Electricity Live

Great Britain’s electricity on Wednesday 11 August 2021

On Wednesday 11 August, demand averaged 29.1 GW. Renewables supplied 25%.

29.1GW AVERAGEWind5.39 GW18%Hydro0.17 GW1%Biomass2.02 GW7%Solar1.92 GW6%Gas10.26 GW35%Coal0.84 GW3%Imports4.88 GW16%Nuclear4.11 GW14%29.1GW AVERAGE18%35%16%14%
Price
£102.71/MWh
Day average £102.71
Demand29.1GW
Generation 24.7Transfers 4.4
Fossil fuels35%
Renewables25%
Other37%
Carbon intensityModerate
203g/kWh
0Day average 203300
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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 11 August 2021, gas supplied 35% of Great Britain’s electricity and wind 18%. Demand peaked at 35.5 GW at 12:20. Carbon intensity averaged 203 g/kWh and the price £102.71/MWh. Wind generation peaked at 9.4 GW at 17:30. Solar generation peaked at 5.9 GW at 12:00. Carbon intensity was lowest at 13:30 (152 g/kWh) and highest at 00:00 (240 g/kWh). The wholesale price ranged from £79.39/MWh at 04:30 to £130.95/MWh at 21:00. Gas made 41% 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 1.926.5%Wind 5.3918.2%Gas 10.2634.7%Hydro 0.170.6%Biomass 2.026.8%Nuclear 4.1113.9%Coal 0.842.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.1avgGeneration 24.7avgTransfers 4.4avg
The day in figurespeaks, averages, totals
Peak demand35.5GW · 12:20
Low 20.4 · 03:50Avg 29.10–40 GW
Made in Great Britain85%of demand
Generation 24.7Transfers 4.4 GW
Net imports106GWh
In
114 Out
7
Zero-carbon share47%of generation
Nuclear 17%Hydro 1%Wind 22%Solar 8%

Transfers · Wed 11 Aug

Interconnectors and storage

On Wednesday 11 August 2021, Great Britain imported 114 GWh and exported 7 GWh through its interconnectors. The most came from France (66 GWh), and the most exports went to Ireland (7 GWh).

All interconnectors

Wed 11 Aug
Imported
114GWh
Exported
7GWh
Net in
106GWh
Average net flow
4.44GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.89GWImporting

In 21.4 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.75GWImporting

In 66.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.11GWExporting

In 4.4 GWhOut 7.0 GWh

Netherlands

BritNed

Average0.90GWImporting

In 21.6 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.03GWPumping

Generated 3.6 GWhPumped 4.4 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.