A household energy supplier has failed, weeks after it attracted attention from regulators.

Rebel Energy, which has around 80,000 domestic customers and 10,000 others, had been the subject of a provisional order last month related to compliance with rules around renewable energy obligations.

The company’s website said it was “ceasing to trade” but gave no reason.

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Industry watchdog Ofgem said on Tuesday that those affected by Rebel’s demise did not need to take any action and would be “protected”.

Customers, Ofgem said, would soon be appointed a new provider under its supplier of last resort (SoLR) mechanism.

This was deployed widely in 2021 when dozens of energy suppliers collapsed while failing to get to grips with a spike in wholesale energy costs.

The last supplier to go under was in July 2022.

Ofgem said new rules governing supplier business practices since then had bolstered resilience.

These include minimum capital requirements and the ringfencing of customer credit balances.

The exit from the market by Bedford-based Rebel was announced on the same day that the energy price cap rose again to take account of soaring wholesale costs between December and January.

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Tim Jarvis, director general for markets at Ofgem, said: “Rebel Energy customers do not need to worry, and I want to reassure them that they will not see any disruption to their energy supply, and any credit they may have on their accounts remains protected under Ofgem’s rules.

“We are working quickly to appoint new suppliers for all impacted customers. We’d advise customers not to try to switch supplier in the meantime, and a new supplier will be in touch in the coming weeks with further information.

“We have worked hard to improve the financial resilience of suppliers in recent years, implementing a series of rules to make sure they can weather unexpected shocks. But like any competitive market, some companies will still fail from time to time, and our priority is making sure consumers are protected if that happens.”