How we generated electricity in May

In May, 44% of electricity came from zero carbon sources, peaking at 80% on 4 May at 11am. 

Gas was our largest source of fuel, with 34% of electricity being generated by gas. Wind was our second largest power source, attributing 19.6% of generation in May.

For the first time this year, 0% of generation came from coal in May, allowing us to achieve 560 consecutive hours without coal. This is a great step towards our ambition of delivering periods of 100% zero carbon operations by 2025 and a zero carbon electricity system by 2035.

If you have any questions about these figures, please contact the ESO at [email protected].

Craig Dyke  
Head of National Control

Find out about Great Britain's electricity generation and how much came from sources such as wind, solar and biomass in our monthly snapshot.

Our control room experts continue to balance supply and demand second by second as we move into the spring months – and you can follow the electricity mix live in our carbon intensity app - available on Google Play Store and The App Store.

Electricity Explained May 1
Electricity Explained May 2
Electricity Explained May 3
Electricity Explained May 4