Electricity Live

Great Britain’s electricity on Monday 30 June 2025

On Monday 30 June, demand averaged 29.7 GW. Renewables supplied 39%.

29.7GW AVERAGEWind7.65 GW24%Hydro0.22 GW1%Biomass2.86 GW9%Solar4.43 GW14%Gas8.62 GW27%Imports3.52 GW11%Nuclear4.38 GW14%29.7GW AVERAGE24%9%14%27%11%14%
Price
£97.58/MWh
Day average £97.58
Demand29.7GW
Generation 28.2Transfers 1.5
Fossil fuels27%
Renewables39%
Other34%
Carbon intensityModerate
134g/kWh
0Day average 134300
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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 30 June 2025, gas supplied 27% of Great Britain’s electricity and wind 24%. Demand peaked at 37.5 GW at 13:50. Carbon intensity averaged 134 g/kWh and the price £97.58/MWh. Wind generation peaked at 9.2 GW at 21:55. Solar generation peaked at 12.8 GW at 13:00. Carbon intensity was lowest at 12:00 (71 g/kWh) and highest at 20:00 (186 g/kWh). The wholesale price ranged from £61.00/MWh at 04:00 to £208.36/MWh at 19:00. Gas made 31% 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 4.4314.0%Wind 7.6524.2%Gas 8.6227.2%Hydro 0.220.7%Biomass 2.869.0%Nuclear 4.3813.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.7avgGeneration 28.2avgTransfers 1.5avg
The day in figurespeaks, averages, totals
Peak demand37.5GW · 13:50
Low 20.8 · 05:20Avg 29.70–40 GW
Made in Great Britain95%of demand
Generation 28.2Transfers 1.5 GW
Net imports38GWh
In
84 Out
46
Zero-carbon share59%of generation
Nuclear 16%Hydro 1%Wind 27%Solar 16%

Transfers · Mon 30 Jun

Interconnectors and storage

On Monday 30 June 2025, Great Britain imported 84 GWh and exported 46 GWh through its interconnectors. The most came from Norway (31 GWh), and the most exports went to Ireland (19 GWh).

All interconnectors

Mon 30 Jun
Imported
84GWh
Exported
46GWh
Net in
38GWh
Average net flow
1.57GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.05GWExporting

In 8.4 GWhOut 9.7 GWh

Denmark

Viking Link

Average0.20GWImporting

In 10.5 GWhOut 5.8 GWh

France

IFA · IFA2 · ElecLink

Average1.04GWImporting

In 25.5 GWhOut 0.5 GWh

Ireland

Moyle · East–West · Greenlink

Average0.81GWExporting

In 0.0 GWhOut 19.4 GWh

Netherlands

BritNed

Average0.09GWExporting

In 8.6 GWhOut 10.7 GWh

Norway

North Sea Link

Average1.28GWImporting

In 30.7 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.04GWPumping

Generated 0.8 GWhPumped 1.7 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.