THOUSANDS of Ovo and Good Energy customers are to get a refund after the regulator found that the firms had overcharged households.
Ofgem has ordered the energy firms to pay a total of £4million, £2.7million of which will be split between 18,000 homes.
The average repayment to affected Ovo customers will be £181, while Good Energy will refund £109.
The regulator said the suppliers had charged people above the rate allowed under the two energy price caps.
Dan Norton, deputy director of retail at Ofgem said: “It is totally unacceptable that Good Energy and Ovo Energy customers were overcharged, particularly at a time that is already so challenging and stressful for consumers across the UK.”
Those customers who have been affected will be automatically refunded.
Both firms have apologised to affected customers.