The guarantee could help Solyndra, a solar cell company, scale-up production.
North African solar energy plans put on hold.
A startup reveals details of its plan to replace lithium ion batteries in electronics.
The optional solar roof on Toyota's 2010 Prius may not provide a watt of mobility.
Automakers tout EVs but also believe that conventional cars will dominate for decades.
Energy secretary Steven Chu gives some details about alternatives to the Yucca Mountain nuclear-waste site.
A new study says no; GM disagrees.
Ford and Tata will accelerate EV sales by swapping gas engines for electric ones.
Due to the credit freeze, Optisolar falters and rising star First Solar expands.
If batteries aren't up to the job, why not make smaller cars?