Housing association-backed energy provider Our Power has ceased trading.
Directors at the not-for-profit company said the decision was taken “with heartfelt regret” and blamed a “very difficult” and “highly volatile” energy market.
Philippa Pickford, Ofgem’s director for future retail markets, said: “Our message to energy customers with Our Power is there is no need to worry, as under our safety net we will make sure your energy supplies are secure and your credit balance is protected.
“Ofgem will now choose a new supplier for you, ensuring you get the best deal possible. Whilst we’re doing this our advice is to ‘sit tight’ and don’t switch. You can rely on your energy supply as normal. We will update you when we have chosen a new supplier, who will then get in touch about your new tariff.
“We have seen a number of supplier failures over the last year and our safety net procedures are working as they should to protect customers.”