All energy companies are required to tell their customers about the mix of fuels they use to generate the electricity they supply and the impact this has on the environment.

The table below shows how we sourced electricity from 1st April 2023 to 31st March 2024 on behalf of our customers.

FuelElectricity supplied by So EnergyAverage for the UK (for comparison)
Renewables66.7%43.2%
Natural gas22.7%35.0%
Nuclear3.5%12.70%
Coal4.9%6.3%
Other fuels2.2%2.8%



Environmental impact

CO2 emissions155.8 g/kWh221.7 g/kWh
High level radioactive waste0.00021 g/kWh0.00076 g/kWh



We keep the figures on this page updated in line with the publishing dates of the Government's fuel mix data disclosure data table, as defined in the Electricity (Fuel Mix Disclosure) Regulations 2005.