With a $34.5 million round, famed VC firm Kleiner Perkins boosts its investment in the novel wind turbine maker, which uses a design inspired by jet engines.
Google, GE, and others push governments at Cop15 climate talks to give consumers better tools to promote energy efficiency and enable the smart grid.
2009 ends with governments promoting clean-energy innovation for environmental reasons and for national economic competitiveness. Take a look back on the year.
As US iPhone users rally to bring down the AT&T data network and UK music lovers rage against the X Factor, we take a look at chartbombing, polljacking and the rise of 'one-click protest'
The U.S. agency will accelerate review of green technology patent requests in an effort to perk up economic development in the nascent industry.
With international climate change talks a week away, the host city takes its tannenbaum off-grid with a rack of bicycles powering LED lights.
No matter what happens in Copenhagen next month, green-tech companies say industry and national governments will drive investment in the near term, an analysis shows.