Ofgem has recommitted to reviewing the business energy market following “concerning reports” it has received.

In the past couple of months, reports suggested that some businesses face problems in getting fixed rate energy deals while others are asked to pay large deposits by some suppliers.

In a letter sent to the Chancellor, Ofgem’s chief Jonathan Brearley said: “Our role as regulator, is to protect all consumers and we too are deeply concerned about the reports we have received.

“We are determined to root our bad behaviours and act if and where regulatory protection for customers is needed, or signal to government where legislation or other government action may be needed that is beyond our powers to resolve.”

Later today, Ofgem’s Chief Executive will join a Business Committee’s session on energy pricing and the future of the energy retail market.

Mr Brearley continued: “We have initiated a review of the non-domestic market. We gathered initial responses from suppliers after writing to and meeting with them and have followed that up with a detailed information request to analyse their actions related to pricing, offers to contract and compliance with their Energy Bill Relief Scheme and other licence obligations.

“We will update you on the progress of our work before your Budget announcement in March. The non-domestic market is characterised by a very large range of customer types, bespoke contracts and different supplier models.

“The complexity of the market means that this market review will progress through this year.”