South Africa set to get 100MW solar farm as California approves first new solar thermal plant in 20 years
Vice president insists stimulus dollars will lead to a doubling of US renewable energy capacity by 2012
Energy giant to provide domestic customers with free solar installations
Delayed construction work starts on Merseyside's Green Energy Training Centre for microgeneration technologies
But share price still slips on concerns over 2011 demand
Chinese solar manufacturer increases shipment forecast for the rest of the year
Team at University of Leicester predict low-cost solar cell could turn buildings and aircraft into mini power stations
Country's largest energy companies are all chasing contracts to build a new wave of large-scale solar farms
Leading solar firms report better-than-expected financial performance
New bill cuts $1.5bn from renewable energy loan guarantee scheme to plug holes in education and healthcare budgets