Electricity Live

Great Britain’s electricity on Saturday 28 June 2025

On Saturday 28 June, demand averaged 27.2 GW. Renewables supplied 62%.

27.2GW AVERAGEWind14.99 GW49%Hydro0.15 GW1%Biomass1.19 GW4%Solar3.72 GW12%Gas4.00 GW13%Imports1.42 GW5%Nuclear4.80 GW16%27.2GW AVERAGE49%12%13%16%
Price
£7.19/MWh
Day average £7.19
Demand27.2GW
Generation 28.9Transfers −1.7
Fossil fuels13%
Renewables62%
Other24%
Carbon intensityLow
66g/kWh
0Day average 66300
Save as image
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 Saturday 28 June 2025, wind supplied 49% of Great Britain’s electricity and nuclear 16%. Demand peaked at 32.9 GW at 13:05. Carbon intensity averaged 66 g/kWh and the price £7.19/MWh. Wind generation peaked at 17.1 GW at 10:50. Solar generation peaked at 11.8 GW at 13:30. Carbon intensity was lowest at 13:30 (34 g/kWh) and highest at 21:30 (112 g/kWh). The wholesale price ranged from −£50.65/MWh at 16:00 to £88.33/MWh at 21:30. The price was below zero for 11.5 hours. Wind made 52% of the electricity generated in Great Britain, compared with 35% across 2025.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 3.7212.3%Wind 14.9949.5%Gas 4.0013.2%Hydro 0.150.5%Biomass 1.193.9%Nuclear 4.8015.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.2avgGeneration 28.9avgTransfers −1.7avg
The day in figurespeaks, averages, totals
Peak demand32.9GW · 13:05
Low 21.1 · 04:25Avg 27.20–40 GW
Made in Great Britain106%of demand
Generation 28.9Transfers −1.7 GW
Net exports39GWh
In
33 Out
72
Zero-carbon share82%of generation
Nuclear 17%Hydro 1%Wind 52%Solar 13%

Transfers · Sat 28 Jun

Interconnectors and storage

On Saturday 28 June 2025, Great Britain imported 33 GWh and exported 72 GWh through its interconnectors. The most came from Norway (15 GWh), and the most exports went to Ireland (29 GWh).

All interconnectors

Sat 28 Jun
Imported
33GWh
Exported
72GWh
Net out
39GWh
Average net flow
1.64GW out

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.11GWExporting

In 2.0 GWhOut 4.8 GWh

Denmark

Viking Link

Average0.17GWImporting

In 9.9 GWhOut 5.9 GWh

France

IFA · IFA2 · ElecLink

Average0.76GWExporting

In 6.1 GWhOut 24.4 GWh

Ireland

Moyle · East–West · Greenlink

Average1.20GWExporting

In 0.0 GWhOut 28.8 GWh

Netherlands

BritNed

Average0.23GWExporting

In 0.5 GWhOut 6.0 GWh

Norway

North Sea Link

Average0.50GWImporting

In 14.6 GWhOut 2.6 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.06GWPumping

Generated 1.0 GWhPumped 2.5 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.