Electricity Live

Great Britain’s electricity on Friday 21 July 2023

On Friday 21 July, demand averaged 26.5 GW. Renewables supplied 21%.

26.5GW AVERAGEWind3.40 GW12%Hydro0.27 GW1%Biomass1.84 GW7%Solar2.27 GW8%Gas12.69 GW46%Coal0.29 GW1%Imports2.67 GW10%Nuclear4.42 GW16%26.5GW AVERAGE12%8%46%10%16%
Price
£79.71/MWh
Day average £79.71
Demand26.5GW
Generation 25.2Transfers 1.4
Fossil fuels46%
Renewables21%
Other32%
Carbon intensityHigh
210g/kWh
0Day average 210300
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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 Friday 21 July 2023, gas supplied 46% of Great Britain’s electricity and nuclear 16%. Demand peaked at 32.8 GW at 11:10. Carbon intensity averaged 210 g/kWh and the price £79.71/MWh. Wind generation peaked at 4.7 GW at 11:40. Solar generation peaked at 6.8 GW at 11:00. Carbon intensity was lowest at 11:30 (179 g/kWh) and highest at 02:30 (242 g/kWh). The wholesale price ranged from £67.61/MWh at 16:00 to £96.24/MWh at 07:30. Gas made 50% of the electricity generated in Great Britain, compared with 36% across 2023.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 2.278.2%Wind 3.4012.2%Gas 12.6945.6%Hydro 0.271.0%Biomass 1.846.6%Nuclear 4.4215.9%Coal 0.291.0%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 26.5avgGeneration 25.2avgTransfers 1.4avg
The day in figurespeaks, averages, totals
Peak demand32.8GW · 11:10
Low 19.3 · 04:25Avg 26.50–40 GW
Made in Great Britain95%of demand
Generation 25.2Transfers 1.4 GW
Net imports32GWh
In
62 Out
30
Zero-carbon share41%of generation
Nuclear 18%Hydro 1%Wind 14%Solar 9%

Transfers · Fri 21 Jul

Interconnectors and storage

On Friday 21 July 2023, Great Britain imported 62 GWh and exported 30 GWh through its interconnectors. The most came from Norway (27 GWh), and the most exports went to Ireland (10 GWh).

All interconnectors

Fri 21 Jul
Imported
62GWh
Exported
30GWh
Net in
32GWh
Average net flow
1.32GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.07GWImporting

In 7.3 GWhOut 5.6 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.61GWImporting

In 19.8 GWhOut 5.1 GWh

Ireland

Moyle · East–West · Greenlink

Average0.35GWExporting

In 1.9 GWhOut 10.4 GWh

Netherlands

BritNed

Average0.15GWExporting

In 5.4 GWhOut 8.9 GWh

Norway

North Sea Link

Average1.14GWImporting

In 27.3 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.04GWGenerating

Generated 2.4 GWhPumped 1.4 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.