even worse.


Yet when we look at all three of these seemingly intractable challenges at the same time, we can see the common thread running through them, deeply ironic in its simplicity: our dangerous over-reliance on carbon-based fuels is at the core of all three of these challenges – the economic, environmental and national security crises.


We’re borrowing money from China to buy oil from the Persian Gulf to burn it in ways that destroy the planet. Every bit of that’s got to change.


But if we grab hold of that common thread and pull it hard, all of these complex problems begin to unravel and we will find that we’re holding the answer to all of them right in our hand.


The answer is to end our reliance on carbon-based fuels.


In my search for genuinely effective answers to the climate crisis, I have held a series of “solutions summits” with engineers, scientists, and CEOs. In those discussions, one thing has become abundantly clear: when you connect the dots, it turns out that the real solutions to the climate crisis are the very same measures needed to renew our economy and escape the trap of ever-rising energy prices. Moreover, they are also the very same solutions we need to guarantee our national security without having to go to war in the Persian Gulf.


What if we could use fuels that are not expensive, don't cause pollution and are abundantly available right here at home?


We have such fuels. Scientists have confirmed that enough solar energy falls on the surface of the earth every 40 minutes to meet 100 percent of the entire world’s energy needs for a full year. Tapping just a small portion of this solar energy could provide all of the electricity America uses.


And enough wind power blows through the Midwest corridor every day to also meet 100 percent of US electricity demand. Geothermal energy, similarly, is capable of providing enormous supplies of electricity for America.


The quickest, cheapest and best way to start using all this renewable energy is in the production of electricity. In fact, we can start right now using solar power, wind power and geothermal power to make electricity for our homes and businesses.


But to make this exciting potential a reality, and truly solve our nation’s problems, we need a new start.


That’s why I’m proposing today a strategic initiative designed to free us from the crises that are holding us down and to regain control of our own destiny. It’s not the only thing we need to do. But this strategic challenge is the lynchpin of a bold new strategy needed to re-power America.


Today I challenge our nation to commit to producing 100 percent of our electricity from renewable energy and truly clean carbon-free sources within 10 years.


This goal is achievable, affordable and transformative. It represents a challenge to all Americans – in every walk of life: to our political leaders, entrepreneurs, innovators, engineers, and to every citizen.


A few years ago, it would not have been possible to issue such a challenge. But here’s what’s changed: the sharp cost reductions now beginning to take place in solar, wind, and geothermal power – coupled with the recent dramatic price increases for oil and coal – have radically changed the economics of energy.


When I first went to Congress 32 years ago, I listened to experts testify that if oil ever got to $35 a barrel, then renewable sources of energy would become competitive. Well, today, the price of oil is over $135 per barrel. And sure enough, billions of dollars of new investment are flowing into the development of concentrated solar thermal, photovoltaics, windmills, geothermal plants, and a variety of ingenious new ways to improve our efficiency and conserve presently wasted energy.


And as the demand for renewable energy grows, the costs will continue to fall. Let me give you one revealing example: the price of the specialized silicon used to make solar cells was recently as high as $300 per kilogram. But the newest contracts have prices as low as $50 a kilogram.


You know, the same thing happened with computer chips – also made out of silicon. The price paid for the same performance came down by 50 percent every 18 months – year after year, and that’s what’s happened for 40 years in a row.


To those who argue that we do not yet have the technology to accomplish these results with renewable energy: I ask them to come with me to meet the entrepreneurs who will drive this revolution. I’ve seen what they are doing and I have no doubt that we can meet this challenge.


To those who say the costs are still too high: I ask them to consider whether the costs of oil and coal will ever stop increasing if we keep relying on quickly depleting energy sources to feed a rapidly growing demand all around the world. When demand for oil and coal increases, their price goes up. When demand for solar cells increases, the price often comes down.


When we send money to foreign countries to buy nearly 70 percent of the oil we use every day, they build new skyscrapers and we lose jobs. When we spend that money building solar arrays and windmills, we build competitive industries and gain jobs here at home.


Of course there are those who will tell us this can't be done. Some of the voices we hear are the defenders of the status quo – the ones with a vested interest in perpetuating the current system, no matter how high a price the rest of us will have to pay. But even those who reap the profits of the carbon age have to recognize the inevitability of its demise. As one OPEC oil minister observed, “The Stone Age didn’t end because of a shortage of stones.”


To those who say 10 years is not enough time, I respectfully ask them to consider what the world's scientists are telling us about the risks we face if we don’t act in 10 years. The leading experts predict that we have less than 10 years to make dramatic changes in our global warming pollution lest we lose our ability to ever recover from this environmental crisis. When the use of oil and coal goes up, pollution goes up. When the use of solar, wind and geothermal increases, pollution comes down.


To those who say the challenge is not politically viable: I suggest they go before the American people and try to defend the status quo. Then bear witness to the people's appetite for change.


I for one do not believe our country can withstand 10 more years of the status quo. Our families cannot stand 10 more years of gas price increases. Our workers cannot stand 10 more years of job losses and outsourcing of factories. Our economy cannot stand 10 more years of sending $2 billion every 24 hours to foreign countries for oil. And our soldiers and their families cannot take another 10 years of repeated troop deployments to dangerous regions that just happen to have large oil supplies.


What could we do instead for the next 10 years? What should we do during the next 10 years? Some of our greatest accomplishments as a nation have resulted from commitments to reach a goal that fell well beyond the next election: the Marshall Plan, Social Security, the interstate highway system. But a political promise to do something 40 years from now is universally ignored because everyone knows that it’s meaningless. Ten years is about the maximum time that we as a nation can hold a steady aim and hit our target.


When President John F. Kennedy challenged our nation to land a man on the moon and bring him back safely in 10 years, many people doubted we could accomplish that goal. But 8 years and 2 months later, Neil Armstrong and Buzz Aldrin walked on the surface of the moon.


To be sure, reaching the goal of 100 percent renewable and truly clean electricity within 10 years will require us to overcome many obstacles. At present, for example, we do not have a unified national grid that is sufficiently advanced to link the areas where the sun shines and the wind blows to the cities in the East and the West that need the electricity. Our national electric grid is critical infrastructure, as vital to the health and security of our economy as our highways and telecommunication networks. Today, our grids are antiquated, fragile, and vulnerable to cascading failure. Power outages and defects in the current grid system cost US businesses more than $120 billion dollars a year. It has to be upgraded anyway.


We could further increase the value and efficiency of a Unified National Grid by helping our struggling auto giants switch to the manufacture of plug-in electric cars. An electric vehicle fleet would sharply reduce the cost of driving a car, reduce pollution, and increase the flexibility of our electricity grid.


At the same time, of course, we need to greatly improve our commitment to efficiency and conservation. That’s the best investment we can make.


America's transition to renewable energy sources must also include adequate provisions to assist those Americans who would unfairly face hardship. For example, we must recognize those who have toiled in dangerous conditions to bring us our present energy supply. We should guarantee good jobs in the fresh air and sunshine for any coal miner displaced by impacts on the coal industry. Every single one of them.


Of course, we could and should speed up this transition by insisting that the price of carbon-based energy include the costs of the environmental damage it causes. I have long supported a sharp reduction in payroll taxes with the difference made up in CO2 taxes. We should tax what we burn, not what we earn. This is the single most important policy change we can make.


In order to foster international cooperation, it is also essential that the United States rejoin the global community and lead efforts to secure an international treaty at Copenhagen in December of next year that includes a cap on CO2 emissions and a global partnership that recognizes the necessity of addressing the threats of extreme poverty and disease as part of the world’s agenda for solving the climate crisis.


Of course the greatest obstacle to meeting the challenge of 100 percent renewable electricity in 10 years may be the deep dysfunction of our politics and our self-governing system as it exists today. In recent years, our politics has tended toward incremental proposals made up of small policies designed to avoid offending special interests, alternating with occasional baby steps in the right direction. Our democracy has become sclerotic at a time when these crises require boldness.


It is only a truly dysfunctional system that would buy into the perverse logic that the short-term answer to high gasoline prices is drilling for more oil ten years from now.


Am I the only one who finds it strange that our government so often adopts a so-called solution that has absolutely nothing to do with the problem it is supposed to address? When people rightly complain about higher gasoline prices, we propose to give more money to the oil companies and pretend that they’re going to bring gasoline prices down. It will do nothing of the sort, and everyone knows it. If we keep going back to the same policies that have never ever worked in the past and have served only to produce the highest gasoline prices in history alongside the greatest oil company profits in history, nobody should be surprised if we get the same result over and over again. But the Congress may be poised to move in that direction anyway because some of them are being stampeded by lobbyists for special interests that know how to make the system work for them instead of the American people.


If you want to know the truth about gasoline prices, here it is: the exploding demand for oil, especially in places like China, is overwhelming the rate of new discoveries by so much that oil prices are almost certain to continue upward over time no matter what the oil companies promise. And politicians cannot bring gasoline prices down in the short term.


However, there actually is one extremely effective way to bring the costs of driving a car way down within a few short years. The way to bring gas prices down is to end our dependence on oil and use the renewable sources that can give us the equivalent of $1 per gallon gasoline.


Many Americans have begun to wonder whether or not we’ve simply lost our appetite for bold policy solutions. And folks who claim to know how our system works these days have told us we might as well forget about our political system doing anything bold, especially if it is contrary to the wishes of special interests. And I’ve got to admit, that sure seems to be the way things have been going. But I’ve begun to hear different voices in this country from people who are not only tired of baby steps and special interest politics, but are hungry for a new, different and bold approach.


We are on the eve of a presidential election. We are in the midst of an international climate treaty process that will conclude its work before the end of the first year of the new president's term. It is a great error to say that the United States must wait for others to join us in this matter. In fact, we must move first, because that is the key to getting others to follow; and because moving first is in our own national interest.


So I ask you to join with me to call on every candidate, at every level, to accept this challenge – for America to be running on 100 percent zero-carbon electricity in 10 years. It's time for us to move beyond empty rhetoric. We need to act now.


This is a generational moment. A moment when we decide our own path and our collective fate. I'm asking you – each of you – to join me and build this future. Please join the WE campaign at wecansolveit.org. We need you. And we need you now. We're committed to changing not just light bulbs, but laws. And laws will only change with leadership.


On July 16, 1969, the United States of America was finally ready to meet President Kennedy’s challenge of landing Americans on the moon. I will never forget standing beside my father a few miles from the launch site, waiting for the giant Saturn 5 rocket to lift Apollo 11 into the sky. I was a young man, 21 years old, who had graduated from college a month before and was enlisting in the United States Army three weeks later.


I will never forget the inspiration of those minutes. The power and the vibration of the giant rocket’s engines shook my entire body. As I watched the rocket rise, slowly at first and then with great speed, the sound was deafening. We craned our necks to follow its path until we were looking straight up into the air. And then four days later, I watched along with hundreds of millions of others around the world as Neil Armstrong took one small step to the surface of the moon and changed the history of the human race.


We must now lift our nation to reach another goal that will change history. Our entire civilization depends upon us now embarking on a new journey of exploration and discovery. Our success depends on our willingness as a people to undertake this journey and to complete it within 10 years. Once again, we have an opportunity to take a giant leap for humankind.

Global Solar introduces a thin film alternative

Today at Intersolar 2008 in Munich, Global Solar Energy said it introduced an innovative thin film product for Building Integrated Photovoltaic, or BIPV, manufacturers.

The Tucson, Arizona-based company claims its PowerFlex Solar Strings will simplify and speed the process of incorporating thin film technology for the BIPV manufacturing process.


With its new product, Global Solar said it is making it easier and less expensive for solar panel and module manufacturers to enter the thin film market.


Due to the nature of the flexible, stringed thin film product, silicon-based product and module manufacturers can inexpensively and efficiently "drop-in" the new product on their current manufacturing process and quickly enter the thin film market without extensive overhead, said Global Solar.


Global Solar said it will manufacture its PowerFlex Solar Strings with its "roll-to-roll" process, which it says is more cost-effective than traditional in-line manufacturing approaches.


In addition, the company said the pre-connected nature of the product to the CIGS cells also add to the low cost, high efficiency attributes of the product.


Since thin film PV does not rely heavily on silicon, an expensive and increasingly rare material, the thin film race is heating up.


Companies such as First Solar, Nanosolar, Ascent, Sharp Solar and Miasole are all in the race to produce the most efficient, cost effective thin film solar cells.


In January, Global Solar, a company that entered the thin film market four years ago, announced its CIGS cells — which are not dependent on silicon — reached a solar cell efficiency rate of 10 percent.


Founded in 1996, the company began introducing its thin film PV cells to consumer applications and brands such as Coleman Outdoor Products, solar-powered jackets and personal electronic equipment chargers.


The company first introduced its PowerFlex material — the material that is being used in the solar string product — in March at WIREC 2008.


The company said this material can be built directly into commercial, residential and government products.

Biofuels Equipment Company Establishes Independent Operations, Seeks New Office Space

Arisdyne Systems, an alternative fuel, cavitation technology and equipment company headquartered in Cleveland, recently raised $5.3 million in new equity financing to facilitate research on biofuel production methods. The completed financing confirms Arisdyne’s initial success, and augments previous funding from the core group of investors. Capital was raised as part of the restructuring that established Arisdyne as an entity independent from parent company Five Star Technologies.

"This equity financing transaction represents a strong endorsement from the board and investors and will permit the management team to focus more aggressively on clean energy resources and biofuel technology," said Fred Clarke, President of Arisdyne Systems. "We are honored to receive such a vote of confidence and look forward to establishing Arisdyne as a leading alternative fuel technology equipment company."


The Five Star board of directors decided to establish Arisdyne Systems as an independent entity after seeing the results of cavitation research in a wide range of biofuels applications and concluding the technology was a viable and underfunded investment. Arisdyne Systems will now report to its own, newly formed board of directors, and will license cavitation technology from the recently formed Cavitech Holding Company (CHC), which will own the Intellectual Property.


The company is now well positioned to expand research in biofuels by exploring related technologies as well as processing non-food feedstocks. Additionally, more resources can now be directed to the development of methods for applying Arisdyne’s technology for enhancing yields and accelerating ethanol production. The current equity financing complements the one million dollar grant Arisdyne received in March from the Ohio Third Frontier Alternative Energy program, which will create 10 to 15 new jobs over the next two to three years.


Arisdyne is currently working with state agencies and a real estate advisor in a search for a new, more suitable location and will use part of the new funding to move Arisdyne to a more appropriate headquarters facility.


Arisdyne Systems is the pioneering authority in the use of hydrodynamic cavitation to produce biofuels. They are at the forefront of America’s alternative energy industry with more than 21 U.S. patents and 50 international patents. For more information, call 440-239-7005 or visit the company website at www.arisdyne.com.

Bush approves offshore drilling to spur on Congress

There has been a US ban on offshore oil drilling for the past 27 years, and George Bush Sr. signed off on an executive order echoing the ban in 1990. Originally, the ban was agreed upon to protect the beaches and tourism economies of coastal towns, and now global warming has been added into the mix.

