Greentech Media

With natural-gas prices on the rise and renewable-energy targets pushing for greener energy, utilities such as Xcel Energy are hoping that batteries can take the edges off bumpy wind-power production.

As the industry faces a paucity of energy engineers, venture capitalist Vinod Khosla says India is well-positioned to be a greentech innovation leader.

In spite of biofuels' troubles, a Connective Capital partner says there's still money to be made in the sector. And fund executives say greentech isn't headed for a crash.

The San Francisco mayor says it's time to get serious about combating climate change with greentech and advises a Cleantech Forum audience to insist on more government support -- or face a fall.

As analysts predict an industry shakeup, Greentech Media digs through solar's seismic events to unearth sources of the movement.

As Carbon Forum America kicks off in San Francisco, the Center for Resource Studies plans to guarantee consumers that carbon-offset purchases are legitimate. But is it the same old promise?

Virgin Atlantic announced the first test flight fueled with a little bit of biofuel, but critics say the environmental benefit is nil.

A Texas truck stop selling ethanol and BioWillie biodiesel is scheduled to open this summer. Will efforts like Willie's Place make biofuels more popular?

After the Senate failed to pass two bills that would have extended tax credits for renewable energy, the Solar Energy Industries Association has scripted a battle blueprint to save the U.S. market -- complete with four contingency plans.

The Palmetto State jumps onto the hydrogen-fuel bandwagon ... with a pickup truck.

The Canadian province is moving forward with a carbon tax, surpassing a deadlocked U.S. Senate. California and the U.K. also passed new measures that will encourage green-energy use.

The ethanol startup plans to complete a demonstration plant in the next year and a commercial plant in 2010, but distribution could prove a challenge. The Khosla Ventures-backed company plans to turn to "nontraditional" tactics, as well as grow the number of gas stations that pump its "C85" blend.

The electric-car startup says it wishes to remain independent, but also wants a large automaker to produce its third model, a compact sports car. The company also divulges details about its financing and production plans for the Roadster and soon-to-be-renamed White Star sedan.

Sony will invest $204 million into organic light-emitting diode panels for televisions. It's the only company that has them on the market so far. But should it have held out for a cheaper, more consumer-friendly model?

Tesla Motors plans an IPO, while Think Global, Valence Technology and Fisker Automotive sign deals.

REC said this week that its polysilicon plant will cost 20 percent more than originally expected. Clean Edge Principal Ron Pernick said delays and rising costs are to be expected.

Announcements such as Coskata's partnership with ICM and DOE grants could make ethanol cheaper and more abundant using nonfood sources. Will that -- and a U.S. goal of 36 billion gallons by 2022 -- be enough to spur demand?

While the demand for efficient ways to purify water is growing, private investment hasnít followed suit. But three announcements this week, including $20 million for Seven Seas Water, may signal a change.

Advanced Technology Ventures closes a $303 million fund, joining the ranks of private firms raising money for green technology. But can VCs spend it all?

Continuing a trend of solar departures in recent months, Gerald Wilson leaves Evergreen Solar, according to an SEC filing that indicates he told another director he was frustrated with CEO Rick Feldt.