Built 2026-09-20 (20 September 2026)

Great Britain Electricity Demand and Generation Mix

Great Britain's most recent reported day is 2021-06-13 (13 June 2021), with demand of 677 GWh. Operator data is hourly and provisional, and may be revised.

The latest data ENTSO-E holds for Great Britain is for 2021-06-13 (13 June 2021). This page is a historical record and is not being updated.

Key Facts

  • Great Britain is a bidding zone of the European electricity market, with one wholesale price per market interval.
  • The day-ahead price in Great Britain averaged GBP 66.00/MWh for delivery on 2020-12-30 (30 December 2020).
  • Installed generating capacity in Great Britain was 107 GW in 2021, as reported to ENTSO-E.
  • Demand in Great Britain totalled 276 TWh in 2020.
  • Gas supplied 39.9% of Great Britain's generation in 2020.

Day-Ahead Price

Delivery day 2020-12-30 (30 December 2020), local time
AverageGBP 66.00/MWh
LowGBP 47.18/MWh
HighGBP 159.91/MWh
Hours below zero0.00

Prices are in GBP per MWh as published, not converted. Full price history for Great Britain and day-ahead prices in every bidding zone.

Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) Data as of 2020-12-30.

Installed Capacity

Annual figure for 2021
Great Britain installed generating capacity by source in 2021, in GW
Gas39.8 GW (37%)
Wind25.1 GW (23%)
Solar13.4 GW (12%)
Nuclear8.26 GW (8%)
Coal5.24 GW (5%)
Bioenergy4.53 GW (4%)
Storage4.31 GW (4%)
Other2.81 GW (3%)
Hydro1.92 GW (2%)
Other renewables1.90 GW (2%)

Total installed capacity in Great Britain: 107 GW in 2021. Capacity is what could be produced, not what was produced, and each transmission operator reports it once a year.

Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) Data as of 2021.

