Greentech Media

With the announcement, expected to mark the switch to a more powerful transmission, the electric-sports car startup plans to ramp up production to more than 100 Roadsters per month by early next year.

Range Fuels rakes in $100 million for cellulosic ethanol, Coskata gets $19.5 million for the same and Suntech acquires $100 million in shares of Nitol Solar.

Biodiesel companies Cargill and Alabama Biodiesel face pollution allegations after a solar-silicon company is accused of dumping toxic waste. Will the rest of the greentech industry suffer a credibility problem?

Despite recent studies that ethanol will stir up more environmental havoc than traditional oil-based fuel, the money is rolling in for Coskata, which claims to have revolutionary next-generation biofuel on the horizon.

As countries pledge funds for greener policies at the Washington International Renewable Energy Conference, President Bush makes commitments that sound strangely familiar.

Responding to suspicions about its silicon, CEO Xiaofeng Peng said the company plans to use its entire inventory. It remains to be seen whether the comment will assuage concerns from analysts.

After announcing a partnership with battery startup A123Systems and an investment from General Electric, the Norwegian electric-car company says it aims to bring a five-seat vehicle called Ox to the United States as early as late 2010.

Shenanigans such as alleged dummy companies, formed to help attract customers who didn't want to pay Chinese taxes, are a sign of heating competition in cellulosic ethanol, analyst says.

Global Solar Energy expects to open a 40-megawatt copper-indium-gallium-diselenide thin-film plant Thursday after Nanosolar in December began production of the same material and HelioVolt announced it would begin production this year. Will any of these companies give First Solar a run for its money?

As the U.S. Congress prepares for another bout in the battle over renewable-energy tax incentives, some states consider feed-in tariffs. Which policies are worth the fight?

As the Environmental Protection Agency formally denies California the right to regulate greenhouse-gas emissions from vehicles, analysts suggest that new technology to make cars greener could continue to come out in other countries, with stronger policies, first. But higher fuel prices could change that forecast.

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.