Fresh from securing landmark British Gas deal, Swiss smart meter firm announces it has now raised $250m in capital over the last year

EcoFactor completes second funding round in five months as interest grows in online energy management system

Japanese metropolis launches Asia's first emissions cap-and-trade scheme

US Energy Information Administration downgrades projections for this year, but still expects global demand to rise by almost 1.5 million barrels a day

New US report suggests older workers could provide crucial boost to low carbon economy

Electronics giant sets sights on low-cost grid-scale storage technology capable of supporting renewable energy projects

Vehicle standards finally adopted formally in a move that should cut US vehicle emissions by around 15 per cent

First step in Californian firm's bid to build the world's first infrastructure networks for electric cars by next year

Air Force completes first flight of A-10C Thunderbolt II with all engines running on blend of biofuel and conventional fuel

From Tesla's U-turn to the latest carbon offset crisis, we run down the top stories from the past week