With one stroke of the mighty pen, George Jr. has undone his father's order by lifting the ban on offshore drilling, but the move means nothing unless Congress also lifts its separate ban. The Bush Administration is trying to put pressure on Congress to throw out its ban, but so far the Democrat-controlled Congress isn't budging. Sen. Barbara Boxer called the move "something you'd expect from an oil company CEO, not the president of the United States."

President Bush has made no bones about his desire to drill for the billions of barrels of oil believed to be hidden beneath our coastlines, and with gas prices at $4.25 per gallon, much of America is on his side. The price of gas is now right up there with the war in Iraq and the economy as the top concern of Americans, so the Congress could be in a similar spot as the Republican controlled Congress was when it backed the Iraq war back in 2006. Many non-coastal Americans are more concerned about being able to afford fuel than they are about terrific views off the coast of Maine or beaches in south Florida. Instead our environment will have to be the rationale for Congress to uphold the ban. Will the Congress bow to public and political pressure and allow drilling, or will they risk re-election and do the right thing for the environment? Only time will tell.

Spire Introduces Integrated 25 MW Solar Cell-Module Line

Spire Corp., a global company providing solar factories and capital equipment, has introduced a fully integrated, 25 MW cell-module turnkey photovoltaic production line. The company says the system has been designed to integrate both cell and module manufacturing, converting silicon wafers directly into high-efficiency, low-cost modules.

"With the coming availability of low-cost wafers and the move toward higher-scale and vertical integration, this is the quickest route to becoming a serious player in the photovoltaic manufacturing business," says Roger Little, Spire's chairman and CEO.

"We can make both lines more efficient by combining them. By adding commonality throughout the line, our customers will have the best possible handling of the wafers and cells, which represents the majority of their operating costs," he adds.

In addition to improved handling and yield, combining cell and module manufacturing offers manufacturers other advantages. Spire's Fab Vision software extends its reach from wafer to module and provides the key information and lot tracking required to maximize yield and throughput.

The turnkey package also provides the key embedded process training, access to critical materials, finished designs of both cells and modules, and direct assistance with the certification to sell the end product in the most lucrative markets.

Spire Corp.: (781) 275-6000.

Lego’s Windmill Set Allows You To Stick It To The Zoning Board

Town zoning board getting you down? Anti-wind organizations befuddling you with their concerns? Feeling the ache of not being able to install your own personal turbine? Well, now you can shut out the rest of the world and focus on this great new kit from Lego called “The Vestas Windmill Kit”.


Standing over two-feet tall, this model of alternative energy features a Vestas wind turbine, control center, and a van. But don’t expect to buy a bunch of these and string them up on your roof. While the turbine is motorized, it’s not generating its own power. That probably comes from batteries. Damn them!


Can the next Lego set please include a solar array to power this thing?

Anaconda Could Provide up to 20 MW of Wave Energy

A device consisting of a giant rubber tube may hold the key to producing affordable electricity from the energy in sea waves. Invented in the UK, the "Anaconda" is a new wave-energy concept. Researchers working on the device say its simple design means it would be cheap to manufacture and maintain, possibly enabling it to produce clean electricity at lower cost than other types of wave energy converter. Cost has been a key barrier to deployment of such converters to date.


Named after the snake of the same name because of its long thin shape, the Anaconda is closed at both ends and filled completely with water. It is designed to be anchored just below the sea's surface, with one end facing the oncoming waves.


A wave hitting the end squeezes it and causes a "bulge wave" to form inside the tube. (A bulge wave is a wave of pressure produced when a fluid oscillates forwards and backwards inside a tube.) As the bulge wave runs through the tube, the initial sea wave that caused it runs along the outside of the tube at the same speed, squeezing the tube more and more and causing the bulge wave to get bigger and bigger. The bulge wave then turns a turbine fitted at the far end of the device and the power produced is fed to shore via a cable.


Because it is made of rubber, the Anaconda is much lighter than other wave energy devices (which are primarily made of metal) and dispenses with the need for hydraulic rams, hinges and articulated joints. This reduces capital and maintenance costs and scope for breakdowns.


The Anaconda is, however, still at an early stage of development. The concept has only been proven at very small laboratory-scale, so important questions about its potential performance still need to be answered. Funded by the Engineering and Physical Sciences Research Council (EPSRC), and in collaboration with the Anaconda's inventors and with its developer, Checkmate SeaEnergy, engineers at the University of Southampton are now embarking on a program of larger-scale laboratory experiments and novel mathematical studies designed to do just that.


Using tubes with diameters of 0.25 and 0.5 meters [approx. 10 to 20 inches], the experiments will assess the Anaconda's behavior in regular, irregular and extreme waves. Parameters measured will include internal pressures, changes in tube shape and the forces that mooring cables would be subjected to. As well as providing insights into the device's hydrodynamic behavior, the data will form the basis of a mathematical model that can estimate exactly how much power a full-scale Anaconda would produce.


When built, each full-scale Anaconda device would be 200 meters [656 feet] long and 7 meters [23 feet] in diameter, and deployed in water depths of between 40 and 100 meters [131 to 328 feet]. Initial assessments indicate that the Anaconda would be rated at a power output of 1 megawatt (MW) and might be able to generate power at a cost of UK 6p [US $0.12] per kilowatt-hour (kWh) or less. Although around twice as much as the cost of electricity generated from traditional coal-fired power stations, this compares very favorably with generation costs for other leading wave energy concepts.


Together with tidal energy, it is estimated that wave power could supply up to 20% of the UK's current electricity demand.


"The Anaconda could make a valuable contribution to environmental protection by encouraging the use of wave power," says Professor John Chaplin, who is leading the EPSRC-funded project. "A one-third scale model of the Anaconda could be built next year for sea testing and we could see the first full-size device deployed off the UK coast in around five years' time."

Noble Environmental Power Builds Michigan's Newest Windpark

Noble Environmental Power, a leading wind energy developer, announced that construction on Michigan's newest windpark is underway. The Noble Thumb I Windpark is expected to generate 69 megawatts (MW) of clean energy using 46 GE 1.5-MW turbines.

Construction work on the Noble Thumb I Windpark is being performed by RMT WindConnect. Noble estimates that the project will create approximately 85 new construction jobs, and will result in more than US $3.5 million in property tax payments over the next 20 years. Once the Noble Thumb I Windpark is operational, hundreds of thousands of dollars in easement payments will be made to landowners each year.


Noble has approximately 3,850 MW of windparks under development in eight states. In May, Noble held ribbon-cutting ceremonies for three newly-operational windparks in New York State and in June the company held groundbreaking ceremonies for four more New York State windparks. Noble also recently began construction of the 114-MW Noble Great Plains Windpark in Texas.

eSolar lands solar power plant deal

The company, created by Idealabs and funded by Google.org, makes utility-scale concentrated solar power systems with a modular design.


Software-controlled heliostats, or mirrors, reflect light onto a tower where the heat turns water to steam that turns a turbine.


The company raised $130 million in April.


California is a hotbed for utility-scale solar power because the state has relatively aggressive renewable energy targets.


The state's renewable portfolio standard mandates that utilities generate 20 percent of their electricity by 2010 and 33 percent by 2012.


In desert areas like parts of Southern California, concentrating solar thermal technology has become the preferred renewable energy source.


eSolar's technology, however, is a break with the traditional reflective trough now used in a number of power plants around the world.


eSolar says that its heliostat and thermal receiver design cuts down on costs in different areas such as using prefabricated heliostats.

Eco Tips for a Green Nursery from the Experts in LA

For eco-savvy parents in Los Angeles, Bel Bambini is hosting an event in store on Tuesday July 15th to equip moms with tips on how to create a healthy, eco-friendly nursery using green building products from leading experts.


Experts and hosts include:


  • Hostess, Anna Getty, founder of Pregnancy Awareness
  • Jay Watts from Healthy Child, Healthy World
  • Josie Maran, founder of Josie Maran Cosmetics
  • Kristina Lin, owner of Bel Bambini

Not only can green parents come get information on greening their children’s rooms, but they can also shop for a cause. A portion of sales from the day will go to the Pregnancy Awareness Foundation, which educates women on incorporating easy changes to boost exercise, nutrition and wellness to benefit themselves and their children.


The event will also feature eco-friendly prizes from Sage Creek Organics (an ADORABLE eco-line), AFM Safecoat, Green to Grow and more…call 213.627.1230 for more information. If you aren’t able to attend.

Chrysler plans electric vehicles, could be ready in 3-5 years

Chrysler LLC's answer to the much-anticipated Chevrolet Volt could be three to five years away, the Free Press has learned.

The Auburn Hills automaker launched a special division within the company last fall called ENVI -- pronounced like "envy" -- to bring electric-drive vehicles and related advanced-propulsion technologies to market.


"ENVI is currently developing electric vehicles for the three Chrysler brands and is planning on product within three to five years," Nick Cappa, a Chrysler spokesman, told the Free Press in an e-mail.


General Motors Corp. has promised a breakthrough electric-drive vehicle -- commonly referred to as a plug-in hybrid -- called the Chevy Volt by 2010.


The move by Chrysler comes as some dealers quietly question why Chrysler is not stepping up efforts to bring more hybrid technology to market quicker in light of $4-a-gallon gasoline and tanking SUV and truck sales.


Some dealers tell the Free Press they've been told not to expect the bulk of the automaker's lineup to have a hybrid option in the near future.


Alan Helfman, vice president of Helfman River Oaks Chrysler Jeep in Houston, said he has been told not to expect many hybrid offerings before 2012. "It's lamenting. ... You don't have to have every car -- not everyone wants a hybrid -- but it's obviously a profound proportion of the industry right now," he said.


Another dealer, who didn't want to be named because product plans are secret, echoed those thoughts: They "need to put that hybrid in."


Around September, Chrysler will begin to offer two hybrids: the Chrysler Aspen and Dodge Durango -- both SUVs and both priced below GM's similar models.


GM and Chrysler teamed up with Mercedes-Benz and BMW to develop a two-mode hybrid system.


Chrysler, beyond announcing plans to have a Dodge Ram hybrid in its 2010 model year, remains mum on hybrid plans, other than to hint that more is to come.


A market forecast by J.D. Power and Associates predicts that Chrysler will offer a hybrid option with the Dodge Grand Caravan next year and with the Dodge Avenger car and Journey crossover in 2013.


One independent dealer told the Free Press that Chrysler officials have said it could be as long as 2012 for a Jeep Grand Cherokee.


Paul Lacy, an industry analyst with Global Insight, however, predicts Chrysler will be marketing a hybrid version of the Jeep Grand Cherokee in the 2010 model year as part of the automaker's response to recent federal legislation that requires it to make more fuel-efficient vehicles.


"As soon as the energy bill starts to take effect, they'll pound in on these things. They won't have a choice," Lacy said. He also said he expects a Dodge Charger hybrid by 2011.


Private equity firm Cerberus Capital Management acquired majority control of Chrysler from now-Daimler AG last August. Since then, Chrysler has undergone dramatic changes as it races to remake itself as a smaller company and deal with a worsening U.S. auto industry.


Chrysler's U.S. sales are down 22%, hurt particularly by its truck-heavy lineup. The privately held automaker has also had to battle speculation about its financing, issuing statements to deny bankruptcy fears and to say it is beating financial goals.


"The big thing for Chrysler is money. It's a cost thing. ... They don't have any," Lacy said of why Chrysler can't rush hybrids to market quicker.


"They have been involved in a cooperation with GM ... but they haven't really made any commitments. They've also put a lot of money into their up-and-coming diesel lineup."


The automaker said pulling forward hybrid models is no simple matter. "There's a full plan in place for hybrids at Chrysler," Cappa said.


Chrysler has given few details about what its ENVI efforts will produce. "ENVI is going to play a lot deeper role than a lot of people think going forward," Cappa said.


"If you want to go ahead and make everything a full hybrid system, fine, but what if you can turn everything into a range-extended vehicle and take it beyond the 2020 campaign for 35 miles per gallon?" Cappa asked. "The new technology ENVI is developing could do that."


Last year, Chrysler announced plans to spend $3 billion to develop more fuel-efficient powertrains. A big part of that announcement has been the development of a new V6 engine, axle and dual-clutch transmission, all of which Chrysler executives promise will deliver fuel savings.


And there are Chrysler's diesel efforts. The new Dodge Ram is expected to have a diesel option to introduce after 2009.


Carl Galeana, vice president of Van Dyke Dodge in Warren, said he's frustrated about the hybrids but hopes Chrysler's diesel plans will help.


"I don't know if hybrid is going to be the magic wand," Galeana said. "I think we're certainly going to see diesels and other things that will be just as meaningful as a hybrid car and maybe more, as far as functionality and real-life usage."


He said the company will be better off by 2010. "If we're able to get some decent European diesels in the mix, I think that will help us a great deal."

What the Talking Heads Don’t Talk About

Sometime back on National Public Radio, a panel discussed the high cost of gasoline and what the next president should do about it. When asked if we should be concerned about running out of oil, a panelist quipped that “President Obama” will create appropriate tax incentives for photovoltaics and oil will become so much “useless sludge”. Am I alone in thinking that there is a general lack of understanding about what the future holds for all of us when petroleum runs out?


Yes, We Eat Oil


When nitrogen is allowed to infiltrate a suitable body of water, the normal population of algae grows explosively. It consumes available nutrients and oxygen, turns the water green, and kills most other species. The algae, unable to thrive under the conditions they themselves have created, begin to die. This is called an algae bloom.


Petroleum is humanity’s source of nitrogen. Increasingly, we’re aware that it doesn’t just heat our houses and propel our cars; we actually eat it. Through the twin miracles of modern agriculture and wet-milling, petroleum becomes nitrogen fertilizer, which becomes corn or soybeans, which become virtually every and any processed food product we know (including virtually all meat and farmed fish). In Michael Pollan’s acclaimed book The Omnivore’s Dilemma, he documents that over sixty percent of the average American’s diet comes from (petroleum-derived) corn!


Why Do We Eat Oil?


It’s petroleum that allows one farmer to feed ten thousand people. After all this time, it still costs less than a dollar to pump a barrel of oil out of the ground. Cheap petroleum gave rise to an a sustained era of over-producing food, which led to an explosion in world population. With any luck, petroleum will run out before we complete our algae-like “bloom” cycle.


Too Many People on Earth


Global climate change, dwindling aquifers, the accelerated loss of species and habitat are symptoms of a bigger disease: human overpopulation. How do we know this? For one, simple arithmetic. If you take the entire area of the earth’s surface, subtract out oceans, deserts, and extreme latitudes, and divide the result by six billion people (our current population), you get about four acres of habitable land per human, of which approximately two are suitable for growing food. The debate, then, is about whether a few acres is enough to sustain each of us — that is, without petroleum.


Most people frame the issue in terms of carrying capacity. Some estimates for the carrying capacity of our planet range between eight-hundred million and eight billion people. (Actually, estimates vary more widely because determining what humans need, want, and then actually use, is non-trivial.) The lower number reflects the notion that there is not just a physical carrying capacity, but a social carrying capacity for the planet, which takes into account issues of competition, free will, and so forth human nature.


