Electricity Live

Great Britain’s electricity on Wednesday 25 August 2021

On Wednesday 25 August, demand averaged 29.6 GW. Renewables supplied 17%.

29.6GW AVERAGEWind3.35 GW11%Hydro0.19 GW1%Biomass1.90 GW6%Solar1.71 GW6%Gas12.74 GW42%Coal0.20 GW1%Imports4.79 GW16%Nuclear5.17 GW17%29.6GW AVERAGE11%42%16%17%
Price
£115.86/MWh
Day average £115.86
Demand29.6GW
Generation 25.3Transfers 4.3
Fossil fuels42%
Renewables17%
Other39%
Carbon intensityModerate
200g/kWh
0Day average 200300
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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 Wednesday 25 August 2021, gas supplied 42% of Great Britain’s electricity and nuclear 17%. Demand peaked at 35.1 GW at 13:05. Carbon intensity averaged 200 g/kWh and the price £115.86/MWh. Wind generation peaked at 6.6 GW at 23:30. Solar generation peaked at 5.8 GW at 13:30. Carbon intensity was lowest at 23:30 (147 g/kWh) and highest at 07:30 (233 g/kWh). The wholesale price ranged from £79.91/MWh at 03:00 to £141.61/MWh at 12:30. Gas made 50% 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 1.715.7%Wind 3.3511.1%Gas 12.7442.4%Hydro 0.190.6%Biomass 1.906.3%Nuclear 5.1717.2%Coal 0.200.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.6avgGeneration 25.3avgTransfers 4.3avg
The day in figurespeaks, averages, totals
Peak demand35.1GW · 13:05
Low 21.0 · 03:40Avg 29.60–40 GW
Made in Great Britain85%of demand
Generation 25.3Transfers 4.3 GW
Net imports106GWh
In
112 Out
6
Zero-carbon share41%of generation
Nuclear 20%Hydro 1%Wind 13%Solar 7%

Transfers · Wed 25 Aug

Interconnectors and storage

On Wednesday 25 August 2021, Great Britain imported 112 GWh and exported 6 GWh through its interconnectors. The most came from France (68 GWh), and the most exports went to Ireland (6 GWh).

All interconnectors

Wed 25 Aug
Imported
112GWh
Exported
6GWh
Net in
106GWh
Average net flow
4.41GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.95GWImporting

In 22.7 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.83GWImporting

In 67.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.25GWExporting

In 0.4 GWhOut 6.4 GWh

Netherlands

BritNed

Average0.89GWImporting

In 21.4 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.10GWPumping

Generated 2.6 GWhPumped 5.0 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.