Energy suppliers and brokers are being urged to “be open about hidden costs” that are leading to higher energy bills for householders and businesses.

David Hunter (pictured), Energy Expert at Schneider Electric claims “unknown levels of commissions” paid to energy brokers and price comparison sites could be contributing to a rise in energy bills.

He said: “One thing we don’t see broken down in the figures is how much money goes in hidden commission from the suppliers to those websites.”

His call comes as SSE last week announced an 8.2% average rise in gas and electricity bills, blaming the decision on “costs outside its direct control”.

Mr Hunter is challenging the energy industry to be transparent, especially at a time when rising bills are putting pressure on the cost of living.

He added: “From supplier/producer profits to green policy costs and broker commissions, all charges should be open and scrutinised so that homes and businesses don’t pay a penny more than they need to, just to keep the lights on. I call on both suppliers and brokers to clearly state the amount of hidden commission included on energy bills and would ask customers whether they are prepared to put up with secret third party costs at a time when bills are shooting up?”