California

Department of Energy will back construction of three thin film solar plants with a combined 1.3GW capacity

State-wide cap-and-trade scheme will not come into full effect until start of 2013

Appeal court ruling allows regulators to continue work on state-wide emissions trading scheme

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