The average cost of a kWh of electricity is 14.37p, and the average standing charge is around 30p. If the average household uses 12,000 kWh of gas and 2,900 kWh of electricity per year, this makes the average dual fuel energy bill around £1,128.23 per year or £94 per month. At the time of writing, however, energy costs are capped at £1,042 per year for both fuels in line with the energy price cap.