Electricity Live

Great Britain’s electricity on Wednesday 28 July 2021

On Wednesday 28 July, demand averaged 28.8 GW. Renewables supplied 31%.

28.8GW AVERAGEWind7.00 GW24%Hydro0.14 GW0%Biomass2.89 GW10%Solar1.93 GW7%Gas9.07 GW31%Coal0.62 GW2%Imports4.03 GW14%Nuclear3.55 GW12%28.8GW AVERAGE24%10%31%14%12%
Price
£97.09/MWh
Day average £97.09
Demand28.8GW
Generation 25.2Transfers 3.6
Fossil fuels31%
Renewables31%
Other36%
Carbon intensityModerate
168g/kWh
0Day average 168300
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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 28 July 2021, gas supplied 31% of Great Britain’s electricity and wind 24%. Demand peaked at 34.9 GW at 14:00. Carbon intensity averaged 168 g/kWh and the price £97.09/MWh. Wind generation peaked at 11.3 GW at 23:55. Solar generation peaked at 6.3 GW at 14:00. Carbon intensity was lowest at 23:30 (104 g/kWh) and highest at 00:00 (206 g/kWh). The wholesale price ranged from £68.91/MWh at 04:30 to £111.23/MWh at 19:00. Gas made 36% 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 1.936.6%Wind 7.0024.0%Gas 9.0731.0%Hydro 0.140.5%Biomass 2.899.9%Nuclear 3.5512.1%Coal 0.622.1%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.8avgGeneration 25.2avgTransfers 3.6avg
The day in figurespeaks, averages, totals
Peak demand34.9GW · 14:00
Low 20.5 · 04:25Avg 28.80–40 GW
Made in Great Britain88%of demand
Generation 25.2Transfers 3.6 GW
Net imports87GWh
In
95 Out
8
Zero-carbon share50%of generation
Nuclear 14%Hydro 1%Wind 28%Solar 8%

Transfers · Wed 28 Jul

Interconnectors and storage

On Wednesday 28 July 2021, Great Britain imported 95 GWh and exported 8 GWh through its interconnectors. The most came from France (55 GWh), and the most exports went to Ireland (8 GWh).

All interconnectors

Wed 28 Jul
Imported
95GWh
Exported
8GWh
Net in
87GWh
Average net flow
3.62GW 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

Average2.30GWImporting

In 55.1 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.31GWExporting

In 0.5 GWhOut 7.8 GWh

Netherlands

BritNed

Average0.75GWImporting

In 18.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.03GWPumping

Generated 2.1 GWhPumped 2.8 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.