Wind energy

The first Google Energy deal has been made, and it's for 114 megawatts of wind power from NextEra Energy.

July 20, 2010 9:40am | By Andrew Nusca

California start-up Envision Solar sees electric cars filling up, and filling up in, the parking spaces of their sun-power lots.

1 | July 16, 2010 4:00am | By Melissa Mahony

With the opening of the world's largest solar power station, Spain has overtaken the United States as the biggest solar power generator in the world.

7 | July 15, 2010 12:19pm | By Andrew Nusca

Despite decades of development, no one has succeeded in the biofuels business. Cobalt Technologies CEO Rick Wilson says he wants to be the first.

2 | July 15, 2010 4:24am | By Andrew Nusca

Taxpayer dollars alone won't cover the cost of making the U.S. greener.

4 | July 13, 2010 6:00pm | By Deborah Gage

What will New York City look like in 2030? Three architectural firms design the city's future, using high-speed transportation, green spaces and lots of ingenuity.

8 | July 13, 2010 7:13am | By Andrew Nusca

Developing world population explosion; Asia's nuclear domination; wind power debunked; electric car grid outages; environmental modeling portal.

July 9, 2010 1:00pm | By Andrew Nusca

If clean technology is going to be a success, the rules for how to do business in the sector must be clearer, experts say.

3 | July 7, 2010 7:47am | By Andrew Nusca

Tata Power Company seeks to go off the grid by bringing wind turbines to the rooftops of rural India. Will the small packages of clean kilowatts add up to big energy?

17 | July 7, 2010 4:00am | By Melissa Mahony

VantagePoint CEO Alan Salzman says the Tesla electric car is a lot like the Apple II computer -- original, expensive and a few years before it will change the world.

5 | July 6, 2010 7:00am | By Andrew Nusca

An American and a Portuguese company venture to build the world's first floating wind farm. A recent study says it just may be possible.

7 | July 2, 2010 4:00am | By Melissa Mahony

The FAA and the Department of Defense say yes.

8 | July 2, 2010 12:01am | By Deborah Gage

Global cleantech investment by venture capital firms totaled more than $2 billion in the first half of 2010. Here's a breakdown of to whom and where it went.

July 1, 2010 9:06am | By Andrew Nusca

Several U.S. states can reach grid parity between 2014 and 2018, energy experts said at the REFF--Wall Street conference in New York City.

7 | July 1, 2010 7:03am | By Andrew Nusca

At the REFF--Wall Street forum in New York City, cleantech experts discussed the state of the industry and outlined seven renewable energy targets for 2020.

1 | July 1, 2010 6:30am | By Andrew Nusca

Location, intermittency, price and "green tape" are hindering progress of renewable energy, says American Electric Power CEO Michael Morris.

3 | June 30, 2010 5:57am | By Andrew Nusca

The future of renewable energy is in the microprocessor, and natural gas will help smooth the transition from fossil fuels to renewables, a top cleantech exec says.

1 | June 29, 2010 12:26pm | By Andrew Nusca

In 2009, revenue related to company's ecoimagination technologies grew 6 percent to $18B

June 24, 2010 4:28am | By Heather Clancy

NRG Solar has purchased its way into the renewable energy business by buying nine new solar projects in the western U.S.

2 | June 22, 2010 10:48am | By Andrew Nusca

NASA engineers weigh in on the controversial design of Jabulani, the official soccer ball of the World Cup.

9 | June 22, 2010 12:01am | By Deborah Gage