The UK will face rising energy bills as the UK depends more on imports, warns regulator.
New figures from Ofgem show energy suppliers' profit margins jumped in the last quarter.
David Cameron has said the government's energy policy should focus on bring down energy bills.
The EDF Group, which owns EDF Energy, has announced a fall in profits for 2011.
Pioneering new supplier, Co-op Energy, is putting its prices up today for new customers.
First the banks... could energy suppliers also receive bailouts from the government?