If you ask a person on the street, likely they’ll tell you that Earth’s carrying capacity is around, or somewhat above, our current population. In other words, most folks assume that there is always room for a few more of us. I’d argue that we’ve already way overshot the mark.


Smallest Footprint Too Big


Is the lower number more realistic? I’ve met a number of people who’ve attempted self-sufficiency on ten, twenty, and even forty acre properties. Not for lack of ability or effort, but no one was successful: all were dependent on some amount of petroleum and petroleum-manufactured goods. Observation and personal experience has led me to believe that estimates for sustainable footprints are low, chiefly because they ignore a dependence on fossil fuel energy, which will have to be made up by wood and other sources of fuel. These require additional acreage to produce. Consider that without access to oil or coal, the Romans denuded much of Italy’s forests making cement and smelting steel.


What About Solar?


Solar technologies (photovoltaic, wind, hydro, and solar-thermal) are vital.[3] However, they’re not a replacement for petroleum. If you think about it, petroleum is just another form of solar energy. Ignoring the time period and the process by which it was actually formed, petroleum represents stored solar energy equivalent to a significant fraction of all the sun’s energy that struck the Earth for hundreds of years. The trouble is that we’ve gone through virtually all this energy in the last few decades. (Ever had a cell phone that used more power than the battery charger could feed to it? Once dead, even plugged in, it will make no more calls for a while.)


Even with solar cells on every roof, we still can’t sustain our current population without petroleum. We can’t imagine what it will be like to run out of oil.

What Does ‘Decimation’ Mean?


Does recorded history offer any examples of large human populations faced with this level of stress? “Lesser” examples abound right now: competition for limited resources in areas like Somalia, Zimbabwe, Ethiopia, Palestine, and Iraq, to name a few. (It’s said that all wars, directly or indirectly, are about competition for resources.) I don’t mean to trivialize the suffering and upheaval in this places, but consider: at a carrying capacity number of eight-hundred million for our planet, and if we grow to eight billion by the time we effectively run out of oil, today’s most pressing issue is that we need to reduce our population by ninety percent! The definition of ‘decimation’, by contrast, is only to reduce by one-tenth.


If we face anything like this “reduction”, it’s hard to imagine that civil government — and modern economies — wouldn’t collapse, along with all the good stuff that comes with them: the ability to preserve the natural world and its species; art, culture, technology, and wealth.


The Money’s Gone!


If a common concern for most humans is (monetary) wealth, then consider: virtually all wealth as we know it is directly or indirectly petroleum-derived. Even were that not the case, its still hard to imagine that currencies and other vital trappings of an economy can survive when a majority of the population doesn’t. Even economic theory seems to depend on stable, growing populations.


Birth Control?

Theoretically, we might be able to achieve drastic population reduction through less chaotic means, through some form of birth control. Call me a skeptic if you will, but I can’t see getting the consensus needed to make this happen.

Bottom Line


The fact that we are poisoning our planet and ourselves finally has everyone’s attention. What we address now may determine what, if anything, we leave our grandchildren. Nevertheless, the scarier problem facing all of us is this: if we are significantly above the planet’s carrying capacity, our population must, and will, shrink dramatically.


It seems that very few people believe population pressure poses such an urgent problem. If overpopulation doesn’t trump all the other problems facing us, I’d like to know why.

Boralex Acquires 100 MW of Wind PowerBoralex Inc. announced that it has acquired the rights for a wind project with a potential installed capacity of

Boralex Inc. announced that it has acquired the rights for a wind project with a potential installed capacity of 100 megawatts (MW) in Ontario, Canada. This wind power project, located in the municipality of Chatham-Kent, will be submitted into the Ontario Power Authority's Request for Proposal III for 500 MW of Renewable Energy Supply likely due this fall.

This request for proposal represents one of the measures taken by the Ontario Government in view of obtaining 2,000 MW of renewable energy. This wind power site was developed by Gengrowth who will continue to work with Boralex on the project.

This strategic acquisition allows Boralex to reinforce its presence in Canada, principally in a region favourable to the production of renewable energy, and in a sector where its expertise is recognized,” said Patrick Lemaire, president and CEO or Boralex. "Boralex and Gengrowth have united each others forces one more time."

Stunning Eco Home To Be First Andalusian Zero Carbon Footprint House!

Eco Architecture

The team at Diseño Earle was kind enough to pass along some info and images of their stunning design of The Eco Home -- a knockout that's aiming to be the first 'zero carbon' footprint home in Andalucia, or even Southern Spain for that matter! D Earle designed the home with two objectives in mind: (1) zero carbon footprint, and (2) reduce operating costs to almost a self-sufficiency level. The 6995 sf home, which is absolutely enormous, will be built with 75% less waste than a traditional design and operate 80% more efficiently than a similar sized home. And although the home design was constrained by the narrow, non-flat site, you can tell there was no restraint in creating the ultimate, luxury, green pad.


The Wing-Like Rooftop:
A key environmental aspect of the home is the wing-like roof. Not only does the roof bury and embed the solar panels out of sight, but it's at the right angle to capture and convert the sun's rays into energy. In addition, the design calls for space between the roof and home so that less direct heat is absorbed by the home and air can pass over it, cooling the structure in the process.


The Eco Home has all the green features you would expect in a luxurious green abode, including: rainwater reclamation system, grey water recycling, radiant heating system powered by the solar panels, geothermal energy for back-up cooling and heating, low VOC paints, LED lights, environmentally-sensitive smart glass and abundant natural lighting, and energy and water efficient appliances.

5 iPhone Apps to Help Save Gas

If you upgraded early and don’t have an iBrick 3G, you’re presumably cruising Apple’s new app store. And if you’re also a green geek who’s looking to save fuel, and some money on high gas prices, we found 5 applications that can help you out; they’re basically replacements for the little notebook and pencil your dad kept in the glove compartment to track his gas usage, just with a touchscreen interface.

MPG: Tracks mileage and spits out slick graphs and quick comparisons of performance. Hypermilers, enjoy. Made by Appigo. 99 cents.

FuelGage: Same functionality as MPG but no graphs. Tracks multiple vehicles and trip totals, good for splitting gas costs. Made by Joseph Kueser. 99 cents

GasHog: A less slick-looking MPG. No graphs. 99 cents



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WHERE: GPS and GasBuddy work together to get you gas prices from the nearest stations. Made by uLocate Communications. Free.

Cow burps help Argentines study climate change

Argentine scientists are taking a novel approach to studying global warming -- strapping plastic tanks to the backs of cows to collect their burps.

Researchers say the slow digestive system of cows makes them a producer of methane, a potent greenhouse gas that gets far less public attention than carbon dioxide in efforts to fight global warming.


Scientists around the world are studying the amount of methane in cow burps and Argentine researchers say they have come up with a unique way.


Attaching a red plastic tank to a cow's back and connecting it through a tube to the animal's stomach, scientists say they can trap bovine burps and analyze them.


"When we got the first results, we were surprised. Thirty percent of Argentina's (total greenhouse) emissions could be generated by cows," said Guillermo Berra, a researcher at the National Institute of Agricultural Technology.


One of the world's biggest beef producers, Argentina has some 55 million heads of cattle grazing on the famed Pampas grasslands.


Berra said the researchers "never thought" a cow weighing 550 kg (1,210 lb) could produce 800 to 1,000 liters (28 to 35 cubic feet) of emissions each day. At least 10 cows are being studied, Berra said, including some in a corral whose burps are collected in yellow balloons hanging from the roof.

Greenhouse gases are widely blamed for causing global warming. Methane, researchers say, is 23 times more potent than carbon dioxide in trapping heat in the atmosphere and can be found in animal waste, landfills, coal mines and leaking natural gas pipes.


Scientists are working to develop new diets for cows that could make it easier for them to digest food, moving them away from grains to plants like alfalfa and clover.


"We have done a preliminary study and have found that by using tannins, you can reduce methane emissions by 25 percent," said Silvia Valtorta of the National Council of Scientific and Technical Investigations.

Taking On Population and Climate Change

Examining linkages between population and climate change through many different frames leads to important research and policy questions — and it also allows the reproductive health community to discuss these linkages in a productive and positive way. If we leave the debate unframed, and the research questions unanswered, we leave space for harmful discourse and inaccurate facts to take center stage. The following series of blog posts, written by staff at Population Action International, will look at population and climate change from different angles, and provide an initial review of some of the broad frames.


Dr. Karen Hardee raises many of the difficult ethical issues that arise when population and climate change are linked. She examines these linkages from a women’s rights and empowerment frame. She encourages people, both those comfortable and uncomfortable with the linkage between population and climate change, to discuss the issue in order to come up with the best solutions and avoid mistakes of the past.


Dr. Leiwen Jiang approaches the issue from a demographic perspective, highlighting our need to understand the extent to which increasing population size, age structure and urbanization affects climate change. Research on demographic variables and their relationship to climate change show that population does indeed matter. Moreover, increases in population size, whether through migration or fertility, in regions vulnerable to the effects of climate change (such as coastal areas) mean more total people at risk.


There are many questions to explore. Does population growth in high carbon emitting countries such as the United States matter to climate change? How do the age structure, migration patterns and urbanization of a country affect energy consumption? Does demographic change, such as movement towards a mature age structure, increase a society’s resilience to climate change?


Malea Hoepf Young discusses the impact of climate change on women. From a gender perspective, women will suffer disproportionately from the effects of climate change. In their effort to adapt to severe weather, water scarcity, food insecurity and other consequences of changes in the climate, women and girls suffer increased workloads and as a result poor families often pull girls out of school. At home caring for young children and the elderly, women and girls are much more likely to die in severe weather events, unable or unaware of where to seek shelter.


While the demographic frame to the issue is still being explored through research and analysis, the gender frame is an area in which Population Action International has been able to apply what we know about women and development to the population and climate debate. For example, we know that women are powerful agents of change. While they are more vulnerable to the negative effects of climate change, they are also better positioned to help communities adapt to these changes.


There is very little research on what development activities will most contribute to increasing people’s resilience to the adverse impacts of climate change. However, we know that family planning is critical to the health and well-being of a family — including their economic stability. Therefore, family planning could also be an important contributor to resilience.


At the family level, the benefits of family planning on health and economic well-being are well documented. Is a woman who can time and space her childbearing better able, through better health and opportunity, to adapt to negative effects wrought by climate change? Smaller families tend to be healthier families, and women who use family planning have greater economic opportunities, increased control over all aspects of their lives and are thus likely to be more resilient to environmental, economic and human health challenges.


Will meeting women’s expressed need for good reproductive health care better enable them to participate in the stewardship of the environment and improved agricultural production?


Slowing population growth through voluntary family planning and reproductive health programs is an essential part of long-term efforts to reduce greenhouse gas emissions, as well as an important component of programs that aim to help vulnerable communities to adapt to climate change. It is also a cost-effective way to improve the health and well-being of individuals around the world. Couples deserve universal access to family planning and reproductive health, provided in a way that respects their rights to determine how many children they have and when. That will help people and countries and, hopefully, the planet.

San Francisco Victory Garden

The area in front of San Francisco’s city hall doesn’t exactly represent lush farmland but that doesn’t prevent it from being a viable SF food source. For the first time since 1943, San Francisco Mayor Gavin Newsom, Slow Food Nation founder Alice Waters and more than 100 volunteers planted the first edible garden in the City’s Civic Center. This victory garden, which takes its name from from 20th Century wartime efforts, helps to address food shortages by encouraging citizens to plant gardens on public and private land.

Victory gardens continue to spring up in and around the City as food prices continue to rise and food sustainability becomes more of an issue. This Civic Center venture found its funding through various organizations including Slow Food Nation, CMG Landscape Architecture, City Slicker Farms, The Presidio Native Plant Nursery, Alemany Farms, Friends of the Urban Forest, Ploughshares Nursery, Urban Permaculture Guild, Coevolution Institute and many others.


Our salad bowl spins with the thought of the many crops being grown Amaranth, Snap Bean, Pole Bean, Dry Bean, Broccoli Raab, Ground Cherry, Chicory, Chinese Cabbage, Collards, Cowpea, Cress, Leeks, Okra, Bunching Onion, as well as Calendula, May Flowers, Sunflowers and many others. Being realists, we thought that in this City that how will these crops survive with all the pesky homeless and veggie thieves but the city provides on-site security to guard against theft.


Best of all, we applaud that instead of having a “veggie sale” or the like, the food grown in the garden will be donated to those with limited access to healthy, organic produce through the local food bank’s meal program.

Eco nightclub set for launch in London

Welcome to Surya -- self-styled "world's first ecological nightclub" where cyclists and walkers get free admission to a club with dancefloor so high-tech it generates its own electricity when people move on it.

The brainchild of 35-year-old property developer Andrew Charalambous, aka Dr. Earth, Surya has its own wind turbine and solar energy system, with the plan to donate any surplus electricity to local residents.


When clubbers need a rest from strutting their stuff on the dancefloor they can relieve themselves at the latest air flush, waterless urinals and low flush toilets as well as taking the opportunity to freshen up with the club's automatic taps.


If Princes Harry and William and their aristocratic friends, who are frequently spotted at Boujis or Mahiki, want to attend Surya they will have to sign a pledge to work towards curbing climate change like all patrons attending the club in north London.


"Unless we stop preaching to people and use an inclusive philosophy we're never going to create the revolution to combat climate change," Charalambous told Reuters, explaining why he has invested one million pounds in the club.


"It's also about creating avenues of thought. Imagine what you could achieve if big corporations adopted this kind of initiative."


At the age of 23, Charalambous stood as a Conservative parliamentary candidate against the late Labour MP Bernie Grant and backed Boris Johnson's successful campaign to become London mayor.


A qualified barrister, now worth in excess of 100 million pounds, his latest business venture will recycle glass, metal, plastic and paper products used in its bar, with Charalambous promising to donate part of the club's profits to charity.


The dancefloor uses the concept of piezoelectricity, where crystals and ceramics create a charge to generate electricity.


"We estimate that if you had loads of clubbers dancing vigorously it would provide 60 percent of the club's energy needs," said Charalambous.


"With the wind turbines and solar power we aim to provide the energy needs of 14 to 20 local residents. We are the first free energy-donating business in the world."


However, Charalambous' claim that his club is the "world's first ecological nightclub" has raised the hackles of the Sustainable Dance Club (SDC) in the Netherlands.


"They are not sustainable in our rules," SDC spokesman Vera Verkooijenat said, ahead of the September launch of Wvatt, which has been dubbed the "world's first sustainable dance club".


"It's not only the nightclub, it's the whole organisation that should be sustainable."


But Charalambous dismissed the criticisms, arguing the SDC's complaints were typical of the attitude of some holier-than-thou environmental activists, as he defended the idea behind Surya, the Sanskrit term for the Sun God.


"They've been talking about it for a while, but they haven't done it," said Charalambous. "They want to preach to people and that's the wrong way go about it."

