US grabs lead over China in clean energy race

The United States has regained the lead in the clean energy race, investing $48 billion last year to surpass China, which held the world's top spending spot since 2009, said a study Wednesday.

First Solar CEO to step down, shares plummet

(AP) -- The CEO of the nation's largest solar company is out, First Solar announced Tuesday, sending its shares tumbling more than 24 percent.

Solar loan guarantees announced

(AP) -- The Department of Energy has announced nearly $4.5 billion in conditional commitments for loan guarantees for three California solar projects, the agency said.