Detailed information about the fuels used to generate electricity

All suppliers, including Sainsbury's Energy, are required to provide information about the mix of fuels used to generate the electricity supplied to their customers as well as its environmental impact.

Known as the Fuel Mix Disclosure, we must publish this information annually. The table below shows the British Gas Fuel Mix Disclosure for the period 1 April 2016 to 31 March 2017.

British Gas sources the electricity on behalf of Sainsbury's Energy.

British Gas Fuel Mix Disclosure for the period

1 April 2016 to 31 March 2017

Energy Source British Gas UK Average
Coal 11% 9%
Natural gas 35% 44%
Nuclear 10% 21%
Renewables 40% 24%
Other fuels 4% 2%
CO2 emissions 252 g/kWh 254 g/kWh
High-level radioactive waste 0.0007 g/kWh 0.0015 g/kWh

British Gas figures have been rounded up to nearest whole percent so may not equal 100%.

Sainsbury's Energy is a trading name used under licence by British Gas Trading Limited, a Centrica company. Registered in England and Wales No. 3078711. Registered office: Millstream, Maidenhead Road, Windsor, Berkshire SL4 5GD.

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