Electricity Live

Great Britain’s electricity on Tuesday 10 August 2021

On Tuesday 10 August, demand averaged 28.8 GW. Renewables supplied 17%.

28.8GW AVERAGEWind2.47 GW8%Hydro0.18 GW1%Biomass2.13 GW7%Solar2.41 GW8%Gas12.90 GW43%Coal0.63 GW2%Imports4.83 GW16%Nuclear4.11 GW14%28.8GW AVERAGE8%7%8%43%16%14%
Price
£103.95/MWh
Day average £103.95
Demand28.8GW
Generation 24.8Transfers 4.0
Fossil fuels43%
Renewables17%
Other37%
Carbon intensityHigh
221g/kWh
0Day average 221300
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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 10 August 2021, gas supplied 43% of Great Britain’s electricity and nuclear 14%. Demand peaked at 35.8 GW at 12:30. Carbon intensity averaged 221 g/kWh and the price £103.95/MWh. Wind generation peaked at 4.2 GW at 01:00. Solar generation peaked at 7.6 GW at 13:00. Carbon intensity was lowest at 02:30 (177 g/kWh) and highest at 21:30 (269 g/kWh). The wholesale price ranged from £73.11/MWh at 01:30 to £131.19/MWh at 08:30. Gas made 52% 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 2.418.1%Wind 2.478.3%Gas 12.9043.5%Hydro 0.180.6%Biomass 2.137.2%Nuclear 4.1113.9%Coal 0.632.1%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.8avgGeneration 24.8avgTransfers 4.0avg
The day in figurespeaks, averages, totals
Peak demand35.8GW · 12:30
Low 20.3 · 03:35Avg 28.80–40 GW
Made in Great Britain86%of demand
Generation 24.8Transfers 4.0 GW
Net imports93GWh
In
110 Out
18
Zero-carbon share37%of generation
Nuclear 17%Hydro 1%Wind 10%Solar 10%

Transfers · Tue 10 Aug

Interconnectors and storage

On Tuesday 10 August 2021, Great Britain imported 110 GWh and exported 18 GWh through its interconnectors. The most came from France (66 GWh), and the most exports went to Ireland (18 GWh).

All interconnectors

Tue 10 Aug
Imported
110GWh
Exported
18GWh
Net in
93GWh
Average net flow
3.86GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.92GWImporting

In 22.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.75GWImporting

In 66.1 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.73GWExporting

In 0.0 GWhOut 17.6 GWh

Netherlands

BritNed

Average0.92GWImporting

In 22.1 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.11GWGenerating

Generated 5.6 GWhPumped 2.9 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.