Eco20/20

A British company is poised to construct the world's first floating wind turbine, in a move that could herald a new generation of cheaper, less problematic wind energy. Blue H, a firm registered in the UK but based in Holland, aims to anchor its prototype device 12 miles off the coast of southern Italy later this month.

An underwater turbine that generates electricity from tidal streams was plugged into the UK's national grid today. It marks the first time a commercial-scale underwater turbine has fed power into the network and the start of a new source of renewable energy for the UK.

Texas, headquarters of America's oil industry, is about to stake a fortune on wind power. In what experts say is the biggest investment in the clean and renewable energy in U.S. history, utility officials in the Lone Star State gave preliminary approval Thursday to a $4.9 billion plan to build new transmission lines to carry wind-generated electricity from gusty West Texas to urban areas like Dallas.

have a biking nemesis: During my regular rides around the six-mile outer loop of New York's Central Park, the big hill at the north (uptown) end of the park invariably sucks the very life out of my aging legs. Yesterday, however, pedaling up the big incline was another story altogether. It was as easy as climbing a small rise. My new-found prowess had nothing to do with any improved fitness, of course; it was the bike I was riding, the Twist Freedom DX from Taiwan's Giant Bicycle, Inc., which augments every pedal stroke with a finely timed electric boost.

Despite an unstable regulatory environment-renewable energy tax incentives are stalled in the senate, BLM policy has been inconsistent- the United States will surpass Germany to be the largest market for solar power in the world by 2011, according to a report by JP Morgan, cited in Greentech Media. By 2011, the US will have an installed capacity of 1.6 gigawatts (with 920 MW in California alone), surpassing Germany's expected capacity of 1.35 gigawatts. The third largest market by this time will be South Korea with 957 megawatts of capacity.

And you thought the U.S. was getting big solar photovoltaic projects (like the one being built by SunPower for FPL, or SunEdison for Duke). But those will deliver just a little more than half of what a Godzilla-like solar PV project in Germany will soon provide. The managing director of solar builder Juwi Solar, Michael Martin, said Juwi has already built over half - or 26 MW - of what, at 40 MW, he claims will be the world's largest solar PV project, which could be completed as soon as the end of the year.

The incandescent lightbulb that wastes 90% of the electricity as heat is dying, we all know that. But a new breakthrough in solid state lighting might also kill compact fluorescent lightbulbs (CFLs) faster than some expected. Scientists at Purdue University have figured out how to manufacture LED solid-state lights on regular metal-coated silicon wafers (more details below). What this means is: much lower costs.

A tiny rectangle superimposed on the vast expanse of the Sahara captures the seductive appeal of the audacious plan to cut Europe's carbon emissions by harnessing the fierce power of the desert sun. Dwarfed by any of the north African nations, it represents an area slightly smaller than Wales but scientists claimed yesterday it could one day generate enough solar energy to supply all of Europe with clean electricity.

Last year, we featured a nightclub lit entirely by LEDs, but here's an office building that is said to be the first to be lit by 100% LED light. The lighting was provided by the Netherlands-headquartered Royal Philips Electronics. To showcase the potential of LED light, Philips designed the lighting system to be warm and visually comforting. A total 422 LED fixtures were installed into the building's false ceilings. The offices are lit with fixtures that incorporate 12-16 high power LEDs, each rated at 2.6 watts. LED spotlights are used to illuminate the corridors.

Warnecke, a researcher at the U.S. Department of Energy's Joint Genome Institute in Walnut Creek, California, has been generating lots of attention lately for his work with termites. The insects are remarkably efficient at turning cellulose into sugar-the first step in making fuel from plants like switchgrass or poplar trees. Scientists can't compete with termites.

When the Sentry Equipment Corporation in Oconomowoc, Wis., was considering how to light its new factory last year, the company's president, Michael Farrell, decided to try something new: light emitting diodes, or L.E.D.'s.

Last week, Pickens stopped by The Times to discuss his push to wean the U.S. off foreign oil by dramatically ramping up development of its infrastructure for wind and natural gas. Below is a partial transcript. T. Boone Pickens: We are now importing oil that costs us $700 billion a year. That's four and a half times what the Iraq war costs. Nobody running for president even speaks about this. Yet they talk a lot about the Iraq war. When you look at it, the world oil supply is about 85 million barrels of oil a day. And demand is about 86-plus million barrels a day.

In what comes as a surprising move, Assistant Secretary for Energy Efficiency and Renewable Energy Andy Karsner announced his resignation from the Department of Energy on Wednesday. Karsner's resignation came on the same day as news that Senate Republicans blocked an attempt to extend funding for renewable energy tax credits for the fourth time this summer. It is still unclear if there is any relationship between the two events.

Scientists mimic essence of plants' energy storage system. In a revolutionary leap that could transform solar power from a marginal, boutique alternative into a mainstream energy source, MIT researchers have overcome a major barrier to large-scale solar power: storing energy for use when the sun doesn't shine.

We've written with great fanfare about Beluga Skysails, the cargo ship that has successfully used a large kite to generate energy for operations during windy periods at sea. The billowing kite cut energy around 20 percent during a trip from Venezuela to Germany and up to Norway earlier in 2008.

A company called Green Energy Capital Partners based in Philadelphia is planning to build what they term as the second largest solar energy plant in the nation, in the Carbon County. The $60 million, 100-megawatt solar energy plant will be built on 100 acres of land near the Green Acres Industrial Park in Nesquehoning. The solar energy plant is predicted to contain 40,000 solar panels on rotating mounts.

The University of Twente (UT) has devised a concrete capable of converting the nitrogen oxide from car exhaust--the source of smog and acid rain--into a nitrate, another chemical that will wash away in the rain.

Jørgen Tranberg is a farmer who lives on the Danish island of Samsø. He is a beefy man with a mop of brown hair and an unpredictable sense of humor. When I arrived at his house, one gray morning this spring, he was sitting in his kitchen, smoking a cigarette and watching grainy images on a black-and-white TV.

Hydrogen cars get no respect. A lot of people consider them the stuff of science fiction, a technology as vaporous as the stuff that drives them. But despite some hurdles even Liu Xiang couldn't clear -- creating a fueling infrastructure comes to mind -- Uncle Sam and the big automakers love hydrogen cars and are driving across the country in a fleet of them to prove they work. Even if they're occasionally hauled on trucks.

A while back we reported (with some skepticism) a report coming out of China that said they would be producing over 100 gigawatts of wind by 2020, a 1,500% increase. Little did I know that the United States was, at the same time, on track to actually beat that! A report from Emerging Energy Research, a cleantech consulting firm, points out that the U.S. is now the world's fastest growing market for wind power. Last year 5 gigawatts of wind power were installed, and 2008 will break the record again with 8 new gigawatts under construction. The U.S. will shortly be the world's largest producer of wind energy, surpassing Germany's 22 gigawatts.