bills averaged £ ##500 - almost three times the national average of £ 4,363 . People also paid more in derby , Beaconsfield , Chesham and Amersham . Stoke - on - the borough had the lowest bills at £ 2,100 per month .
Bills averaged £16,900 - almost four times the national average of £4,363 . People also paid more in Windsor , Beaconsfield , Chesham and Amersham . Stoke-on-Trent Central had the lowest bills at £2,100 per year .