Electricity Live

Great Britain’s electricity on Tuesday 25 May 2021

On Tuesday 25 May, demand averaged 31.8 GW. Renewables supplied 30%.

31.8GW AVERAGEWind7.66 GW24%Hydro0.39 GW1%Biomass2.54 GW8%Solar1.66 GW5%Gas11.14 GW34%Imports3.86 GW12%Nuclear5.17 GW16%31.8GW AVERAGE24%8%34%12%16%
Price
£86.24/MWh
Day average £86.24
Demand31.8GW
Generation 28.6Transfers 3.2
Fossil fuels34%
Renewables30%
Other36%
Carbon intensityModerate
147g/kWh
0Day average 147300
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Recorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hour

Key moments

On Tuesday 25 May 2021, gas supplied 34% of Great Britain’s electricity and wind 24%. Demand peaked at 38.1 GW at 12:20. Carbon intensity averaged 147 g/kWh and the price £86.24/MWh. Wind generation peaked at 10.3 GW at 04:45. Solar generation peaked at 4.5 GW at 14:00. Carbon intensity was lowest at 03:30 (81 g/kWh) and highest at 20:30 (203 g/kWh). The wholesale price ranged from £46.60/MWh at 04:00 to £120.72/MWh at 17:30. Gas made 39% of the electricity generated in Great Britain, compared with 42% across 2021.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 1.665.1%Wind 7.6623.6%Gas 11.1434.4%Hydro 0.391.2%Biomass 2.547.8%Nuclear 5.1715.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.8avgGeneration 28.6avgTransfers 3.2avg
The day in figurespeaks, averages, totals
Peak demand38.1GW · 12:20
Low 22.7 · 04:25Avg 31.80–40 GW
Made in Great Britain90%of demand
Generation 28.6Transfers 3.2 GW
Net imports75GWh
In
86 Out
11
Zero-carbon share52%of generation
Nuclear 18%Hydro 1%Wind 27%Solar 6%

Transfers · Tue 25 May

Interconnectors and storage

On Tuesday 25 May 2021, Great Britain imported 86 GWh and exported 11 GWh through its interconnectors. The most came from France (63 GWh), and the most exports went to Ireland (11 GWh).

All interconnectors

Tue 25 May
Imported
86GWh
Exported
11GWh
Net in
75GWh
Average net flow
3.13GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.88GWImporting

In 21.2 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.63GWImporting

In 63.2 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.39GWExporting

In 1.7 GWhOut 11.0 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.1 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.11GWGenerating

Generated 6.6 GWhPumped 4.0 GWh

All cards share one scale, so you can compare their heights. Each country can have more than one cable.

Download the 5-minute data for this day: CSV · JSON. See what the figures mean.