The amount of money owed to energy suppliers by customers has risen again to a new record high of £4.79bn.

Regulator Ofgem said that total debt and arrears in England, Wales and Scotland had risen by 15% in a year.

The data, external is updated every three months, with the newly-published figures covering the period from January to the end of March. They relate to energy customers who have been in debt for more than three months.

Average arrears for those without a repayment plan hit £1,876 for electricity and £1,623 for gas – more than twice the amount as those who have a repayment agreement.

Energy prices will rise for millions of households in July – driven by the increase in the cost of gas.

Experts say there are options to cut bills, even though people may feel they have already made every saving possible.