Customers of CNG Energy and CNG Electricity, MA Energy, Omni Energy, Bluegreen Energy, Zebra Power and Ampower will all be switched to new suppliers under the regulator’s ‘supplier of last resort’ process. The suppliers will take on a total of 70,600 domestic and non-domestic customers.

Pozitive Energy will take on customers of CNG Energy and CNG Electricity, which supplied 41,000 non-domestic customers.

SmartestEnergy Business Limited will take on customers of MA Energy, which supplied 300 non-domestic customers.

Utilita will take on customers of Omni Energy, which supplied 6,000 domestic prepayment customers.

British Gas will take on customers of Bluegreen Energy which supplied 5,900 domestic customers, along with a small number of non-domestic customers, and Zebra Power, which supplied 14,800 domestic customers.

Yü Energy will take on customers of Ampower, which supplied 600 domestic and 2,000 non-domestic customers.

The appointments follow a ‘competitive process’ run by Ofgem to get the best deal possible for consumers. Energy supplies will continue as normal after they are switched over to their new suppliers.

Funds that current and former domestic customers have paid into their accounts will be protected, where they are in credit. Domestic customers will also be protected by the energy price cap with their new supplier.

Customers whose suppliers have ceased trading will be contacted over the coming days about the changes. If customers wish to switch supplier, they can shop around but are advised to wait until the transfer has been completed. Customers will not be charged exit fees if they decide to switch to another supplier.

Neil Lawrence, Ofgem’s director of retail, said: “I am pleased to announce we have appointed new suppliers for these customers. We understand that this news may be unsettling for customers, however they do not need to worry. Their energy supply will continue as normal, and domestic customer credit balances as well as some non-domestic credit balances, will be honoured.

“Your energy supply will not be interrupted, and your newly appointed supplier will be in contact with customers over the coming days with further information. If customers wish to switch suppliers they can shop around if they wish, but they are advised to wait until the transfer has been completed.”