The government has said that energy efficiency policies are already helping to reduce the rise in energy bills.
According to a new report released by the Department for Energy and Climate Change, bills in 2020 will be 11% lower - equivalent to £166 - than they would otherwise have been.
Already dual fuel bills are estimated to be 5%, equivalent to £64, lower on average than they would be without these initiatives, the report says.
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Rain will spread eastwards across southern areas tonight. Clear and frosty in the north.
Political leaders will go head-to-head at ITV's studios in MediaCityUK in Salford, ITV has confirmed, as the set for the event is unveiled.
More than 100 people claiming to represent working people across Britain have signed a letter backing Labour in the general election.