Electricity Live

Great Britain’s electricity on Monday 19 May 2025

On Monday 19 May, demand averaged 27.8 GW. Renewables supplied 28%.

27.8GW AVERAGEWind4.47 GW15%Hydro0.17 GW1%Biomass2.48 GW8%Solar3.52 GW12%Gas8.66 GW29%Imports4.92 GW17%Nuclear5.28 GW18%27.8GW AVERAGE15%8%12%29%17%18%
Price
£82.16/MWh
Day average £82.16
Demand27.8GW
Generation 24.6Transfers 3.2
Fossil fuels29%
Renewables28%
Other43%
Carbon intensityModerate
144g/kWh
0Day average 144300
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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 Monday 19 May 2025, gas supplied 29% of Great Britain’s electricity and nuclear 18%. Demand peaked at 34.1 GW at 11:35. Carbon intensity averaged 144 g/kWh and the price £82.16/MWh. Wind generation peaked at 6.1 GW at 14:05. Solar generation peaked at 9.9 GW at 14:00. Carbon intensity was lowest at 13:00 (85 g/kWh) and highest at 20:00 (199 g/kWh). The wholesale price ranged from £48.23/MWh at 15:30 to £103.64/MWh at 20:00. Gas made 35% 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 3.5211.9%Wind 4.4715.2%Gas 8.6629.4%Hydro 0.170.6%Biomass 2.488.4%Nuclear 5.2817.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.8avgGeneration 24.6avgTransfers 3.2avg
The day in figurespeaks, averages, totals
Peak demand34.1GW · 11:35
Low 20.1 · 04:30Avg 27.80–40 GW
Made in Great Britain89%of demand
Generation 24.6Transfers 3.2 GW
Net imports75GWh
In
116 Out
41
Zero-carbon share55%of generation
Nuclear 21%Hydro 1%Wind 18%Solar 14%

Transfers · Mon 19 May

Interconnectors and storage

On Monday 19 May 2025, Great Britain imported 116 GWh and exported 41 GWh through its interconnectors. The most came from France (64 GWh), and the most exports went to Ireland (18 GWh).

All interconnectors

Mon 19 May
Imported
116GWh
Exported
41GWh
Net in
75GWh
Average net flow
3.14GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.06GWExporting

In 9.1 GWhOut 10.4 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.65GWImporting

In 63.6 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.74GWExporting

In 0.0 GWhOut 17.7 GWh

Netherlands

BritNed

Average0.11GWExporting

In 9.9 GWhOut 12.6 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWGenerating

Generated 2.2 GWhPumped 0.9 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.