Car giant invites first customers to pre-order its all-electric Leaf
Salt caverns below the Irish Sea to store 1.5bn cubic metres of gas
DECC says 70,000 vouchers worth a total of £28m are still available to households operating inefficient boilers
Giant 10MW turbine will be tested on land before being installed in North Sea
From Branson's Peak Oil fears to the Lords' Climategate concerns, we run down the top stories from the past seven days
Suit requests permanent injunction barring Mitsubishi Heavy Industries from using two pieces of turbine technology
Regional emissions trading schemes are springing up in China, India and Japan
Controversial reductions in German feed-in tariffs could be held back until the summer
Chief executive remains bullish over outlook as company confirms it already has 8GW of orders in place for 2010