Electricity Live

Great Britain’s electricity on Wednesday 23 April 2025

On Wednesday 23 April, demand averaged 29.6 GW. Renewables supplied 21%.

29.6GW AVERAGEWind4.28 GW14%Hydro0.21 GW1%Biomass2.18 GW7%Solar2.25 GW7%Gas14.10 GW45%Imports5.25 GW17%Nuclear3.35 GW11%29.6GW AVERAGE14%7%45%17%11%
Price
£82.55/MWh
Day average £82.55
Demand29.6GW
Generation 26.4Transfers 3.3
Fossil fuels45%
Renewables21%
Other34%
Carbon intensityHigh
198g/kWh
0Day average 198300
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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 23 April 2025, gas supplied 45% of Great Britain’s electricity and wind 14%. Demand peaked at 35.7 GW at 12:30. Carbon intensity averaged 198 g/kWh and the price £82.55/MWh. Wind generation peaked at 8.5 GW at 00:10. Solar generation peaked at 7.5 GW at 12:30. Carbon intensity was lowest at 00:00 (145 g/kWh) and highest at 19:30 (247 g/kWh). The wholesale price ranged from £68.10/MWh at 01:00 to £119.03/MWh at 19:30. Gas made 53% of the electricity generated in Great Britain, compared with 32% across 2025.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 2.257.1%Wind 4.2813.5%Gas 14.1044.6%Hydro 0.210.7%Biomass 2.186.9%Nuclear 3.3510.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.6avgGeneration 26.4avgTransfers 3.3avg
The day in figurespeaks, averages, totals
Peak demand35.7GW · 12:30
Low 21.5 · 04:00Avg 29.60–40 GW
Made in Great Britain89%of demand
Generation 26.4Transfers 3.3 GW
Net imports79GWh
In
125 Out
46
Zero-carbon share38%of generation
Nuclear 13%Hydro 1%Wind 16%Solar 9%

Transfers · Wed 23 Apr

Interconnectors and storage

On Wednesday 23 April 2025, Great Britain imported 125 GWh and exported 46 GWh through its interconnectors. The most came from France (72 GWh), and the most exports went to Ireland (18 GWh).

All interconnectors

Wed 23 Apr
Imported
125GWh
Exported
46GWh
Net in
79GWh
Average net flow
3.30GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.18GWExporting

In 5.6 GWhOut 10.0 GWh

Denmark

Viking Link

Average0.04GWImporting

In 9.7 GWhOut 8.7 GWh

France

IFA · IFA2 · ElecLink

Average2.98GWImporting

In 71.5 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.75GWExporting

In 0.0 GWhOut 17.9 GWh

Netherlands

BritNed

Average0.09GWExporting

In 7.0 GWhOut 9.2 GWh

Norway

North Sea Link

Average1.30GWImporting

In 31.2 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.04GWPumping

Generated 1.1 GWhPumped 1.9 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.