Britons are being urged to check if they can save “hundreds” of pounds on their energy bills as thousands of fixed tariffs are soon due to end.

A number of energy providers, from Octopus Energy and British Gas to Ecotricty are all offering deals up to nine percent cheaper than Ofgem’s current energy price cap, according to new research from Uswitch.com.

The same research found more than 320,000 households could qualify to make a saving worth up to £410, depending on the deal they…