Conventional wisdom suggests that because we're approaching the theoretical limit on individual wind turbine efficiency, wind energy is now a mature technology. But California Institute of Technology researchers revisited some of the fundamental assumptions that guided the wind industry for the past 30 years, and now believe that a new approach to wind farm design—one that places wind turbines close together instead of far apart—may provide significant efficiency gains.

This challenges the school of thought that the only remaining advances to come are in developing larger turbines, putting them offshore, and lobbying for government policies favorable to the further penetration of wind power in energy markets.

By ARTHUR MAX
Associated Press

AMSTERDAM (AP) -- Denmark earns the biggest share of its national revenue from producing windmills and other clean technologies, the United States is rapidly expanding its clean-tech sector, but no country can match China's pace of growth, according to a new report obtained by The Associated Press.

With the planet’s rising need for electricity overstepping its source, it is about time that we take solid actions to preserve electric power.

Despite being aware of the consumption of electric power and water at home, the population can make use of green and cheap electric power solutions at our houses.

By TODD WOODY
FEBRUARY 19, 2010, 12:10 PM

The German industrial giant Ferrostaal will use solar technology from the California startup eSolar in power plants to be built in Europe, the Middle East and South Africa.

A team of scientists from the University of Sheffield have developed an innovative device which will make the production of alternative biofuels more energy efficient.

The research team has adapted a unique bioreactor for use in the production of alternative renewable fuels, to replace fossil fuels such as petrol and diesel. The manufacture of biofuels currently requires vast amounts of power and when the process uses too much energy, it is uneconomic.

By MICHAEL TOTTY

It's a tall order: Over the next few decades, the world will need to wean itself from dependence on fossil fuels and drastically reduce greenhouse gases. Current technology will take us only so far; major breakthroughs are required.

Florida Power & Light Company (FPL) has announced the near completion of its DeSoto Next Generation Solar Energy Center in Arcadia, Florida. This solar power plant will be producing electricity by the end of month. This project is ahead of its schedule. The plant has an impressive number of 90,000 photovoltaic panels. Experts claim that this solar power plant will generate around 110MW of electricity by the end of 2010. This will provide Florida with the distinction of the second largest solar power-producing state in the country.

FPL is building three commercial-scale, non conventional solar power plants. They are DeSoto Next Generation Solar Energy Center, Florida, solar energy centers in Martin County and at NASA’s Kennedy Space Center. Together, these will produce a total of 110 megawatts of capacity by the end of 2010. They are expected to make Florida the second largest solar power-producing state in the country.

By Jeremy Jacquot

Ubiquitous and easy to grow, algae has long been a promising biomass-to-fuel candidate in the eyes of researchers. Now algae is a burgeoning sector in biofuels with several high-profile start-ups, including Craig Venter’s Synthetic Genomics, and the interest of big-time investors like Bill Gates and ExxonMobil. Of course, hurdles still exist to make a competitive fuel. Algal biofuels still cost too much to produce—over $8 a gallon (pdf), according to the DOE. Furthermore, most existing strains do not yield oil in the quantities needed to quickly scale up to commercial production of biofuels. Companies also need to worry about contaminating local ecosystems and the amount of water needed to grow cultures in large batches. Despite these challenges inroads—and actual fuel—are being made in the nascent field. Here are 5 projects leading the pack today.

ScienceDaily (Aug. 19, 2008) — In the world of alternative fuels, there may be nothing greener than pond scum.  Algae are tiny biological factories that use photosynthesis to transform carbon dioxide and sunlight into energy so efficiently that they can double their weight several times a day.

As part of the photosynthesis process algae produce oil and can generate 15 times more oil per acre than other plants used for biofuels, such as corn and switchgrass. Algae can grow in salt water, freshwater or even contaminated water, at sea or in ponds, and on land not suitable for food production.