Electricity Live

Great Britain’s electricity on Sunday 18 July 2021

On Sunday 18 July, demand averaged 26.4 GW. Renewables supplied 18%.

26.4GW AVERAGEWind1.72 GW6%Hydro0.14 GW1%Biomass1.73 GW6%Solar3.09 GW11%Gas10.45 GW39%Coal0.58 GW2%Imports4.46 GW16%Nuclear4.89 GW18%26.4GW AVERAGE11%39%16%18%
Price
£98.05/MWh
Day average £98.05
Demand26.4GW
Generation 22.6Transfers 3.8
Fossil fuels39%
Renewables18%
Other41%
Carbon intensityModerate
204g/kWh
0Day average 204300
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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 18 July 2021, gas supplied 39% of Great Britain’s electricity and nuclear 18%. Demand peaked at 31.3 GW at 12:10. Carbon intensity averaged 204 g/kWh and the price £98.05/MWh. Wind generation peaked at 3.6 GW at 00:00. Solar generation peaked at 8.9 GW at 13:00. Carbon intensity was lowest at 13:00 (173 g/kWh) and highest at 22:30 (264 g/kWh). The wholesale price ranged from £76.96/MWh at 00:30 to £124.26/MWh at 18:30. Gas made 46% 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 3.0911.4%Wind 1.726.3%Gas 10.4538.6%Hydro 0.140.5%Biomass 1.736.4%Nuclear 4.8918.1%Coal 0.582.1%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 26.4avgGeneration 22.6avgTransfers 3.8avg
The day in figurespeaks, averages, totals
Peak demand31.3GW · 12:10
Low 19.0 · 05:25Avg 26.40–40 GW
Made in Great Britain86%of demand
Generation 22.6Transfers 3.8 GW
Net imports89GWh
In
102 Out
13
Zero-carbon share44%of generation
Nuclear 22%Hydro 1%Wind 8%Solar 14%

Transfers · Sun 18 Jul

Interconnectors and storage

On Sunday 18 July 2021, Great Britain imported 102 GWh and exported 13 GWh through its interconnectors. The most came from France (60 GWh), and the most exports went to Ireland (13 GWh).

All interconnectors

Sun 18 Jul
Imported
102GWh
Exported
13GWh
Net in
89GWh
Average net flow
3.69GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.88GWImporting

In 21.1 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.48GWImporting

In 59.6 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.55GWExporting

In 0.0 GWhOut 13.1 GWh

Netherlands

BritNed

Average0.88GWImporting

In 21.1 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.10GWGenerating

Generated 5.2 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.