California

Government's latest loan guarantee to support expansion of Calisolar's cheap and energy efficient silicon purification technology

Government decides BrightSource's 370MW solar thermal plant does not jeopardise protected desert tortoises

New Bill would ban the use of polystyrene packaging in an attempt to cut marine pollution

Green groups file lawsuit alleging company's 250MW California Ranch project will damage surrounding environment

Cap-and-trade plans forced to pause, after judge orders regulator to investigate alternative options

Award of over $2bn to Blythe plant in California follows $1.8bn to two other solar projects earlier this month

Sierra Club complaint rejected, clearing the way for flagship solar project

Energy firms to be tasked with generating a third of energy from renewable sources by 2020