Clean Solar-Powered iPod Charger Arrives in Time for Summer

Milliamp LTD, which owns the website www.ipodjuice.com, has a brand new solar power iPod charger (http://www.ipodjuice.com/solar-powered-ipod-battery-charger.htm) that can charge any iPod or iPhone just from the rays of the sun.

A solar powered iPod charger is a must if you are heading to the beach, going on a camping trip, or contemplating the possibility of surviving World War III,and still want to listen to your music all day long. Seriously, though, having the ability to charge you iPod from the sun let's you use an iPod in more places than you ever thought of before.

"Our solar iPod charger (http://www.ipodjuice.com/solar-powered-ipod-battery-charger.htm) not only absorbs power from the sun, but also charges via wall outlet.", said Anthony Magnabosco, the owner of www.ipodjuice.com. This charger also comes with a slew of adaptors for not only the standard port at the bottom of iPods and iPhones, but for a wide variety of cell phones as well.

The device itself is black, small, and compact. It has a smooth exterior and the two inside panels have enough surface area to soak up the rays and quickly charge up the 1200 mAh lithium battery tucked inside. This is a large amount of power, and far exceeds the playtime that comes inside most iPods when they leave the factory, resulting in hours and hours of more playtime.

If you think about it, once the battery inside the solar-powered iPod charger is fully juiced up, you have a stash of power at the ready for the times you need it most. "You can charge it up and then keep it stored until you need it most.", continued Magnabosco.

This is not the first iPod charger that has been available at the ipodjuice.com website. They have wall outlet chargers, automobile chargers, and data cables that charge up the earlier iPod modesl as well as the new models like the iPhone, iPod touch, and iPod classic. They even have USB and FireWire cables that charge your device let you transfer songs to your computer.

This particular solar-power iPod charger (http://www.ipodjuice.com/solar-powered-ipod-battery-charger.htm) has been available for a few months now, and the customer response has been extremely favorable. "We hear from customers all the time who rely on this solar charger during their outdoor activities.", added Magnabosco. One customer even reported that he uses his solar iPod charger when he is on his boat, another use that many people may never even considered before.

Just in time for summer, the price of their iPhone and iPod solar power charger and charger has been reduced, so now is the time to order yours and get one while it's hot (and sunny).

NASA Maps Reveal Wind Energy Sources

Efforts to harness the energy potential of Earth's ocean winds could soon gain an important new tool, global satellite maps from NASA. Scientists have been creating maps using nearly a decade of data from NASA's QuikSCAT satellite that reveal ocean areas where the wind resources exist to produce wind energy.

The new maps could help developers better plan the locations of offshore wind farms. The research was funded by NASA's Earth Science Division, which works to advance the frontiers of scientific discovery about Earth and its climate.

"Wind energy is environmentally friendly. After the initial energy investment to build and install wind turbines, you don't burn fossil fuels that emit carbon," said study lead author Tim Liu, a senior research scientist and QuikSCAT science team leader at NASA's Jet Propulsion Laboratory in Pasadena, California. "Like solar power, wind energy is green energy."

QuikSCAT, launched in 1999, tracks the speed, direction and power of winds near the ocean surface. Data from QuikSCAT, collected continuously by a specialized microwave radar instrument named SeaWinds, also are used to predict storms and enhance the accuracy of weather forecasts.

Disgusted By Trash, Ecopreneur Takes Action

Reusable bag entrepreneur Andy Keller has a lot to say about being well, an entrepreneur. Andy was a software guy back in 2005 when he happen to visit a landfill during a home improvement project and was shocked to discover just how many plastic bags were swirling in the wind…


He told me that this was the moment that got him started on his entrepreneurial adventure. “Note to self,” he said, “I need to start using reusable bags.”


Of, course, back in 2005, the reusable bag trend was just starting. And, people were then, as they are now, carefully purchasing them and carelessly leaving them in the car instead of carrying them into the store with them.


So, Andy set out to create a reusable bag that was easy to carry and harder to leave in the car. ChicoBag, his growing company, manufactures light, washable and easy to carry bags in a variety of fun colors. The bags roll up into a handy carrying pouch and come with a belt or purse clip for added convenience.


So far, business is booming, but slowly… by design. When asked about advice he would give to other ecopreneurs Andy stressed slow growth was key. He also encouraged would be entrepreneurs to be passionate about their business….not to look at it purely as a business venture, but rather as a lifestyle.


Part of that passion for him is helping to rid the world of plastic bags so a key part of his business plan is the recycling program he has set up.


ChicoBag doesn’t want ANY reusable bag to be left in a dark closet or sent to a landfill.Send us all of your tired masses of reusable bags, functional or not. We will distribute them to fixed and low income families ready to start a reusable bag habit or recycle them into new useful products.
Like many an entrepreneur, distressed by a situation, Andy set out to fix it. Well Done

Winding Up For Wind Power

Looking to reduce energy costs and “green” up the community, Norwell, Mass. is considering placing wind-powered turbines right in town.

A committee is preparing to submit an application with the Massachusetts Technology Collaborative, requesting an assessment of six to seven city-owned sites the panel has identified as possible turbine locations.


“I think it’s very exciting,” said Tricia Lederer, the committee’s chairwoman. “It’s important for the town of Norwell to look into this for the cost savings, but also because we need to be looking at more renewable energy in this country.”


Norwell joins a growing list of cities and towns that are taking an interest in locating wind turbines and generating wind power on municipal land.


“I think it’s a combination of increased environmental awareness, and concerns about climate change, as well as concerns about the rising costs of electricity,” said Chris Clark, senior project manager for the collaborative. The quasi-public agency administers the state’s Renewable Energy Trust, a fund generated through a surcharge on utility bills to promote renewable energy in Massachusetts.


The collaborative has already completed 47 municipal wind site surveys in the state, including in Cohasset, Hanover, Kingston, Lakeville, Mattapoisett, Plymouth, Quincy, Scituate, and a joint survey done for Marion, Mattapoisett, and Rochester of a Rochester site. Three other surveys are underway

Green NordicTrack Elliptical Keeps You on the Move

Of course, you always have the option to get outside and run, swim, bike, but as I type this, I have to admit, the last thing I want to do is battle 90 degrees and humidity in Northwest Florida.

So, for those days when it is way too hot to think about venturing outside after you have missed your morning window (and when it gets way too cold in the winter), consider the NordicTrack Green Elliptical.

It’s console contains an onboard battery grid that that captures the “power” you generate when you exercise. The console display lights up with user generated power- no electricity or batteries are needed.


The NordicTrack Green Elliptical has all the great features that you would want in an elliptical, such as:


20-inch stride length
12 different levels of resistance
15 preprogrammed workouts
Heart-rate monitor with EKG grip pulse
Oversize pedals
User capacity of 350 pounds
LCD matrix displays progress through the workout
6 windows display speed, resistance level, time, distance, calories, heart rate, pace
Upper body workout with resistance
Calibrated pacing display to keep you in the correct workout zone for your heart rate


This human-powered ellipitcal is available at Sears for $1299.

Solar Powered Bubble Plane is Awesome

A design for an ultra-environmental aricraft just won the top prize at the prestigious Lucky Strike Junior Designer Award. Roland Cernat, who just graduated from the University of Applied Sciences Schwäbisch Gmünd / Germany created the airplane with the environment in mind.


First, once in the air, it can travel entirely fuelessly, much like other ultra-light gliders. It can tuck away it's tiny propellers for 100% aerodynamic flight. But when it needs an extra boost, generally for take-off, the glider's propellers unfurl, driven by a small electric motor that is powered either by an on-board generator or by thin film solar panels on the planes wings and tail.


We've seen other ultra-lights that get good gas mileage, but every component of this plane was constructed for minimal environmental impact.


The cockpit is constructed entirely from a new kind of plastic that can be melted and re-molded infinitely for cradle to cradle use. It also allows the entire body of the airplane to be clear. And though some (including myself) might this find extremely disconcerting, others would love the experience.


I talked briefly with Roland about the design, and wondered what kind of fuel efficiency one could expect. He said, flying at night and with the worst winds possible, a flight would be about 30 miles per gallon. But with the trickle charge of the solar panels, plus an option to charge from the grid, it's possible that the plane would use absolutely no energy over the course of a flight.

SunPower Snags Massive Florida Solar Power Plant Deal

SunPower said this morning that it’s scored a sunny deal in the Sunshine state. The solar cell maker will build those two massive solar photovoltaic power plants that Florida Power & Light Co. (FPL) has in the works (and we wrote about here). SunPower (SPWR) will design and build the plants, while FPL will own and maintain them. SunPower’s stock rose more than 12 percent on the news, to $68.57.


The bigger of the two will be a 25-megawatt plant in DeSoto County, Fla., which SunPower said will be “the largest solar photovoltaic power plant in the U.S.” It will be slightly larger the 21.5-megawatt plant SunEdison and Duke Energy are building (and similarly claimed would be the largest in the country). But it pales in comparison to the 550-megawatt PV plant that Optisolar has been talking about.


SunPower will also build the smaller but still sizable 10-megawatt photovoltaic plant at the Kennedy Space Center. The DeSoto plant is expected to be completed by 2009, and the Kennedy plant by 2010; the projects still need to be approved by the Florida Public Service Commission.


In addition to the PV plants, FPL is building a 75-megawatt solar thermal plant at its existing Martin combined-cycle power facility; no word yet on which firm scored that deal. FPL estimates that these three solar projects will cost a total of $688 million.

Cheney’s Office Said to Edit Draft Testimony

Vice President Dick Cheney’s office was involved in removing statements on health risks posed by global warming from a draft of a health official’s Senate testimony last year, a former senior government environmental official said on Tuesday.

The former official, Jason K. Burnett, made the assertion and described similar incidents in a three-page letter to Senator Barbara Boxer, a California Democrat who is the chairwoman of the Senate Environment and Public Works Committee. He then stood with her at a news conference at which she excoriated the Bush administration.


“History will judge this Bush administration harshly for recklessly covering up a real threat to the people they are supposed to protect,” Mrs. Boxer said.


Mr. Burnett, a lifelong Democrat, resigned in May from his post as an associate deputy administrator of the Environmental Protection Agency and chief adviser on climate to Stephen L. Johnson, the E.P.A. administrator. Mr. Burnett has previously criticized the administration’s climate policies and endorsed and contributed to Senator Barack Obama’s presidential campaign.


In the letter, while declining to name individuals, Mr. Burnett said the offices of Mr. Cheney and the White House Council on Environmental Quality “were seeking deletions” of sections of draft testimony describing health risks from warming. The testimony was prepared by Dr. Julie L. Gerberding, the head of the Centers for Disease Control and Prevention, for a hearing last October before Mrs. Boxer’s committee.


Mr. Burnett’s letter said the council “requested that I work with C.D.C. to remove from the testimony any discussion of the human health consequences of climate change.”


The changes were made before the testimony was delivered. At the time, the E.P.A., complying with a Supreme Court ruling, was finishing a document assessing whether carbon dioxide, the main emission linked to global warming, endangered public health or welfare as defined under the Clean Air Act.


At the news conference, Mrs. Boxer strongly chided Dana M. Perino, the White House press secretary, for asserting last year that the changes in testimony were justified because the statements did not comport with the influential review of climate risks by the Intergovernmental Panel on Climate Change. “This was a lie,” Mrs. Boxer said.


She demanded that Mr. Johnson turn over all documents related to the assessment of carbon dioxide’s risks, or else resign.


White House officials bluntly rebutted Mr. Burnett and Mrs. Boxer.


“We stand 100 percent behind what Dana said,” said Tony Fratto, a White House spokesman.


“Senator Boxer should not throw around charges like lying in cases where there might be a difference of opinion,” he said.


Marc Morano, a spokesman for James M. Inhofe, an Oklahoma Republican and the ranking minority member on the Senate environment committee, also said the criticism was unjustified.


“All administrations edit testimony before it is submitted to Congress,” he said, describing incidents during the Clinton administration involving Roy W. Spencer, a NASA scientist at the time who questioned the dangers of human-caused warming. Mr. Spencer said his superiors told him not to express his views about the dangers of global warming in testimony.

Better Tools Needed for Cleantech Transfer

Universities and academic institutions are developing new technologies aimed at solving the world’s energy and climate change challenges at a truly amazing pace. Some of the most exciting and promising cleantech ventures are being developed at universities around the world right now, yet barriers to commercialization prevent most from being realized. While many top U.S. universities have tech transfer specialists on staff and departments dedicated to the commercialization of research, many others, especially in developing economies such as Brazil, India and China, don’t have readily available access to investors and industry.

Several years ago I was invited by the Danish Prime Minister to attend a globalization council meeting on the commercialization of university research. We found that although there are 7,500 universities and more than 10,000 research institutions worldwide (twice the size of the global automotive industry), there is no annual forum for academic researchers to convene and exhibit their latest research and innovation to industry.
As a world leader in clean energy and the host of the 2009 United Nations Climate Change Conference, Copenhagen has a unique opportunity to garner international attention for this issue. Fortunately, the Danish government recognizes this, and has offered financial support to help us organize the first ever COPENMIND conference and exhibit this September.


In order to establish the need for this event, we visited 120 universities, which are developing technologies that range from lightweight ceramics for aircraft to unique solar cell PV technology to wave energy. While everyone we spoke with felt their technology offered something valuable to the global marketplace, everyone also agreed they had no such global forum for matchmaking with industry executives and venture capitalists. To confirm that industry would also have interest in such an event, we interviewed 280 businesses including IBM, Siemens, Microsoft, Boeing, Dow Chemical and Coca-Cola – the feedback has been clear and consistent, validating the need for COPENMIND.


As was suggested by our primary research, the response to the inaugural COPENMIND conference and exhibit, September 1-3 in Copenhagen, has been overwhelming. We are now sold out of exhibition space, with 125 universities exhibiting from around the world (representing around $158 billion dollars of research). COPENMIND boasts an impressive roster of U.S. universities, including MIT, Stanford, Columbia, Berkeley as well as representation from Europe, South America and Asia. We also have 3,000 industry executives set to attend, including representatives from leading global companies such as Boeing, Siemens and Toyota.


As we look forward to a successful event in 2008 and to Copenhagen hosting the 2009 United Nations Climate Change Conference, we already have plans for COPENMIND 2009 with a focus on energy and COPENMIND 2010, health – both very relevant industries with huge market potential for improved academic partnerships.


We recognize that COPENMIND is only a first step in response to a critical need for improved university/industry collaboration. In the age of globalization, we need to ensure that innovative minds at universities around the world are being fully utilized with the aim of mitigating climate change and ensuring renewable energy sources.

Spain solar power makers want stable regulations

A majority of Spain's solar power producers on Wednesday asked the government to freeze its subsidy scheme for four years so the industry can meet 5 percent of demand for electricty by 2016.

The Photovaoltaic Business Association (AEF), composed of 13 companies which between them account for 70 percent of Spain's solar power industry, said they had come together to ask for government support to boost output to 10,000 megawatts by 2016.


Government officials have estimated a more modest growth target of 6,000 MW by 2020. AEF estimates that installed capacity in solar power generators will reach 800 MW by the end of this year.


