The political row over energy bills raged on as Labour and the Tories battled to persuade voters they could control rising costs.
Ed Miliband is pledging to end the energy “rip-off” as he details proposals for reforming markets but Prime Minister David Cameron continued to claim Labour’s plans were a con.
It comes as Government sources denied reports that the big six energy firms are being urged by the Government to hold prices until the middle of 2015.
Speaking from Vilnius in Lithuania where he is attending a summit, Mr Cameron said: “I want to help households and families by getting sustainably low energy prices.
“Now, the only way you can do that is by increasing competition and eroding the costs of some of the levies on people’s bills.
“I said that’s what we were going to do, that is what we are going to do and I think that’s a very positive step forward.
“That’s a world away from making a vague promise about something you might do in 20 months’ time with no idea about how you are going to do it.
“That is a con. What we are dealing with is real policy that can make a real difference.”