Day by Day

Daily totals, Europe/London time dates, through 2021-06-13
Great Britain daily electricity demand, 2020-05-10 to 2021-06-13 Daily demand in Great Britain from 2020-05-10 (10 May 2020) to 2021-06-13 (13 June 2021), in GWh. The highest day was 2021-02-11 (11 February 2021) at 1.04 TWh; the average was 774 GWh a day. 0 300 600 900 1,200 May 2020Jul 2020Sep 2020Nov 2020Jan 2021Mar 2021May 2021
Daily demand in Great Britain from 2020-05-10 (10 May 2020) to 2021-06-13 (13 June 2021), in GWh. The highest day was 2021-02-11 (11 February 2021) at 1.04 TWh; the average was 774 GWh a day.
Daily totals through 2021-06-13, GWh
Great Britain daily electricity demand, 2020-05-10 to 2021-06-13
Date (Europe/London time)Demand
2020-05-10580 GWh
2020-05-11655 GWh
2020-05-12733 GWh
2020-05-13726 GWh
2020-05-14732 GWh
2020-05-15715 GWh
2020-05-16656 GWh
2020-05-17637 GWh
2020-05-18658 GWh
2020-05-19708 GWh
2020-05-20711 GWh
2020-05-21693 GWh
2020-05-22546 GWh
2020-05-23490 GWh
2020-05-24549 GWh
2020-05-25603 GWh
2020-05-26690 GWh
2020-05-27694 GWh
2020-05-28711 GWh
2020-05-29692 GWh
2020-05-30611 GWh
2020-05-31607 GWh
2020-06-01696 GWh
2020-06-02668 GWh
2020-06-03653 GWh
2020-06-04679 GWh
2020-06-05662 GWh
2020-06-06587 GWh
2020-06-07642 GWh
2020-06-08682 GWh
2020-06-09674 GWh
2020-06-10708 GWh
2020-06-11703 GWh
2020-06-12691 GWh
2020-06-13648 GWh
2020-06-14651 GWh
2020-06-15697 GWh
2020-06-16629 GWh
2020-06-17641 GWh
2020-06-18673 GWh
2020-06-19684 GWh
2020-06-20645 GWh
2020-06-21573 GWh
2020-06-22692 GWh
2020-06-23633 GWh
2020-06-24603 GWh
2020-06-25626 GWh
2020-06-26650 GWh
2020-06-27624 GWh
2020-06-28496 GWh
2020-06-29607 GWh
2020-06-30637 GWh
2020-07-01650 GWh
2020-07-02612 GWh
2020-07-03635 GWh
2020-07-04600 GWh
2020-07-05543 GWh
2020-07-06657 GWh
2020-07-07677 GWh
2020-07-08637 GWh
2020-07-09630 GWh
2020-07-10639 GWh
2020-07-11650 GWh
2020-07-12653 GWh
2020-07-13651 GWh
2020-07-14651 GWh
2020-07-15621 GWh
2020-07-16640 GWh
2020-07-17639 GWh
2020-07-18660 GWh
2020-07-19639 GWh
2020-07-20646 GWh
2020-07-21642 GWh
2020-07-22585 GWh
2020-07-23621 GWh
2020-07-24665 GWh
2020-07-25646 GWh
2020-07-26611 GWh
2020-07-27659 GWh
2020-07-28637 GWh
2020-07-29669 GWh
2020-07-30661 GWh
2020-07-31659 GWh
2020-08-01660 GWh
2020-08-02636 GWh
2020-08-03676 GWh
2020-08-04655 GWh
2020-08-05662 GWh
2020-08-06729 GWh
2020-08-07700 GWh
2020-08-08692 GWh
2020-08-09670 GWh
2020-08-10724 GWh
2020-08-11747 GWh
2020-08-12775 GWh
2020-08-13725 GWh
2020-08-14716 GWh
2020-08-15687 GWh
2020-08-16687 GWh
2020-08-17741 GWh
2020-08-18713 GWh
2020-08-19741 GWh
2020-08-20695 GWh
2020-08-21687 GWh
2020-08-22603 GWh
2020-08-23645 GWh
2020-08-24n/a
2020-08-25697 GWh
2020-08-26702 GWh
2020-08-27731 GWh
2020-08-28716 GWh
2020-08-29651 GWh
2020-08-30666 GWh
2020-08-31641 GWh
2020-09-01694 GWh
2020-09-02698 GWh
2020-09-03716 GWh
2020-09-04714 GWh
2020-09-05652 GWh
2020-09-06687 GWh
2020-09-07728 GWh
2020-09-08731 GWh
2020-09-09693 GWh
2020-09-10693 GWh
2020-09-11669 GWh
2020-09-12643 GWh
2020-09-13631 GWh
