Finance

NRG Energy will acquire clean energy retailer Green Mountain Energy Company for $350 million in cash.

4 | September 16, 2010 2:06pm | By Andrew Nusca

Kohl's Department Stores is expanding its solar power program at its retail locations and distribution centers.

1 | September 16, 2010 7:36am | By Larry Dignan

GE's Smart Patient Room promises to help tired doctors and nurses avoid mistakes by monitoring their actions in real time.

1 | September 16, 2010 3:46am | By Andrew Nusca

Foreign cleantech firms should look to the United States wind power market for growth, says Ingeteam CEO Aitor Sotes.

September 15, 2010 3:00am | By Andrew Nusca

The U.S. Army has awarded Lockheed Martin a $14 million contract for a high power fiber laser-based system suitable for military use.

September 14, 2010 10:38am | By Andrew Nusca

Lithium-ion batteries -- the kind in your mobile phone or laptop computer -- will be key for short-term storage as the smart grid expands, according to a new report.

3 | September 13, 2010 7:02am | By Andrew Nusca

The U.S. Dept. of Energy has awarded Petra Solar a $3 million contract to commercialize its technology for the nation's energy grid.

September 9, 2010 1:38pm | By Andrew Nusca

Algae-derived biofuels company Solazyme says it has tapped Virgin Group billionaire Sir Richard Branson as an investor.

1 | September 8, 2010 1:46pm | By Andrew Nusca

By some estimates, there are still $6 billion in rebates and other incentives to help fund energy-efficiency initiatives in the private and public sector.

2 | September 7, 2010 5:31am | By Heather Clancy

President Obama announces a 6-year transportation overhaul. Will more Americans be riding the rails at high speeds soon?

29 | September 7, 2010 4:00am | By Melissa Mahony

Report co-authored by Center for American Progress suggests nationwide energy efficiency initiatives could create up to 625,000 sustained jobs and $50 billion in cost savings.

6 | September 1, 2010 5:53am | By Heather Clancy

Does Sal Kahn represent the future of education? His online course site draws more students than Harvard and Stanford combined.

4 | August 31, 2010 9:34am | By Joe McKendrick

SunPower landed solar power installation contracts for a bevy of U.S. government entities.

August 30, 2010 7:36am | By Larry Dignan

Within the burgeoning solar power industry, a technology war is underway: crystalline silicon vs. thin film cells. Silicon may have the upper hand, but XsunX CEO Tom Djokovich says not for long.

5 | August 23, 2010 7:11am | By Andrew Nusca

Bigger is not better when it comes to population growth, writes Joel Kotkin. Here's why he says megacities are detrimental and avoidable.

37 | August 18, 2010 8:32am | By Andrew Nusca

Las Vegas' sustainability officer admits that his city--an 'island in the desert'--is not a very sustainable place. But between the government's fleet of electric bikes, a residential lawn...

5 | August 16, 2010 2:00am | By Melanie D.G. Kaplan

DARPA has awarded GE scientists $6.3 million to develop bio-inspired sensors to better detect dangerous warfare agents and explosives.

August 12, 2010 10:53am | By Andrew Nusca

The U.S. Dept. of Transportation has a faulty business model to fund highways, and the problem will only get worse as efficient electric cars proliferate. Here's why.

62 | August 11, 2010 5:44am | By Larry Dignan

University of Pittsburgh School of Medicine researchers found a new class of RNA using Helicos BioSciences' single molecule sequencing platform.

1 | August 10, 2010 3:39pm | By Boonsri Dickinson

SunPower will install a 15-megawatt solar power system on an Arizona Air Force base. The installation will be the largest at a U.S. government facility.

6 | August 10, 2010 8:40am | By Larry Dignan