"(We aim) to gradually increase the efficiency of photovoltaic energy until in the medium-term it achieves parity with European costs for producing electricty from fossil fuels," said new AEF president Jual Laso.


Spain plans to renew a scheme for paying special premiums to solar power producers beyond a September deadline but at a lower level.


Under the current scheme, producers receive a premium of about 0.44 euros ($0.692) per kilowatt hour generated by new solar plants, up to a cap of 1,200 megawatts of installed capacity.


The new scheme has yet to be published, but officials have told Reuters they expect new cap and premium would apply until 2010, when they would be reviewed again.


Solar power is part of Spain's ambitious plans to boost renewable energy sources, and the country already has more than 15,000 MW of wind power, enough to provide 30 percent of electricity demand on a windy day.


Industry Minister Migeul Sebastian on Tuesday said energy saving and renewable energy would also help reduce greenhouse emissions and Spain's hefty import bill for fossil fuels at a time when oil prices are soaring and stoking record inflation.

Top-Secrets Machine to Get Energy From Tidal Power

With high oil prices, dwindling fuel supplies and a growing pressure to reduce global warming, governments are looking for brilliant ideas. Why don’t consider the sea? Waves are a powerful source of energy and in the last years a growing attention is producing a wide range of prototypes. Machines of various shapes and sizes are being tested in last years to see how they could capture waves and tides to create “marine” energy.

A new experiment comes from Michele Grassi, researcher at the department of math at the University of Pisa, in the centre of Italy, who built a prototype of a wave-trapping machine.

Submerged, it goes 100mt deep down the water to catch waves’ energy. The problem is that it’s not easy to harness this energy and convert it into electricity in large amounts but the young Italian has conceived different sizes of this revolutionary machine: big and expensive (millions of Euros) able to produce a megawatt of energy and small and cheap (100.000 Euros) with 100 kilowatt able to provide energy to around 30 apartments.

“The machine is different from all the other projects that aim to derive energy out of waves. It can be used in a calm sea as the Mediterranean, even if its efficiency in the ocean could be five times bigger” Grassi said.


While marine energy generators do not emit smoky pollutants or leave behind radioactive waste, these machines are not small or unobtrusive. To draw energy from the ocean, they often need to be rooted on seafloors relatively close to shore, in places that traditionally have not been used for energy generation.


In September the final model of Michele Grassi will be experimented but the waves’ machine has started already to arouse international interests. Despite his green-friendly intention, it’s quite predictable that his biggest opponents will be environmental groups..

Obama and Ethanol: Is it Just About Winning Votes?

Obama is the first candidate in a long time that I have believed in and thought might actually be above politics as usual. With the Democratic nomination cinched, I fear his campaign has moved into tactics designed to win votes that may not truly express his ideals. From faith-based reform to liquid coal, Obama is making blunders that are shaking his liberal base in order to appeal to more moderate voters. His long standing support of corn ethanol subsidies is another example that appears he is selling out for votes, or maybe I have misunderstood him from the start and created an ideal candidate that does not exist.

Ethanol is an alternative biofuel that can be made from corn, sugar cane, or switchgrass. In fact, Henry Ford’s first mass-produced automobile was designed to run off of 100% ethanol, so the fuel has a long history in the car industry. When added to gasoline, ethanol reduces ozone formation by lowering volatile organic compounds and hydrocarbon emissions. This all sounds good, but there is controversy surrounding corn-based ethanol. Michael Grunwald of Time reports that one person could be fed for a year “on the corn needed to fill an ethanol-fueled SUV”. Some research demonstrates that the production of corn ethanol consumes more energy than it yields, and there is concern that corn-based ethanol is raising the price of food, although the USDA denies the increase is significant.


If you’ve ever driven through the midwest, you’ve seen acres upon acres of corn growing in this fertile land. Obama reigns from Illinois, the second largest corn producing state. He has been cozying up to the corn ethanol industry for quite some time. According to Plenty Magazine:


When Obama campaigns in the corn belt, the Times reports, he often brings along his friend Tom Daschle, the former Senate majority leader, who now serves on the boards of three ethanol companies… And Obama himself has cozied up to corn ethanol, courting controversy early in his Senate career by accepting subsidized travel on jets owned by Archer Daniels Midland, the country’s largest ethanol producer.


I don’t have a problem with ethanol per se, but I am concerned that Senator Obama favors corn-based biofuels over other alternatives. Obama supports multibillion dollar subsidies for corn ethanol, as well as a steep 54-cent-a-gallon import tariff on the cheaper and more efficient sugarcane ethanol. This sounds just like politics as usual, instead of looking at what is best for our environment. Obama admits, “Look, I’ve been a strong ethanol supporter because Illinois … is a major corn producer.” Despite these concerns, I still believe Obama is the best candidate.

Venture capitalists go toward the light

Clean-tech venture capitalists have taken a shine to Silicon Valley makers of LEDs and other bright lights, seeing a growing potential for these semiconductor-based light sources in streetlights and parking lots, in concert venues and gymnasiums.


And, soon, in your home.


According to the Cleantech Group, a San Francisco researcher and conference organizer, venture-capital investments into lighting technologies reached $100 million in 2008's first quarter. That ranked behind only biofuel and solar among clean-tech categories.


"The way we light things today uses 25 percent of our energy in the United States," said Alain Harrus, a partner at Crosslink Capital, a San Francisco venture firm with investments in two lighting companies, Fremont's Intematix and Luxim of Sunnyvale. "The opportunity there is to switch to a much more efficient way of using the electricity."


Most consumers know LEDs as the twinkles on their Christmas trees, the numbers on their calculators, the source of light on their cell phones. But they're increasingly found in televisions, medical devices and streetlights. Some suspect they'll soon be used in new homes.


Several Silicon Valley companies - BridgeLux in Sunnyvale, Osram Opto Semiconductor in Santa Clara and Luxim in Sunnyvale - have either gotten major VC funding recently or have spoken publicly about new developments in solid-state lighting.


Investors are trying to find products that use less energy but do the job as well as existing sources.


Or better, said Tony McGettigan, the affable chief executive officer of Luxim.


"Edison's invention to banish the night was one of the most important inventions of the last century," he said during an interview at the company's headquarters. "But the light sources of today aren't exactly doing what you want them to do."


Governments are working to eliminate incandescent bulbs, which are inefficient energy hogs. A bill in California's Assembly to ban the bulbs failed in 2007, but the state has mandated improved lighting efficiency. And the energy bill signed by President Bush late last year requires a nationwide boost in efficiency, which most see as the end of incandescents in the United States.


Compact fluorescent lights, or CFLs, are touted as a replacement, but they contain traces of mercury, must be recycled and the light quality is imperfect, said Mark Swoboda, CEO of BridgeLux.


Advances with LEDs, including better white color and lower prices, have changed the formula, making them an increasingly realistic alternative. "Technology has broken the barrier," he said.


That's attracting lighting companies - big and small, local and global - as well as big customers.


Wal-Mart, which sold more than 100 million CFLs to customers in 2007, is using more LEDs in its stores, said Matt Kistler, the company's director of sustainability.


Coupled with motion sensors, LEDs work well in refrigerators and freezers in Wal-Mart's grocery aisles, he said. They turn on when customers walk by, and turn off when nobody is near. They're cooler than incandescent lights, saving energy. They last longer, so Wal-Mart saves money.


Home Depot shoppers will find a few LED light choices now - landscape lights; stick-on, one-touch light sources; under-counter lighting; even a bulb that fits into a household lamp.


"A lot of people see LEDs as that next great solution," said John Balbach, managing partner of the Cleantech Group. But, he cautioned, LED manufacturing remains in its infancy. It's where the semiconductor industry was a couple of decades ago, he said.


Makers tout the long-term ownership cost of LEDs, and the bulbs do last about 50,000 hours in some applications. They use about one-sixth the energy of incandescent bulbs.


But they cost more initially. And LED makers have to work with lighting fixture manufacturers to incorporate them into new products, and that can take a few years.

In a recent survey consumers said they would be willing to pay more for an LED light - $4.70 per bulb, compared with $3 for a CFL and 50 cents for an incandescent bulb - if it used less electricity and had environmental benefits.

Much of the first-quarter LED investment money went to one company - Luminus, based near Boston. It raised $72 million. But investments continue. Sunnyvale's BridgeLux raised $40 million in April, for instance.


For years, said Michael Siminovitch, director of the California Lighting Technology Center at University of California-Davis, LEDs have been seen as a Holy Grail for energy-efficient lighting.

That time is near, he said. "We've rounded the corner on this. There are a lot of applications today, in both residential and commercial, where it makes better sense to use LEDs."


But, Siminovitch argues, CFLs are an energy-efficient, under-utilized and available light source - penetration is about 15 percent in California homes - before LEDs become fully ready for prime-time.

And, architects and builders need to incorporate daylight into their projects more effectively, he said.

Better Energy gets funding for solar chargers

The spread of solar isn’t limited to rooftops. Solar cells have been creeping into other applications lately, including solar backpacks, a cell phone, and rechargeable lights for the developing world. Now a Berkeley, Calif. company called Better Energy Systems has gotten its first funding for a clever handheld charger.

Better Energy makes the Solio, a “hybrid” charger that incorporates a battery within its design to store power and charge other devices more quickly. When sunshine isn’t available, the Solio can charge itself from a wall socket. Alternately, off-grid users can use solar energy alone; according to the company, an hour of sunshine is good for about 20 minutes of talk time on a cellphone, or 50 minutes of listening to an MP3 player.

The Solio is a tough-looking folding brick that, for most models, goes for about $100. That’s significantly more expensive than chargers from competitors like Devotec and Solar Style, but the design and durability are likely strong selling points for outdoor enthusiasts, along with clever features like a suction cup to affix the charger to windows.

Like D.light Design, Better Energy has been featured on national television, which suggests a growing awareness of solar-powered devices, and with any luck, an extra boost to the market for solar cells. But however many Solios are sold, they isn’t likely to add a great deal to the bottom lines of the average cell makers, who is primarily interested in large home and commercial installations.

However, devices like the Solio could provide a new outlet for high-efficiency silicon cells, which are mostly used now for concentrating solar, provided their price can be brought in line with consumer devices. Along with
other gadgets that have made it to stores, and future applications like Toyota’s solar-cell Prius, there’s a growing set of creative applications for solar cells.

Better Energy’s funding was for $5 million, provided by TBL Capital. The company was founded in London, United Kingdom, and still maintains offices there.

GM to have world's largest rooftop solar system

Solar energy product maker Energy Conversion Devices Inc. said Tuesday it will supply solar cell laminates to General Motors Corp. for the world's largest rooftop power generation system.


Financial terms of the deal were not disclosed.


The company's UNI-Solar thin-film flexible solar laminates will be installed this fall at a 2 million-square foot car plant in Figueruelas, Zaragoza, Spain.


The rooftop system will have about 85,000 solar panels and peak capacity of 12 megawatts -- enough electricity to power 4,575 homes, GM said.


Through its wholly owned subsidiary, United Solar Ovonic LLC, Energy Conversion Devices will supply the solar laminates, which are flexible sheets of solar cells covered in a plastic-like material.


GM will lease its roof space to Clairvoyant Energy SL and Veolia Environnement. The companies will build, own and operate the rooftop solar installation.


The Zaragoza plant builds Opel cars for the European marketplace.

Turning Trash Into Treasure: How Diverting Waste is the Ultimate Act of Sustainability

The clock is ticking. On Wednesday, I am to shoot a segment for the Sust Enable film project in which I construct a draft box (alternative to a refrigerator), solar cooker (alternative to a stove/oven), and hot water solar shower, in order to illustrate how easy and cheap it is to build such items for the average person. Once applied, these technologies can divert significant amounts of energy that would normally come from the plugs in your home, to free energy provided by the sun and wind. (Of course, the issue of winter and weather conditions arises, but I believe that every little applied creative technology helps in the approach toward sustainable living.)


But there is one obstacle looming… can I overcome it in the hours before the shoot begins?

How do I sustainably acquire the necessary materials?


If I am claiming to live a 100% sustainable lifestyle, then certainly I cannot acquire anything new–all supplies must be redeemed from the waste stream of others. Or must they? I began to realize that the likelihood of me garbage-picking a 55-gallon drum, spigots, fixtures, tools, aluminum foil and black hose was rather slim in the time frame given, and with the transportation resources I have (i.e., a bike).


Hence, I must consider the tradeoff of my actions as thoroughly as I can. What are the consequences of the manufacturing of a metal spigot, bought new from Home Depot? What’s the tradeoff if I were to continue to use conventional hot water heaters for all of my showers for the next few years of my life? …Ah. Maybe I can be a little less strict with myself!


Nevertheless, there are shockingly abundant resources for ANY home sustainability project you wish to undertake. All you have to do is learn to look in the right places first! And, these resources are completely free. People seem shocked to hear that my cost of living is under $100 a month. But when you are trying to live sustainably, operating without superfluous commodities becomes a given (also discussed in Food Not Lawns, under “Quit Your Job”)! But that’s another post…


There is nothing more sustainable than trying to get the most use out of the embodied energy of any material. That means: if you’ve got an old cupboard you don’t have a place for anymore, don’t smash it and use it as firewood! Countless gallons of water and petroleum went into turning that wood into a cupboard, so brainstorm other ways to use it in its high-energy state, or give to someone who can use it. In Cradle to Cradle, the authors talk about how recycling materials often results in “downcycling”–where the subsequent use of the material results in low-grade, un-recyclable products. Since this is the current state of design, recycling is nowhere near “sustainable.” On the other hand, reusing materials and not thinking of them as “waste” leads to a more ecologically-responsible lifestyle.


Last night, an old garden hose was coiled up on a neighbor’s garbage pile, awaiting the morning’s collection truck. Instead, it found a new home and a new use with me (see it in the Solar Shower segment). Anything you dream, you can create… and using found & available materials makes it all the more specific, original, and creative!

Here are some tips for where you can find just about anything you need.


  • “Garbage picking” in affluent neighborhoods. This is by far the most successful means of acquiring excellent materials. Simply driving or biking around the streets on trash night (easily determined on the Internet), I have spotted a solid wooden draft table, soundproof foam, gardening supplies, a mint-condition armchair… even a child’s scooter! The neighborhoods don’t have to be affluent either, but I think you’ll find that the rate of good materials is higher on a house-to-house basis in such neighborhoods. Shame on them for being so wasteful… but good for you and your projects.
  • Freecycle or the “Free” section on Craigslist. Dozens of furniture items, building materials, and miscellaneous household stuff are being given away right now in your neighborhhood on these online forums! For FREE! When was the last time you could get loads of lumber for free? Also, check out the barter and other sections for good deals.
  • Dumpsters. Ever driven around to the back of a grocery store or a strip mall? Well, it’s time to start. I have found clothes, picture frames, CD racks, notebooks, food (of course), and even a printer… all sorts of usable, high-quality materials that for some reason had gone “out of date” with the store supplying them. Hours earlier you could have purchased that printer… now, it’s yours for the taking.
  • Tag sales. Sometimes people just don’t know what goodies they are tossing out.
  • Free box. Some community projects, especially cooperatives, may offer a free box. Common items incude clothing, slightly damaged tools, and miscellaneous small items.
  • Wholesalers. Occasionally you will find large, unusual items from food distributors, retailers, supply stores, etc. This includes 55-gallon drums. And don’t forget…
  • The Junkyard! Want to build a wind turbine for home use? It’s a pretty simple procedure… and it requires a car alternator. Get one for a couple bucks at a junk yard! Your mind will run wild with schemes for using some of the awesome, bizarre objects they offer.

