Customers with energy firms British Gas, EDF, OVO, Octopus and E.On can claim £1,500 off their bills if they claim one type of benefit.

A little known scheme allows customers of major energy companies to claim what’s known as an Energy Bill Grant from their gas or electricity supplier, which could be worth hundreds or even thousands of pounds off your bill.

British Gas has £200M set aside to support customers facing financial difficulties. In the past three years, more than 2M British Gas…