2020-09-14702 GWh
2020-09-15688 GWh
2020-09-16672 GWh
2020-09-17710 GWh
2020-09-18722 GWh
2020-09-19683 GWh
2020-09-20687 GWh
2020-09-21684 GWh
2020-09-22686 GWh
2020-09-23734 GWh
2020-09-24781 GWh
2020-09-25753 GWh
2020-09-26690 GWh
2020-09-27723 GWh
2020-09-28781 GWh
2020-09-29785 GWh
2020-09-30754 GWh
2020-10-01775 GWh
2020-10-02796 GWh
2020-10-03752 GWh
2020-10-04760 GWh
2020-10-05812 GWh
2020-10-06814 GWh
2020-10-07776 GWh
2020-10-08804 GWh
2020-10-09806 GWh
2020-10-10747 GWh
2020-10-11724 GWh
2020-10-12829 GWh
2020-10-13843 GWh
2020-10-14802 GWh
2020-10-15807 GWh
2020-10-16814 GWh
2020-10-17791 GWh
2020-10-18767 GWh
2020-10-19836 GWh
2020-10-20827 GWh
2020-10-21853 GWh
2020-10-22805 GWh
2020-10-23835 GWh
2020-10-24747 GWh
2020-10-25752 GWh
2020-10-26828 GWh
2020-10-27887 GWh
2020-10-28855 GWh
2020-10-29875 GWh
2020-10-30803 GWh
2020-10-31734 GWh
2020-11-01715 GWh
2020-11-02815 GWh
2020-11-03880 GWh
2020-11-04900 GWh
2020-11-05889 GWh
2020-11-06890 GWh
2020-11-07827 GWh
2020-11-08814 GWh
2020-11-09861 GWh
2020-11-10846 GWh
2020-11-11832 GWh
2020-11-12832 GWh
2020-11-13821 GWh
2020-11-14777 GWh
2020-11-15740 GWh
2020-11-16835 GWh
2020-11-17828 GWh
2020-11-18824 GWh
2020-11-19860 GWh
2020-11-20879 GWh
2020-11-21748 GWh
2020-11-22771 GWh
2020-11-23n/a
2020-11-24824 GWh
2020-11-25866 GWh
2020-11-26860 GWh
2020-11-27882 GWh
2020-11-28843 GWh
2020-11-29826 GWh
2020-11-30842 GWh
2020-12-01888 GWh
2020-12-02880 GWh
2020-12-03947 GWh
2020-12-04940 GWh
2020-12-05885 GWh
2020-12-06867 GWh
2020-12-07929 GWh
2020-12-08944 GWh
2020-12-09931 GWh
2020-12-10884 GWh
2020-12-11879 GWh
2020-12-12849 GWh
2020-12-13866 GWh
2020-12-14869 GWh
2020-12-15895 GWh
2020-12-16904 GWh
2020-12-17872 GWh
2020-12-18n/a
2020-12-19776 GWh
2020-12-20782 GWh
2020-12-21858 GWh
2020-12-22860 GWh
2020-12-23878 GWh
2020-12-24818 GWh
2020-12-25799 GWh
2020-12-26720 GWh
2020-12-27764 GWh
2020-12-28856 GWh
2020-12-29888 GWh
2020-12-30875 GWh
2020-12-31907 GWh
2021-01-01839 GWh
2021-01-02849 GWh
2021-01-03852 GWh
2021-01-04928 GWh
2021-01-05941 GWh
2021-01-06968 GWh
2021-01-07965 GWh
2021-01-08958 GWh
2021-01-09910 GWh
2021-01-10892 GWh
2021-01-11885 GWh
2021-01-12936 GWh
2021-01-13967 GWh
2021-01-14946 GWh
2021-01-15964 GWh
2021-01-16849 GWh
2021-01-17825 GWh
2021-01-18890 GWh
2021-01-19891 GWh
2021-01-20878 GWh
2021-01-21915 GWh
2021-01-22922 GWh
2021-01-23n/a
2021-01-24912 GWh
2021-01-25933 GWh
2021-01-261.00 TWh
2021-01-27945 GWh
2021-01-28931 GWh
2021-01-29890 GWh
2021-01-30860 GWh
2021-01-31n/a
2021-02-01987 GWh
2021-02-02952 GWh
2021-02-03947 GWh
2021-02-04947 GWh
2021-02-05918 GWh
2021-02-06867 GWh
2021-02-07878 GWh
2021-02-081.01 TWh
2021-02-091.03 TWh
2021-02-101.02 TWh
2021-02-111.04 TWh
2021-02-12992 GWh
2021-02-13952 GWh
2021-02-14920 GWh
2021-02-15950 GWh
2021-02-16866 GWh
2021-02-17886 GWh
2021-02-18847 GWh
2021-02-19886 GWh
2021-02-20787 GWh
2021-02-21808 GWh
2021-02-22915 GWh
2021-02-23857 GWh
2021-02-24816 GWh
2021-02-25868 GWh
2021-02-26909 GWh
2021-02-27817 GWh
