Where the electricity comes from
June 2023
46% of GB electricity came from zero-carbon sources, peaking at 80% on 7 June at 10 am. Gas remains our main source of electricity, meeting 36.9% of demand, with wind in second place at 19.2%. The average carbon intensity was 166gCO2/kWh. 0.3% of electricity still comes from coal - ESO instructed Uniper to fire up two back-up coal-fired power units to cope with additional electricity demand during the heatwave. One unit generated power for most of Monday 12 June with the second coming online to help cover the evening peak in demand. For details for June and previous months use the link in the sidebar.
Note here we say 'GB electricity' not 'UK electricity', because NI shares a grid with RoI.
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Gridwatch
Gridwatch is a site that provides near-real-time data on GB generation and CO2 emissions, by overall demand and by generation type. For example, this is the mix for June 2023 (gas in light brown, solar in yellow, wind in light blue). Mouseover the graph online to see the full colour key.