Lastly, if you have a deadline (like I do), and must pay for your reclaimed materials, then do so at a reuse warehouse like that of Construction Junction in Pittsburgh, PA. Construction Junction “promotes conservation through the reuse of building materials.” They collect an assortment of materials from home remodeling, building demolitions, etc., thus diverting valuable resources from the landfill. The store looks not unlike Home Depot, but all of the contents had a life before they arrived, and will have a life again in your project.


The vast, serious issue of environmental degradation requires creativity, gumption, and flexibility. In my opinion, the best way to exercise all three of these is to get a-garbage pickin’! When you come home with a car full of veggies (from a broken-down cooler at a grocery chain), a whole patio set and some paint cans (from a neighbor’s curbside), then we can talk about getting creative! In my experience with dumpster diving for food, you can never count on exactly what kinds of food will be thrown out. You can, however, swear by its abundance.

Five Refreshing, No-Calorie Ways To Dress Up Water

It’s getting hot in St Louis. Not just hot, but stiflingly humid. It’s impossible to not sweat. It’s days like this where it’s more important than ever to remain hydrated, but plain water just doesn’t cut it sometimes, and it doesn’t have to. You don’t need to turn to a HFCS-laden soda to find a tasty summer beverage. Here’s five easy, refreshing, and practically no-calorie ways to dress up your refrigerator’s cold water pitcher, providing much-needed flavor when you’re trying to beat the heat.

1. Add a sliced cucumber and lemon to your water pitcher for a subtle, yet incredibly refreshing, flavor.


2. Slice a tablespoon or two of fresh ginger and two small limes into your water pitcher for a cooler with a kick to it.


3. You absolutely can’t go wrong with mint tea. Add three mint tea bags to a pitcher of water. Let steep in the sun for a few hours. Chill in fridge.


4. Muddle a sliced orange in a large pitcher. Add a teaspoon of vanilla extract. Add water and ice. Reminisce of youth spent eating dreamsicles.


5. Check out Jennie’s Lavender Lemon Soda recipe for a carbonated treat.


Need something sweeter? Add a touch of honey or raw sugar to any of the above.

Looks To Change Electric Car Laws

(Image Courtesy Of Google Images)

Some Kentucky lawmakers are looking to change laws that ban low-speed electric cars from the state's roads.


Right now electric cars that reach speeds between 25 and 40 miles-per-hour are not allowed on the road. In this coming January, a western Kentucky legislator plans to sponsor a bill that will change that.


If the bill is passed, it will allow electric cars that can reach speeds of 45 miles-per-hour to be driven on Kentucky roadways.

New Washing Machine Cleans With Plastic, Not Water

Water-efficient washing machines could be relics of the past should a new machine that uses plastic chips pan out. Friction and solvent are the main ingredients of getting clothes clean, and the Xeros may be the most efficient machine to utilize these two elements and minimize the role of water. The Xeros uses less than 2% of the water and energy of a conventional washing machine, using just one cup of water, a little detergent, and thousands of reusable plastic chips (as the “solid solvent”) to beat the clothes clean and absorb stains.


Basically, a user throws clothes in and starts the load, then a cartridge in the back of the machine drops in the plastic chips, and a cup of water including detergent is added. The water dissolves the stains and dirt, which is then absorbed by the chips. At the end of the cycle, a grill at the bottom of the machine opens to collect the chips. The process leaves clothes nearly dry, so using a dryer is not necessary.


Tests from the University of Leeds show that the machine can get rid of all kinds of everyday stains, making it as cleanly as a washing machine, and the chips can be used up to 100 times, which adds up to about six months worth of washing. Xeros Ltd hopes they can get the machine on the UK market by 2009 for washing and dry-cleaning companies, and already has nearly $1 million in investment money from IP Group Plc.


It’ll still be awhile before we see if the method really pans out for the average consumer, and what I have yet to find out is if the chips themselves are environmentally friendly, what they’re made of, and what happens to them after that 100th load. And I’m also wondering how well that grill will work because I can just imagine finding these scattered throughout your house, your sock and underwear drawer, your pockets…But the system is already getting compared to the Dyson bagless vacuum cleaner, which seemed really off the wall at the time yet worked out wonderfully.


Considering the many gadgets and alternatives created to make washing machines more clean and efficient, it’s clear we’re ready for a revolutionary solution. I’m hoping these machines turn out to be everything the creators make it out to be.

Canadian Solar Signs Wafer Supply Agreement

Canadian Solar Inc. (CSI) announced that it has signed a ten-year supply contract with LDK Solar, a manufacturer of multi-crystalline and mono-crystalline solar wafers. LDK expects to begin the ramp up of its in-house polysilicon manufacturing project in the second half of 2008.

LDK is already one of CSI's biggest suppliers and under the terms of the new agreement, LDK will supply an additional 800 megawatts (MW) of solar wafers to CSI through 2018. Delivery under the new agreement is expected to start in July 2009, with approximately 40 MW being shipped in 2009 and approximately 80 MW annually in 2010 and beyond.

"We are excited to sign this new contract with CSI.” said Xiaofeng Peng, chairman and CEO of LDK Solar. “By combining our solar wafer manufacturing capabilities with CSI's market leading cell, module and custom-designed applications, we are able to deliver a dynamic, integrated and effective solution."

Wells Fargo Finances Solar at USCF; Offers Better Solar Loans

MMA Renewable Ventures LLC, and Wells Fargo & Company announced a new solar energy system in San Francisco that is providing renewable power to the Mission Bay campus of the University of California at San Francisco (UCSF).

MMA Renewable Ventures owns and operates the 250-kilowatt (kW) system through a long-term Power Purchase Agreement (PPA) with UCSF. Wells Fargo helped to finance the system. Chevron Energy Solutions, a Chevron subsidiary, designed and installed the system.

"UCSF has demonstrated a deep-seated commitment to environmental sustainability throughout the growth of its new Mission Bay campus," said Matt Cheney, CEO of MMA Renewable Ventures. "Through the long-term PPA arrangement, the university is able to go solar without the upfront installation cost or ongoing maintenance expenses, allowing UCSF to direct its valuable resources to education and critical research rather than a new solar energy system."

In a related story, Wells Fargo Home Mortgage it is now marketing a new construction solar home program. Wells Fargo will let home builders pass the state's solar rebate directly to buyers at loan closing to use with their down payment or as a permanent interest-rate buy down to lower monthly payments. In the past, builders would simply reduce the price of a house by the amount of the state rebate offered by the California Energy Commission's New Solar Home Partnership and other utility solar rebate programs.

The solar home program is available on conforming and non-conforming loans for single-family, primary residences, including detached homes and condominiums. The amount of the rebate is tied to the size of the solar energy system built into the new home.

"Our new solar home offering is part of our larger strategy to support business opportunities that help address climate change, increase energy and resource efficiency and spur a transition toward a sustainable energy economy," said Mary Wenzel, Wells Fargo head of Environmental Affairs. "Through our investments and products, we are proud to support an increasing number of customers who want to take advantage of clean, renewable energy and California's goal to have one million solar roofs in the state by 2018."

Hawaii Mandates Solar Hot Water

Solar water heaters are far more efficient and have a much shorter payback period than do solar photovoltaic systems. Getting heat from direct solar radiation is extremely simple (just step outside on a sunny day), and can be done with far less complex systems than what solar PV requires.

Starting in 2010 all single family homes in Hawaii will be required to have solar hot water heaters. A bill signed by the state’s Republican governor, Linda Lingle, makes the state the first to require solar hot water for all new residences.


“Hawaii relies on imported fossil fuels more than any other state, with about 90 percent of its energy sources coming from foreign countries, according to state data.” - ENN


A non-freezing climate like Hawaii does not even require the additional equipment needed to prevent freezing, as is needed in many other states in the continental US. While solar hot water would seem to be a no-brainer for Hawaii, it can be reasonably cost effective even in cold weather states.


Rather than circulating the water directly, solar hot water systems either use an anti-freeze solution circulating in the lines, and then transfer the heat to the water with a heat exchanger. Or, solar hot water systems can be set up to drain back and empty the system on cold winter nights to prevent freezing, and only circulate water through the system when conditions are favorable.

Where’s All the World’s Food?

Nothing could be as much a mirror of poor people’s food plight today as Thai farmers reportedly conducting armed vigils in their rice fields at night to prevent thieves from reaping the crop.

As a measure against nocturnal rice thefts, Thai authorities introduced a six o’clock p.m. curfew on combine harvesters, vehicles used to harvest the crop.


In Thailand, as in many parts of Asia, the price of rice has gone up dramatically in recent months tempting greedy and corrupt dealers to use any means available to get a hold of the pricey grain for either sell or hoarding. In fact, the hoarding of rice has been blamed for the price spirals forcing governments to impose buying rations.


According to the Asia Development Bank (ADB), approximately 1 billion Asians need assistance to cope with soaring food prices and shortages.


The purchasing power of many of Asia’s poor has been seriously eroded reversing previous gains made in fighting poverty.


The International Herald Tribune describes rice, a staple food for half of the global population, as one of the “world’s most politically fragile crop.”


Like the price of rice, general food prices are on the rise in many parts of the world, forcing poor people to protest - sometimes violently - against governments.


Food riots have erupted in countries such as Haiti, Cameroon, Egypt, Indonesia, Senegal and Somalia, among others, threatening national stability or exacerbating conflict. Poor people, particularly children and those living with diseases, face the risk of malnutrition or death due to inadequate diets.


“It’s the worst crisis of its kind in more than 30 years,” Jeffrey Sachs, an economist and UN special adviser recently told The New York Times. “It’s a big deal and it’s obviously threatening a lot of governments. There are a number of governments on the ropes, and I think there’s more political fallout to come.”


Experts say that food reserves are at their lowest in 35 years, and there is a systemic imbalance between the forces of supply and demand that cannot be fixed in the short term. UN statistics show that global food prices have risen by 65 percent since 2002 to levels increasingly beyond the reach of the poor.


The current food quagmire has been festering over the years with little to no media attention.


“In the seven of the last eight years consumption has exceeded production, which can happen only if we draw down our stocks. The carryover, the grain in the bin when a new harvest begins, is the seminal indicator of food security, and it’s now down to 54 days consumption, not much than is needed to fill the supply line,” says Lester Brown, president of the Earth Policy Institute.


Nearly 1.7 billion people in Asia - three times the population of Europe - live on less than US$2 a day, and to them the spiraling food prices are like a shockwave.


“The world’s food import bill will rise in 2007 to $745 billion, up 21% from last year, the FAO estimated in its biannual Food Outlook. In developing countries, costs will go up by a quarter to nearly $233 billion,” reports Time Magazine.


Asia’s poor are particularly vulnerable to rising food prices for staples such as rice because 60 percent of their spending goes toward food and the figure rises to 75 percent if transport costs are included, according to the ADB.


Many countries in the region have resorted to banning food exports and imposing price controls; however, the ADB warns that this could worsen the crisis, as farmers will stop growing crops that bring a negative return on investment.


An assortment of causes have been cited for the ongoing food crisis from climate change, population growth, increased consumption of meat in Asia, particularly India and China, a ballooning oil price, focus on bio-fuels to greed and corruption.


According to experts, the transportation of specific commodities over long distances chews up a lot of oil, which in a context of a skyrocketing oil price is responsible for the food price hikes.


Also, the fact that many people in Asia and other parts of the world now eat like North Americans is also an underlying factor for the upward spiral of food prices. The more people eat meat, the less food will be available to satiate empty bellies of the poor because grains meant for human beings go to fattening chickens and animals for meat.


Continued growth in meat output is dependent on feeding grain to animals, creating competition for grain between affluent meat-eaters and the world’s poor, says the World Watch Institute.


In addition, the increased commercialization of agriculture has negatively impacted the productivity of small farmers. Consequently, small farmers opt to abandon the land, and trek to urban areas in search of proverbial greener pastures.


According to a United Nations Population Fund (UNPFA) report between 2000 and 2030, Asia’s urban population is expected to increase from 1.36 billion to 2.64 billion, putting pressure on urban areas which are already incapable of meeting everyone’s food needs.


As the Asian food story reveals, to avert a global food crisis requires a multi-disciplinary and multi-dimensional approach that employs short term and long-term measures.


In the short term, bilateral and multi-lateral agencies can lend monetary support and food aid to help seriously affected countries cope with the food crisis. While government subsidies can help the poor to withstand the food crisis, it is not a sustainable strategy in the long-term.


National governments will need to invest in agricultural systems in a manner that keeps small farmers engaged in the production of food with a guarantee of support, fair compensation and improved access to market information.

Next-Gen Prius to Get Solar Panels

According to several reports, Toyota’s next-generation Prius, due out next year, will have the option for solar panels on its roof. Japanese newspaper Nikkei and Reuters are reporting that Kyocera will provide the solar panels, which would be able to power part of the 2- to 5-kilowatt air conditioning system.


But solar panels are generally more a symbol of green than an important power source. Reuters quotes a source who says the solar panels for the next-gen Prius are “more of a symbolic gesture,” as “it’s very difficult to power much more than that with solar energy.” According to this white paper a solar-powered Prius could drive between 5 to 8 miles on solar power alone, which could actually reduce gas consumption by 17 to 29 percent.


Solar-powered vehicles are not a new idea, and there are a variety of prototypes of alternative vehicles that have been designed with solar panels to provide extra green power, like this one out of Taiwan. But, as Marketwatch notes, Toyota’s Solar Prius “will make Toyota the first major automaker to install a popular model with solar panels.” In that sense, the fact that Toyota is adding solar as an option is notable.

Solar Energy Creating Economic Boom for Nevada

The American Southwest has some of the best solar resources on the globe. Nevada, with abundant land and sunshine is becoming a hot bed for the solar industry. The result is green jobs and billions of investment dollars.



Solar Panel Manufacturing



The opening of Ausra’s solar thermal power factory earlier this week in Las Vegas is a prime example. As the largest plant of its kind in the world, it employs 50 factory workers. At full capacity, the plant can generate 700 MW of solar panels, which could produce enough power for 500,000 homes. This quantity of panels would create an estimated 1,400 solar plant construction jobs.


The factory will produce giant mirrors and absorber tubes that are used for solar power plants. This technology uses the sun to generate heat and spin turbines, thus creating electricity. The giant mirrors follow the sun and reflect it onto fixed absorber tubes that are mounted above.


