Electricity Live

Great Britain’s electricity on Tuesday 3 August 2021

On Tuesday 3 August, demand averaged 28.6 GW. Renewables supplied 12%.

28.6GW AVERAGEWind1.04 GW4%Hydro0.17 GW1%Biomass2.86 GW10%Solar2.38 GW8%Gas13.43 GW45%Coal0.76 GW3%Imports4.61 GW16%Nuclear4.29 GW15%28.6GW AVERAGE10%8%45%16%15%
Price
£97.21/MWh
Day average £97.21
Demand28.6GW
Generation 24.9Transfers 3.6
Fossil fuels45%
Renewables12%
Other40%
Carbon intensityHigh
239g/kWh
0Day average 239300
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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 3 August 2021, gas supplied 45% of Great Britain’s electricity and nuclear 15%. Demand peaked at 34.6 GW at 13:00. Carbon intensity averaged 239 g/kWh and the price £97.21/MWh. Wind generation peaked at 1.8 GW at 20:55. Solar generation peaked at 7.1 GW at 13:00. Carbon intensity was lowest at 11:30 (217 g/kWh) and highest at 21:30 (268 g/kWh). The wholesale price ranged from £73.72/MWh at 02:30 to £116.50/MWh at 18:00. Gas made 54% 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 2.388.1%Wind 1.043.5%Gas 13.4345.5%Hydro 0.170.6%Biomass 2.869.7%Nuclear 4.2914.5%Coal 0.762.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.6avgGeneration 24.9avgTransfers 3.6avg
The day in figurespeaks, averages, totals
Peak demand34.6GW · 13:00
Low 19.8 · 03:40Avg 28.60–40 GW
Made in Great Britain87%of demand
Generation 24.9Transfers 3.6 GW
Net imports87GWh
In
108 Out
20
Zero-carbon share32%of generation
Nuclear 17%Hydro 1%Wind 4%Solar 10%

Transfers · Tue 3 Aug

Interconnectors and storage

On Tuesday 3 August 2021, Great Britain imported 108 GWh and exported 20 GWh through its interconnectors. The most came from France (65 GWh), and the most exports went to Ireland (20 GWh).

All interconnectors

Tue 3 Aug
Imported
108GWh
Exported
20GWh
Net in
87GWh
Average net flow
3.63GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.91GWImporting

In 21.7 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.70GWImporting

In 64.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.85GWExporting

In 0.0 GWhOut 20.4 GWh

Netherlands

BritNed

Average0.87GWImporting

In 21.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.00GWIdle

Generated 3.1 GWhPumped 3.1 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.