Nearly 200,000 people on benefits could have their debts to their energy supplier cancelled, if they make some effort to pay what is owed.
Unpaid bills and fees have soared in recent years with energy prices so high, leaving a record £4.4bn owed to suppliers.
Up to £500m could be knocked off the total under plans that regulator Ofgem wants to take effect early next year.
But that will also require the cost to be covered through an extra £5 added to everyone's gas and electricity bill. Households on a price cap tariff already typically pay £52 a year to deal with historic debt as part of the £1,755 annual bill.