“Nevada is poised to be a leader in the clean energy revolution,” said U.S. Senate Majority Leader Harry Reid (D-NV). “This facility will help position our state as the premiere place to invest in these new technologies. As the factory expands operations and we continue to invest in clean energy, we’ll create thousands of good-paying jobs and keep our outdoors pristine for future generations.”


Solar Power Plants



Solar projects totaling more than 10,000 MW have land requests from the Bureau of Land Management in Southern Nevada. If constructed, these solar plants would bring over $40 billion of investment to Nevada.


Power plants benefit the economy in the short-term by creating large quantities of construction jobs. In the long-term, they create plant operations jobs, tax revenue, raise property values, and generate income through land leases. A recent example is Acciona’s Nevada Solar One, located in Boulder City, NV.


As the third largest solar concentrated plant in the world, its maximum output is 75 MW of electricity. It generates enough power for 15,000 homes annually and had a cost of $260 million. Operating since June, 2007, there are 300 acres of solar fields. The plant will produce peak power, with nearly zero carbon emissions and created approximately 28 operations related jobs.

Easy Recycling of Compact Fluorescent Light Bulbs

CFL light bulb

Compact fluorescent light bulbs (CFLs) use 75 percent less electricity than incandescent light bulbs for the same amount of light. (For why, see Bill’s post “Why Switch to Compact Fluorescents“.) But some people fear CFLs because of the tiny amount of mercury they contain. The risk from a broken CFL is extremely small, but CFLs should be disposed of properly so landfills aren’t polluted. Sealing used bulbs in plastic bags before placing them in the trash can slow the release of mercury if the bulb breaks. But recycling is ideal.


The problem, until now, has been that recycling CFLs was inconvenient for post people. That’s about to change, thanks to Home Depot. The New York Times reported this week that Home Depot will offer CFL recycling at all of its nearly 2000 U.S. stores. That puts 75 percent of Americans within 10 miles of a CFL recycling location.


If you’re not part of that 75 percent, you still have options. Ikea stores provide CFL recycling bins, as well. Or visit Earth 911 or Lamp Recycle to look for a recycling location near you.

Biofuels caused food crisis according to secret report

According to a secret World Bank report obtained by the Guardian biofuels have increased global food prices by up to 75%. The report dismisses the idea that droughts in Australia and rising demand from India and China has caused the rising food costs. The report instead claims that “the EU and US drive for biofuels has had by far the biggest impact on food supply and prices”.


“Political leaders seem intent on suppressing and ignoring the strong evidence that biofuels are a major factor in recent food price rises,” said Robert Bailey, policy adviser at Oxfam. “It is imperative that we have the full picture. While politicians concentrate on keeping industry lobbies happy, people in poor countries cannot afford enough to eat.”


Rising food prices have pushed 100m people worldwide below the poverty line, estimates the World Bank, and have sparked riots from Bangladesh to Egypt. Government ministers here have described higher food and fuel prices as “the first real economic crisis of globalisation”.


The report “would put the World Bank in a political hot-spot with the White House.” The US government claims that biofuels only contribute to about 3% in increased food prices. Senior development sources have said that the report “has not been published to avoid embarrassing President George Bush.”


But it’s not just USA who should feel embarrassed by the findings in the report. The European Union is also a big player in the biofuel world.


Recently the European Environment Agency’s (EEA) Scientific Committee called for the suspension of EU’s target to increase the share of biofuels used in transportation to 10% by 2020. The committee has called for a new, “comprehensive scientific study on the environmental risks and benefits of biofuels” before any targets should be set.


And it wasn’t long ago Jean Ziegler, UN’s special rapporteur on the right to food, called for the suspension of biofuels production saying biofuels are a “crime against humanity.” And before that, Finance Indian Finance Minister P. Chidambaram said that “it is “outrageous” that developed countries are turning food crops into biofuels while billions of people in the developing countries are living on the edge and trying to cope with escalating food prices”.


And even more pressure is expected to come from the British governments own report on the impact of biofuels, the Gallagher Report.


“The Guardian has previously reported that the British study will state that plant fuels have played a “significant” part in pushing up food prices to record levels. Although it was expected last week, the report has still not been released.”

Cell Phone Companies Go Green to Cut Power Costs

The rising cost of powering a data center — not “saving the environment” — has been behind a good deal of the greening of information technology. A report out today from ABI Research says cell phone carriers are facing a similar cost problem and are trying to do something about it.


ABI Research VP Stuart Carlaw said in a release touting the report:


“Although reducing power consumption provides good ecological credentials for carriers and vendors alike, the real driver for improving power consumption is financial.”

The report suggests carriers should work on reducing power consumption by the base stations inside each cell tower that transmit and receive wireless signals from mobile phones. Such efforts could save carriers a sizable 43 percent on power costs from 2007 to 2013 and will start to make a dent in spiraling operations costs by 2012.

Other greener options include using alternative energy, such as solar or wind, to power cell tower sites rather than conventional electricity or diesel generators.

MONITOR SAMSUG 943NWX 19 PULGADAS

The state of Hawaii has become the first in North America to require solar water heaters in new homes. The bill, signed into law by Republican Governor Linda Lingle this week, prohibits issuing building permits for single-family homes that do not have solar water heaters.

All new homes will be required to have the energy-saving systems installed starting in 2010. Exceptions will be made for houses in heavily forested areas. But the move to force solar heating is a big step for a state that relies heavily on imported fossil fuels for 90% of its supply.


Conventional water heaters are typically the largest electricity consumer in the average household, gobbling up nearly 40% of consumption. The measure was first introduced five years ago when a barrel of oil cost just $40. Since then, the price has more than tripled. Solar water heaters can be complex systems or simple cheap models. Here’s how you make one for $5. The government also has a good site on how solar water heaters work.


Not surprisingly, builders and developers were against the bill, saying it would add too much to the cost of new home constructions. But surprisingly, another opponent was the Hawaii Solar Energy Association. Last April, in a story in the Star Bulletin, Ron Richmond, with the association, said the new legislation would cost homebuyers about $2,100 more to have the solar water heaters installed. The average solar water heater, according to the article, currently costs about $5,250, before rebates.

Experts Say China’s Wind Energy Could Grow 1667% by 2020

At present, China produces just over 6 gigawatts (GW) of wind energy, making it 5th in the world for total wind energy. (Germany leads with 22.2 GW.) However, with China’s massive push for 21st Century renewable technologies, we shouldn’t be surprised if China achieves 100 GW by 2020 say energy experts.

China is already outpacing its own wind energy goals.



Officially, China’s latest renewable energy plan sets a goal of 10 GW by 2010. That’s double the previous target. However, according to industry analysts at China Strategies LLC, China’s current pace of wind development will bring 10 GW by the end of this year, two years ahead of schedule. According to China Strategies, 20 GW is possible in China by 2010. What’s more, they foresee a total of 100 GW by 2020, an increase in wind energy of 1667%. And, they add, this may be a conservative estimate.


These figures should make critics of China’s energy policies think twice. On the one hand, China still relies heavily on polluting coal to power its factories and make the inexpensive goods that many people have come to expect. On the other hand, China is making significant strides to adopt renewable energy technologies.


The China Economic Review quotes Richard Spencer of the World Bank, who worked on one $13 million wind project as saying, “China is working very hard to reduce its dependence on coal, and it looks to nuclear, hydro and wind, particularly, to replace coal. Wind is very important.”


How will China make the switch to clean energy? One answer was the 2005 Renewable Energy Law, which required utilities to buy renewable energy. Such legislation is an important part of the answer. Similar legislation in California has encouraged major investment in wind and solar. But an underlying question remains: can China continue its recent rate of growth in the renewable energy field?


If so, the Middle Kingdom is poised to increase its percentage of wind energy from less than one percent to about 20% by 2020 says Steve Sawyer, secretary general of the Global Wind Energy Council, in the China Economic Review. For those keeping track of the economic competition between the US and China, that would set China dramatically ahead of the US goal of 5-6% by 2020.

U.S. Could Get Ten Million Solar Roofs in Ten Years

U.S. Senator Bernie Saunders (I-VT) has introduced a Bill to the Senate that would help homeowners to slash the cost of installing solar panels. The 10 Million Solar Roofs Act of 2008 will offer rebates for up to half the cost of installing solar photovoltaic systems, and run for ten years. A wide range of people and organizations, including homeowners, businesses, non-profit organizations, state and local governments will be eligible to apply.


The Bill will be formally introduced when the Senate reconvenes on Monday following the 4th July recess. Co-sponsors come from across the political spectrum, including Senators John Kerry (D-MA), Ben Cardon (D-MD), Arlen Specter (R-PA), John Warner (R-VA), and Robert Menendez (D-NJ). The proposal looks very similar to an initiative launched in San Francisco late last month that will provide rebates of $3,000 to $6,000 in the largest city-wide solar promotion scheme in the U.S.


The past few weeks have been quite tumultuous for the solar energy industry. Firstly, the Senate voted to block progress on a bill designed to introduce $17.7 billion of tax breaks for the renewables industry. Shortly afterwards, to howls of protest from solar energy industry, the Bureau of Land Management (BLM) introduced a twenty two month moratorium on new solar projects on public land, in order to properly assess their environmental credentials. A few days later, they decided to reverse the decision. Last week also brought news of the introduction of a Democrat-backed Bill to introduce a national feed-in tariff for renewable energy projects. Phew! things are moving on rapidly in the world of solar - I wonder what next week will bring?

U.S. Could Get Ten Million Solar Roofs in Ten Years

U.S. Senator Bernie Saunders (I-VT) has introduced a Bill to the Senate that would help homeowners to slash the cost of installing solar panels. The 10 Million Solar Roofs Act of 2008 will offer rebates for up to half the cost of installing solar photovoltaic systems, and run for ten years. A wide range of people and organizations, including homeowners, businesses, non-profit organizations, state and local governments will be eligible to apply.

The Bill will be formally introduced when the Senate reconvenes on Monday following the 4th July recess. Co-sponsors come from across the political spectrum, including Senators John Kerry (D-MA), Ben Cardon (D-MD), Arlen Specter (R-PA), John Warner (R-VA), and Robert Menendez (D-NJ). The proposal looks very similar to an initiative launched in San Francisco late last month that will provide rebates of $3,000 to $6,000 in the largest city-wide solar promotion scheme in the U.S.

The past few weeks have been quite tumultuous for the solar energy industry. Firstly, the Senate voted to block progress on a bill designed to introduce $17.7 billion of tax breaks for the renewables industry. Shortly afterwards, to howls of protest from solar energy industry, the Bureau of Land Management (BLM) introduced a twenty two month moratorium on new solar projects on public land, in order to properly assess their environmental credentials. A few days later, they decided to reverse the decision. Last week also brought news of the introduction of a Democrat-backed Bill to introduce a national feed-in tariff for renewable energy projects. Phew! things are moving on rapidly in the world of solar - I wonder what next week will bring?

Garbage In, Megawatts Out

This week, city counselors in Ottawa, Ontario, unanimously approved a new waste-to-energy facility that will turn 400 metric tons of garbage per day into 21 megawatts of net electricity--enough to power about 19,000 homes. Rather than burning trash to generate heat, as with an incinerator, the facility proposed by Ottawa-based PlascoEnergy Group employs electric-plasma torches to gasify the municipal waste and enlist the gas to generate electricity.


A few waste-to-energy gasification plants have been built in Europe and Asia, where landfilling is more difficult and energy has historically been more costly. But PlascoEnergy's plant would be the first large facility of its kind in North America. The company's profitability hinges on its ability to use a cooler gasification process to lower costs, as well as on rising energy and tipping fees to ensure strong revenues.


PlascoEnergy's approval marked the latest in a string of positive developments for waste gasification projects in recent weeks. Last month, Hawaii okayed $100 million in bonds to finance a waste-to-energy plant using plasma-torch technology from Westinghouse Plasma, based in Madison, PA, that is already employed in two large Japanese waste processing plants. Meanwhile, Boston-based competitor Ze-gen reported the successful ramp-up of a 10-metric-ton-per-day pilot plant in New Bedford, MA, that uses molten iron to break down waste.


Most gasification plants work by subjecting waste to extreme heat in the absence of oxygen. Under these conditions, the waste breaks down to yield a blend of hydrogen and carbon monoxide called syngas that can be burned in turbines and engines. What has held back the technology in North America is high operating costs. Plasma plants, using powerful electrical currents to produce a superhot plasma that catalyzes waste breakdown, tend to consume most of the energy they generate. As a result, the focus of plasma gasification plants has been to simply destroy hazardous wastes. "There was really no thought of being able to produce net power," says PlascoEnergy CEO Rod Bryden.


PlascoEnergy started looking at gasification for municipal solid waste five years ago, when it determined through simulation that cooler plasma torches could do the job. "The amount of heat required to separate gases from solids was much less than the amount being delivered when the purpose was simply to destroy the material," says Bryden. PlascoEnergy tested the models on its five-metric-ton-per-day pilot plant in Castellgali, Spain (jointly operated with Hera Holdings, Spain's second largest waste handler). In January, the company began large-scale trials in a 100-metric-ton-per-day demonstration plant built in partnership with the city of Ottawa. >> 2

Are Prince Charles and Richard Branson really setting good examples?

Prince Charles earned some good grades on his climate report card this week. The carbon footprint of the heir to the British throne dropped 18 percent in the last financial year after he reduced travel-related emissions through projects like converting an Aston Martin sports car to run on biofuel made from surplus British wine.


Likewise, Richard Branson, the billionaire British businessman and chairman of the Virgin Group of companies, is pursuing worthy projects.


Branson recently told reporters that his private Caribbean islands can lead the globe in renewable alternatives to carbon fuels. He described plans to transform his latest purchase, Mosquito Island, into the most environmentally friendly resort on the globe by introducing biofuel-powered beach buggies and ensuring that all food is locally grown.


Both Prince Charles and Branson are champions of efforts to clean up the environment by funding innovative programs and by reducing the amount of dirty fuels used in cars and airplanes.


To offset his remaining emissions, Prince Charles finances several ecological projects. Branson has flown one of his Virgin Atlantic jets partly with biofuels to demonstrate one way the airline industry can reduce its carbon footprint. Even so, Prince Charles still drives an old and heavy sports car and regularly jets to function across the globe. Branson still operates a travel empire that thrives on the growing appetite for high-end intercontinental tourism.


Should we be praising the efforts made by the likes of Prince Charles and Branson? Or should we be pressuring them to do more to change the ways they do their jobs and earn a living?

Eco-friendly Fireworks And Flares Poised To Light Up The Sky

From the rockets' red glare to bombs bursting in air, researchers are developing more environmentally friendly fireworks and flares to light up the night sky while minimizing potential health risks, according to an article scheduled for the June 30 issue of Chemical & Engineering News. Some eco-friendly fireworks may soon appear at a Fourth of July display or rock concert near you.


In the C&EN cover story, Associate Editor Bethany Halford points out that fireworks, flares and other so-called pyrotechnics commonly include potassium perchlorate to speed up the fuel-burning process. But some studies have linked perchlorate, which can accumulate in the soil, air and water, to thyroid damage. Pyrotechnics also contain color-producing heavy metals, such as barium and copper, which have also been linked to toxic effects.


