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Although a record amount of wind power was built in the U.S. last year, the market has come to a screeching halt this year.

The EPA has proposed new rules that it hopes will increase the use of renewable fuels by 9% this year and at the same time curb fraud.

As major investors like Google and Sequoia move into collaborative consumption, longtime insiders share their secrets to success.

Ed Sappin, CEO of The Willowbrook Company, reveals where to look for new funding and which sectors hold the greatest promise in 2013.

A federal appeals court has rejected an EPA rule that required refiners to generate or buy advanced biofuels in light of insufficient supply, representing a win for the petroleum industry.

Entrepreneurs in China, the world’s largest energy user, are looking beyond traditional clean energy sources like wind turbines and solar panels to niche technologies.

Chinese auto parts maker Wanxiang has received approval to buy A123 Systems from the Committee on Foreign Investment and expects the deal to close on Friday.

To offset the cost of Germany's shift to renewable energy, the government reported plans to cap rising household electricity prices and to compel industry to foot a larger part of the transition’s bill.

Greenpeace's Executive Director discusses their new strategy to turn companies into green advocates.

The president may use existing rules and his executive power to cut carbon emissions.