Electricity Live

Great Britain’s electricity on Sunday 15 August 2021

On Sunday 15 August, demand averaged 25.9 GW. Renewables supplied 27%.

25.9GW AVERAGEWind5.15 GW20%Hydro0.23 GW1%Biomass1.65 GW6%Solar1.69 GW6%Gas8.59 GW33%Coal0.49 GW2%Imports4.20 GW16%Nuclear4.11 GW16%25.9GW AVERAGE20%33%16%16%
Price
£104.95/MWh
Day average £104.95
Demand25.9GW
Generation 21.9Transfers 4.0
Fossil fuels33%
Renewables27%
Other38%
Carbon intensityModerate
176g/kWh
0Day average 176300
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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 Sunday 15 August 2021, gas supplied 33% of Great Britain’s electricity and wind 20%. Demand peaked at 31.4 GW at 17:25. Carbon intensity averaged 176 g/kWh and the price £104.95/MWh. Wind generation peaked at 11.0 GW at 23:20. Solar generation peaked at 5.5 GW at 13:00. Carbon intensity was lowest at 23:30 (87 g/kWh) and highest at 01:30 (227 g/kWh). The wholesale price ranged from £55.65/MWh at 06:00 to £121.67/MWh at 17:00. 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 1.696.5%Wind 5.1519.7%Gas 8.5932.9%Hydro 0.230.9%Biomass 1.656.3%Nuclear 4.1115.7%Coal 0.491.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 25.9avgGeneration 21.9avgTransfers 4.0avg
The day in figurespeaks, averages, totals
Peak demand31.4GW · 17:25
Low 19.0 · 04:40Avg 25.90–40 GW
Made in Great Britain85%of demand
Generation 21.9Transfers 4.0 GW
Net imports98GWh
In
99 Out
1
Zero-carbon share51%of generation
Nuclear 19%Hydro 1%Wind 23%Solar 8%

Transfers · Sun 15 Aug

Interconnectors and storage

On Sunday 15 August 2021, Great Britain imported 99 GWh and exported 1 GWh through its interconnectors. The most came from France (57 GWh), and the most exports went to Ireland (1 GWh).

All interconnectors

Sun 15 Aug
Imported
99GWh
Exported
1GWh
Net in
98GWh
Average net flow
4.07GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.79GWImporting

In 18.9 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.36GWImporting

In 56.5 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.14GWImporting

In 4.7 GWhOut 1.3 GWh

Netherlands

BritNed

Average0.79GWImporting

In 18.9 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.06GWPumping

Generated 1.6 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.