Say the word "biofuels" and most people think of grain ethanol and biodiesel. But there's another, older technology called gasification that's getting a new look from researchers at the U.S. Department of ...

Color this idea with the green crayon. Crayola is looking at using sun power to generate electricity for its eastern Pennsylvania plant.

Pacific Gas and Electric Co. has signed two contracts to buy enough solar energy to power 239,000 homes each year.

U.S. scientists say they have created flexible plastic sheets containing billions of nanoantenna arrays to collect heat from the sun and other sources.

An active damping system cancels out the noise by producing counter-vibrations. If wind energy converters are located anywhere near a residential area, they must never become too noisy even in high winds.

John McCain recently tried to underscore his seriousness about pushing through a new energy policy, with a strong focus on more drilling for oil, by telling a motorcycle convention that Congress needed to come ...

Anyone who has walked barefoot across a parking lot on a hot summer day knows that blacktop is exceptionally good at soaking up the sun's warmth.

Lotus Engineering is maintaining its busy research and development schedule and has revealed its latest partnership with fellow British company Jaguar in the creation of an advanced biofuel engine called the ...

Americans continued to drive less at the start of the summer, new Department of Transportation data shows.

Which brings us to Madame Speaker's 2007 financial disclosure form. Schedule III lists "Assets and 'Unearned Income'" of between $100,001-$250,000 from Clean Energy Fuels Corp.