Ofgem should be given an extended remit to protect non-domestic customers from high energy costs, a heavyweight committee of MPs has urged. In a new report on energy bills support, the House of Commons Public Accounts Committee (PAC) has questioned whether Ofgem’s existing role in regulating the non-domestic energy sector is “fit for purpose” for managing future unexpected market shocks. The Committee has also criticised the government for taking too long to provide support to the most vulnerable last winter.