Electricity Live

Great Britain’s electricity on Tuesday 15 April 2025

On Tuesday 15 April, demand averaged 29.8 GW. Renewables supplied 19%.

29.8GW AVERAGEWind4.29 GW14%Hydro0.14 GW0%Biomass2.88 GW9%Solar1.36 GW4%Gas10.38 GW34%Imports6.94 GW23%Nuclear4.45 GW15%29.8GW AVERAGE14%9%34%23%15%
Price
£88.58/MWh
Day average £88.58
Demand29.8GW
Generation 23.5Transfers 6.3
Fossil fuels34%
Renewables19%
Other47%
Carbon intensityHigh
165g/kWh
0Day average 165300
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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 Tuesday 15 April 2025, gas supplied 34% of Great Britain’s electricity and nuclear 15%. Demand peaked at 35.0 GW at 12:00. Carbon intensity averaged 165 g/kWh and the price £88.58/MWh. Wind generation peaked at 9.2 GW at 23:55. Solar generation peaked at 4.9 GW at 13:00. Carbon intensity was lowest at 23:30 (74 g/kWh) and highest at 07:00 (211 g/kWh). The wholesale price ranged from £71.80/MWh at 07:00 to £101.29/MWh at 18:00. Gas made 44% 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 1.364.5%Wind 4.2914.1%Gas 10.3834.1%Hydro 0.140.5%Biomass 2.889.5%Nuclear 4.4514.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.8avgGeneration 23.5avgTransfers 6.3avg
The day in figurespeaks, averages, totals
Peak demand35.0GW · 12:00
Low 22.1 · 04:40Avg 29.80–40 GW
Made in Great Britain79%of demand
Generation 23.5Transfers 6.3 GW
Net imports147GWh
In
164 Out
16
Zero-carbon share44%of generation
Nuclear 19%Hydro 1%Wind 18%Solar 6%

Transfers · Tue 15 Apr

Interconnectors and storage

On Tuesday 15 April 2025, Great Britain imported 164 GWh and exported 16 GWh through its interconnectors. The most came from France (72 GWh), and the most exports went to Ireland (15 GWh).

All interconnectors

Tue 15 Apr
Imported
164GWh
Exported
16GWh
Net in
147GWh
Average net flow
6.14GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.66GWImporting

In 16.1 GWhOut 0.2 GWh

Denmark

Viking Link

Average1.19GWImporting

In 28.5 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.99GWImporting

In 71.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.63GWExporting

In 0.0 GWhOut 15.1 GWh

Netherlands

BritNed

Average0.53GWImporting

In 13.7 GWhOut 1.0 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.11GWGenerating

Generated 2.9 GWhPumped 0.3 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.