Researchers recently developed new pyrotechnic formulas that replace perchlorate with nitrogen-rich materials or nitrocellulose that burn cleaner and produce less smoke. At the same time, these nitrogen-rich formulas also use fewer color-producing chemicals, dramatically cutting down on the amount of heavy metals used and lowering their potentially toxic effects. Some of these fireworks are already being used at circuses, rock concerts, and other events.


The big challenge in developing these "eco-friendly" pyrotechnics is making them as cost-effective as conventional fireworks while maintaining their dazzle and glow, the article states.

The start-up company, which raised $6.5 million in funding earlier this year, has built a "microinverter" that converts a solar electric panel's direc

Cyclone Power Technologies has developed a new Waste Heat Engine (the WHE, or, as I like to say, WHEeeeeeeee!), capable of running on waste heat from any source, even those with lower temperatures. Sources can include the sun, a running engine, or exhaust among many others. The 12 cylinder engine is on the large size, taking up 155 cubic inches, and it gets about 20 horsepower. While somewhat clunky, it’s much smaller than other waste heat-based power generators we’ve seen, and can be used on much smaller scales.

Cyclone Power Technologies says the WHE can be used to boost power in gas- and diesel-powered generators, helping to increase power and decrease fuel consumption. They also say it can be connected to solar panels on residential homes to provide a source of power like a back-up generator, costing about 20% of the installation costs of standard photovoltaic systems.


With the ability to run on practically any waste heat source, the versatility of the WHE is promising. Catch a video of the product and see it in action.

Microinverters track solar panels via the Web

The start-up company, which raised $6.5 million in funding earlier this year, has built a "microinverter" that converts a solar electric panel's direct current to alternating current on the panel.


Inverters are typically separate devices that are hung outside or in a basement. By placing an inverter right on a panel, Enphase Energy says that it is more efficient at converting light to electricity.


In addition, the microinverters give panel owners a better means for monitoring the performance of individual panels.


The company also has a gateway that transfers panel performance data which is displayed on a Web site.


Its design has garnered high praise from University of California at Berkeley professor Dan Kammen who is director of the Renewable and Appropriate Energy Laboratory. In a statement, he called microinverters "disruptive technology" and said, "I think this is, in some sense, the most important technological breakthrough solar has ever seen."


Solar installer Borrego Solar beta-tested the microinverter system at residential sites and intends to use it.

Solar Panels in Panama City

With the warm weather hitting us, staying cool is always a priority for Florida homeowners.


Panama City Beach homeowner Charles Lyle installed solar panels in his home just a few months ago, and says he thinks the savings outweigh the cost.


Like many homeowners, Charles Lyle was tired of paying a lot of money to stay cool during the summer.


Charles Lyle said, "For me with my two dogs and a cat, I was paying $300 a month in electricity during the summer and wanted to do what I could to get that reduced."


After searching the Internet, Charles decided to have solar panels installed in his home. The cost was $28,000 for the panels and the installation. Ouch! But luckily, state and federal tax rebates helped pay $22,000 of the bill.


"It was a little more than $6,000 out-of-pocket and it saves me about $80 a month on electricity and it will increase the value of the house $10,000 to $15,000."


A box in the garage tells Charles how much energy he's producing, and everyday as the sun comes up, Charles says you can literally see the panels saving energy when the electric meter stops and then starts rotating backwards.


"As you see, the little dial goes backwards and the numbers start going backwards, and in your mind it's like seeing little dollar signs flash up and down."


Charles says one tip in buying the panels is to do your research. Since it's a new trend, he says the installation cost can differ greatly from business to business, so make sure you get a couple different estimates.

Land Conservancy eyes B.C.'s largest solar panel project

Greater Victoria could soon be home to the province's largest solar panel project.


The Land Conservancy of B.C. is proposing to cover the south side and roof of its three-storey office building at 1195 Esquimalt Rd. with 60 solar panels.


The alternative energy source would provide the commercial space with 11 kilowatts of power — enough to run 2,200 compact fluorescent lights.


"We are trying to make this a demonstration project," said Ian Fawcett, Land Conservancy of B.C. deputy executive director.


With the approval of the landlord and the partnership of B.C.-based Day4 Energy Inc. the land conservancy hopes to set an example of cost-saving alternatives local companies can imitate.


The project is estimated to cost $90,000, the lion's share of that for the solar panels. The solar panels will also be used as shades on the building to lower the amount of energy used for air conditioning.


"It is exciting to see a project like this go ahead even though it has happened without any government incentives," said Kevin Pegg, president of Energy Alternatives Ltd, who designed the system and will install the panels.


The more corporate citizens that follow the land conservancy's lead, the more feasible solar power will become, said project manager Peter Hardcastle, with Hillel Architecture Inc.

Bondi's Westfield installs solar panels

Global property giant Westfield Group Ltd is pushing to become more environmentally friendly after allowing a shop at its flagship shopping centre at Bondi Junction in Sydney to install solar panels.


The installation of several solar panels on the roof of the Westfield centre will generate emissions free electricity running directly into the environmental store, Todae.


It will be the first Westfield property in the global portfolio of 118 shopping centres in Australia, New Zealand, the United States and United Kingdom, to use solar panels.


Todae opened last month and has been fitted out using a number of sustainable initiatives, to ensure the least environmental impact.


The store has been painted with bio-paint that is eco friendly and non toxic, while LED downlights and compact fluorescent globes have been installed to make the stores lighting 75 per cent more efficient than that of the average retail store.


Wherever possible, fitouts from the previous shop were used to reduce landfill, while shelving and displays have been made from recycled wood, some of which was sourced from the old Maritime Services Board building in The Rocks and estimated to be more than 100 years old.


Todae owner Danin Kahan said Westfield was very receptive to the idea when he first approached the company.


He said Westfield helped install the cabling and contributed to the total installation cost, which was between $15,000 to $30,000.


Westfield Group managing director Steven Lowy told AAP that he was impressed with Mr Kahan's initiative.


"Solar, of course, use of water and electricity, removal of rubbish and recycling, are really important issues to us," Mr Lowy said in May, after the company's annual general meeting in Sydney.


"I am impressed by the initiative by that retailer."


Mr Lowy said sustainability was important, and Westfield was undergoing a comprehensive audit of its practices and procedures.


"This is to highlight the practices that we are doing well and also highlight those practices that need improvement," he said.


He noted Westfield's future Sydney central business district development and Stratford project in London both had a high focus on sustainability.


"We are in the process of creating a common practice and a common understanding of what we want to do and how we want to do it," he said.


He said there was a high level of green awareness in the UK, with the focus on the building for the Olympics Games.


"We regard that as current best practice and will be taking the initiatives we learn there and taking that to the rest of the portfolio," he said.


When asked if he would consider allowing other retailers to also install solar panels, Mr Lowy said: "sure we would consider such measures." SMH

Ausra Opens US Solar Thermal Factory

Ausra has officially opened the reflector production line at its first North American manufacturing and distribution center in Las Vegas. The 130,000-square-foot manufacturing and distribution center will supply the reflectors, absorber tubes and other key components of the company's solar thermal power plants to the growing Southwestern solar power industry.

In November 2007, Ausra and California utility Pacific Gas and Electric Company (PG&E) announced a power purchase agreement for a 177-megawatt (MW) solar thermal power plant to be built in central California.

Ausra's Las Vegas manufacturing center will make solar field equipment for the PG&E project, for other power projects throughout the American Southwest and for Ausra's process steam customers, who are adopting solar thermal power to lower their fuel costs and emissions in their operations, including food processing, enhanced oil recovery and refining and pulp and paper manufacturing.

"Nevada is poised to be a leader in the clean energy revolution," said U.S. Senator Harry Reid (D-NV). "This facility will help position our state as the premiere place to invest in these new technologies. As the factory expands operations and we continue to invest in clean energy, we'll create thousands of good paying jobs and keep our outdoors pristine for future generations."

Alaska Turns to Volcanic Energy as Alternative Energy Source

Good warming; Alaska's geothermal efforts heat up

Late last week, Alaskan officials announced that they would be funding an exploration and surveying of Alaska's largest volcanoes, which they say could provide enough energy to power thousands of households.

In an era of soaring energy costs, wind and solar are often thought of alternatives. Geothermal, especially volcanic geothermal, is a more surprising source to many. However, volcanoes and hot springs are estimated to be able to provide at least 25 percent of Alaska's energy needs, according to experts.

The government is pushing utilities to lease land on Mount Spurr. The mountain is an 11,070-foot active volcano and erupted as recently as 1992. The government says power companies can tap into the vast heat teeming beneath the volcano's surface to generate power.

A lease sale will be held in August to these ends. The government is planning many similar sales. The government is also targeting 4,134-foot Augustine Volcano, also near Anchorage, for prospecting.

Alaska is not alone, either. Dozens of states have geothermal resources. Experts estimate that if fully exploited, these resources could provide 25 percent of the entire nation's power needs. Karl Gawell, executive director of the Geothermal Energy Association (GEA) states, "High prices and climate change are definitely creating a renaissance in geothermal interest, particularly on a state and local level."

Currently tax-subsidy eligible projects are underway in Texas, Florida, and most of the western states. These projects are just the "tip of the iceberg" according to Mr. Gawell. He states, "If we really want to go all out for it, we could easily achieve a substantial amount, 20, 25 per cent of US energy needs within a few decades. We're limited more by public policy than the resource - the resource is enormous."

According to the Bureau of Land Management, 12 states -- including Alaska -- have high potential geothermal lands. The most recent survey showed 200 million acres of public land with geothermal potential. However, Mr. Gawell says that these tracts, while impress are only part of the nation's hidden geothermal resources. He says many geothermal plots likely exist without outward features like hot springs. By his estimates 80 percent of the geothermal land in the U.S. remains undiscovered.

In Alaska, home to many easy to see geothermal power sources, geothermal seems like common sense. However, since the 1970s development has been put on hold thanks to Alaska's abundant oil resources. Now with oil price at record highs, Alaska is reconsidering geothermal.

The greatest challenge remains in coming up with innovative designs to tap the massive heat wells. Some are rising to the challenge; among them is a resort at Chena Hot Springs which is entirely powered by hot springs. It features hot springs driven interior heating and cooling, power, refrigeration (for its ice museum), and heating for a greenhouse. The resort near Fairbanks is gaining much attention for its innovations.

Presidential candidate Senator Barack Obama mentioned the potential for geothermal power in a recent speech. However, Mr. Gawell argues the issue is still not receiving the level of attention it deserves. He says, "The problem is it's only being produced in a handful of states. It's well known in those states but it's unknown in others."

Outside the U.S., Europe is also experiencing strong interest in geothermal power. Europe is the birthplace of the power technology, with the first plant built in Larderello, Italy in 1904. The GEA is predicting that the number of countries worldwide using geothermal will more than double to 46 by 2010.

While exploiting geothermal resources at volatile sites like volcanoes sounds dangerous, there is tremendous profit to be had with the risk. With proper monitoring, these sites could be safely operated to produce immense amounts of electrical power. It appears that Alaska may be on the leading edge of a new alternative energy revolution that's right under our feet.

Virgin Green Fund gains traction with CalPERS investment

Virgin Green Fund, the first green investment fund set up by U.K.-based Virgin Group, has raised $199 million from two large pension funds — CalPERS, Wolverhampton City Council — and other institutional investors to reach its first close, reports the Financial Times. CalPERS made its investment through PCG Clean Energy & Technology Fund. Macquarie Bank’s Clean Technology Fund is another prominent investor.


The fund was set up last year to make investments in renewable energy and resource efficiency. Like many private equity firms, VGF primarily invests in late-stage projects. It used seed money from Virgin to begin taking stakes in several startups before it had even completed its first round; it currently has seven. Virgin retains a minority stake in VGF’s management company.


VGF is on the cusp of closing a deal worth over $40 million to buy DuraTherm, a Texas City, Texas-based petroleum and metal recycling firm, with Masdar Clean Tech Fund, another green investment fund with $250 million under management.


The fund expects to complete a similarly-sized second funding round within the coming months.

Company scores plummet in Greener Electronics Guide, GreenPeace

With expanded and tougher criteria on toxic chemicals, electronic waste and new criteria on climate change only Sony and Sony Ericsson score more than 5/10 in our latest Guide to Greener Electronics. Nintendo and Microsoft remain rooted to the bottom of the Guide.

The Greener Electronics Guide is our way of getting the electronics industry to face up to the problem of e-waste. We want manufacturers to get rid of harmful chemicals in their products. We want to see an end to the stories of unprotected child laborers scavenging mountains of cast-off gadgets created by society's gizmo-loving ways.

First launched in August 2006 the Guide is now on its 8th edition. It ranks the top market leaders of the mobile phone, computer, TV and games console markets according to their policies and practices on toxic chemicals and take-back. It has been a key driving force in getting many of the companies to make significant improvements to their environmental policies. New to this edition are criteria to assess the impact of electronics companies on climate change.

Full Story here

Report blows hole in wind power plan

Wind power would be too unreliable to meet Britain's electricity needs, according to a new report.


It says wind patterns around the country mean turbines will fail to produce enough power at times of high demand.


Written by an independent consultancy and funded by the Renewable Energy Foundation, the report says backup electricity plants will be needed to meet demand during calm conditions.


It comes after the Government last week unveiled a £100million plan to build at least 4,000 wind turbines, with a further 3,000 offshore. The programme is expected to drive household bills up by £260 a year.


Published online in the journal Energy Policy, the study confirms concerns among critics that wind around Britain is too volatile to provide reliable energy.


Using wind data from the Met Office, researchers found that in January, when energy demand is highest, wind farms often fail to produce enough electricity, dropping on occasion to 4 per cent of their maximum output.


Backup fossil fuel plants would need to be switched on and off to make up the shortfall in supplies - a highly inefficient process that would reduce any carbon savings from wind farms.


The report says: "Wind output in Britain can be very low at the moment of maximum annual UK demand. These are times of cold weather and little wind.


"Simultaneously, the wind output in neighbouring countries can also be very low, and this suggests that intercontinental transmission grids will be hard to justify."


The authors used data on wind speeds and electricity demand from the past six years to work out what impact 25 Gigawatts - about 16 per cent of Britain's needs - would have had on the national grid if it had been supplied by wind farms.


The results show wind is highly volatile. In January 2005, for example, wind speeds varied so much that demand on conventional plants would have varied from 5.5GW to 56GW.


In that month, a 1,000MW fossil fuel plant would have had to come on and offline a total of 23 times to make up the shortfall. At 6pm on February 2 2006 - the point of peak electricity demand for the whole year - wind farms would have been unable to provide any power at all, researchers found.


Britain aims to achieve 10 per cent of its supplied electrical energy from renewable resources by 2010, and 20 per cent by 2020.


James Oswald, an engineering consultant and former head of research and development at Rolls-Royce Turbines, who led the study, said: "Wind power does not obviate the need for fossil fuel plan