The poll into energy use also revealed that eight out of ten families are rationing warmth in their homes.
Of those surveyed, nine out of ten are wearing extra clothes instead of turning on the heating, while 56% turn it off altogether when children are not in the home.
Energy Bill campaigners today called on the Government to drive down energy bills.
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The rain band will soon be clearing eastwards, but more showers will be affecting parts of the UK this afternoon.
David Cameron will stand down as Conservative leader ahead of the general election expected in 2020, Iain Duncan Smith said.
Delegates at the SNP spring conference have backed a move to allow all-female shortlists in the Scottish Parliament election next year.