2021-02-28816 GWh
2021-03-01911 GWh
2021-03-02917 GWh
2021-03-03925 GWh
2021-03-04919 GWh
2021-03-05923 GWh
2021-03-06864 GWh
2021-03-07845 GWh
2021-03-08n/a
2021-03-09881 GWh
2021-03-10877 GWh
2021-03-11869 GWh
2021-03-12853 GWh
2021-03-13810 GWh
2021-03-14779 GWh
2021-03-15861 GWh
2021-03-16860 GWh
2021-03-17871 GWh
2021-03-18859 GWh
2021-03-19844 GWh
2021-03-20795 GWh
2021-03-21783 GWh
2021-03-22853 GWh
2021-03-23856 GWh
2021-03-24839 GWh
2021-03-25848 GWh
2021-03-26817 GWh
2021-03-27753 GWh
2021-03-28683 GWh
2021-03-29767 GWh
2021-03-30797 GWh
2021-03-31776 GWh
2021-04-01799 GWh
2021-04-02783 GWh
2021-04-03753 GWh
2021-04-04704 GWh
2021-04-05719 GWh
2021-04-06864 GWh
2021-04-07871 GWh
2021-04-08753 GWh
2021-04-09839 GWh
2021-04-10796 GWh
2021-04-11797 GWh
2021-04-12836 GWh
2021-04-13827 GWh
2021-04-14809 GWh
2021-04-15812 GWh
2021-04-16832 GWh
2021-04-17763 GWh
2021-04-18n/a
2021-04-19746 GWh
2021-04-20732 GWh
2021-04-21769 GWh
2021-04-22799 GWh
2021-04-23788 GWh
2021-04-24725 GWh
2021-04-25712 GWh
2021-04-26790 GWh
2021-04-27806 GWh
2021-04-28812 GWh
2021-04-29819 GWh
2021-04-30785 GWh
2021-05-01721 GWh
2021-05-02702 GWh
2021-05-03769 GWh
2021-05-04817 GWh
2021-05-05833 GWh
2021-05-06821 GWh
2021-05-07815 GWh
2021-05-08773 GWh
2021-05-09735 GWh
2021-05-10796 GWh
2021-05-11812 GWh
2021-05-12796 GWh
2021-05-13780 GWh
2021-05-14798 GWh
2021-05-15744 GWh
2021-05-16733 GWh
2021-05-17793 GWh
2021-05-18771 GWh
2021-05-19785 GWh
2021-05-20n/a
2021-05-21782 GWh
2021-05-22746 GWh
2021-05-23740 GWh
2021-05-24829 GWh
2021-05-25807 GWh
2021-05-26812 GWh
2021-05-27792 GWh
2021-05-28755 GWh
2021-05-29682 GWh
2021-05-30661 GWh
2021-05-31687 GWh
2021-06-01738 GWh
2021-06-02743 GWh
2021-06-03775 GWh
2021-06-04760 GWh
2021-06-05675 GWh
2021-06-06682 GWh
2021-06-07767 GWh
2021-06-08793 GWh
2021-06-09789 GWh
2021-06-10802 GWh
2021-06-11758 GWh
2021-06-12667 GWh
2021-06-13677 GWh

Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) Data as of 2021-06-13. Daily totals are summed by World Power Monitor from complete Europe/London local days.

Year by Year

Summed from ENTSO-E daily operator data
YearDemandNet generationLargest sourceDays reported
2021 (partial) 133 TWh 111 TWh Gas 44.4% 164
2020 276 TWh 234 TWh Gas 39.9% 366
2019 (partial) 293 TWh 247 TWh Gas 45.2% 362
2018 (partial) 301 TWh 239 TWh Gas 42.2% 364
2017 (partial) 296 TWh 209 TWh Gas 40.7% 362
2016 324 TWh 243 TWh Gas 43.6% 366
2015 326 TWh 267 TWh Gas 30.2% 365

A year is partial when ENTSO-E has not published every day; 2020 is the latest complete year. Operator totals differ slightly from annual statistics, which are compiled later from plant surveys. Demand and net generation are summed over the days each was reported, so in a year with gaps the two columns can cover different days.

Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) Data as of 2021-06-13.

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Figures as of 2021-06-13 (13 June 2021)

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