green energy

California's SolarCity Sees a Bright Market on the East Coast

California-based solar panel installer SolarCity has announced its second East Coast deal in a month: It's buying the residential solar business of Vermont-based groSolar, hard on the heels of its purchase of Maryland's Clean Currents. And SolarCity isn't the only West Coast solar player looking toward the sunrise for growth.

What U.S. Energy Policy Needs: Less Coal, More Uranium

With cleaner air and energy self-sufficiency high on America's list of priorities, our irrational dislike of nuclear power looks increasingly imprudent. China, France and the U.K. have raced ahead safely on nuclear power: It's well past time for the U.S. to start catching up.

Can the U.S. Tap the Hot Geothermal Market?

American companies have a golden opportunity to expand the country's leadership in the global market. Industry leaders meeting this week in New York laid out the huge opportunity but also warned that red tape and a relative scarcity of personnel with the right know-how threaten to stifle efforts to expand this clean-energy source.

Ethanol, the Next Generation: Corn Is Out, Cellulose Is In

It has become clear to politicians and scientists that corn-based ethanol isn't the solution for creating a home-grown fuel source. Enter "cellulosic ethanol," made from wood chips, weeds or algae: Is this the fuel of the future? A company called Mascoma is gearing up to prove it is.

Google Invests in Offshore Wind Energy Network

Google is taking an investment stake in the construction of a major undersea power network off the mid-Atlantic coast, the company announced Tuesday. The project is designed to deliver enough energy to power 1.9 million households from offshore wind turbines to the Eastern Seaboard.

More Solar Power to Heat Up New York's Economy?

New York lawmakers are considering legislation to boost the state's solar power generation to 2.5% of overall electricity sales by 2025. This is part of a nationwide renewable energy trend driven by the new jobs and other economic benefits the switch will likely bring.

Green Power Goes Local in California

Counties in California can now set up their own energy authorities, and this month Marin County became the first to offer residents green energy. But what is green energy? As always, the devil is in the details.

Private equity sticks with clean tech

Despite tumultuous global financial market conditions, private equity investments in the clean technology ("cleantech") space showed resilience last...