Over 8 million people on direct debits paid energy firms in advance this winter, but because of milder weather, never used the energy in the end. The average customer is £108 in credit.
Caroline Flint, who campaigned for four years for a price cap on default tariffs, said:
“I cannot believe that after all of the bad press the big energy companies received over unjustified price hikes, even after a price cap was imposed on them - they are still ripping off consumers.
“While many families are finding it hard to make ends meet, greedy energy firms are holding £909 million that isn’t theirs.
“Ofgem rules demand that if you have overpaid, you must be repaid any credit on request – but if a consumer doesn’t ask, they hang on to their money way too long.
"To have to wait to the end of their contract year to get their own money back is disgraceful.
“Ofgem needs to turn the heat up on foot-dragging energy firms. People have a right to expect fair play as well as fair prices from these energy giants.”
The MP is urging customers to contact their energy firm now, check if they are in credit and request the money back immediately. Under Ofgem's rules, if you request a refund, in normal circumstances they should grant it. Otherwise, customers usually wait until their annual review for money to be refunded.
Read the full story in the Daily Mirror.