Electricity Live

Great Britain’s electricity on Wednesday 30 April 2025

On Wednesday 30 April, demand averaged 28.3 GW. Renewables supplied 24%.

28.3GW AVERAGEWind2.53 GW8%Hydro0.16 GW1%Biomass2.95 GW10%Solar4.52 GW15%Gas11.27 GW38%Imports5.27 GW18%Nuclear3.18 GW11%28.3GW AVERAGE8%10%15%38%18%11%
Price
£83.28/MWh
Day average £83.28
Demand28.3GW
Generation 24.6Transfers 3.7
Fossil fuels38%
Renewables24%
Other38%
Carbon intensityHigh
182g/kWh
0Day average 182300
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

Records set on this day

All records

Key moments

On Wednesday 30 April 2025, gas supplied 38% of Great Britain’s electricity and solar 15%. Demand peaked at 34.2 GW at 12:40. Carbon intensity averaged 182 g/kWh and the price £83.28/MWh. Wind generation peaked at 4.8 GW at 20:40. Solar generation peaked at 13.5 GW at 12:30. Carbon intensity was lowest at 13:00 (116 g/kWh) and highest at 20:30 (226 g/kWh). The wholesale price ranged from £67.52/MWh at 03:30 to £106.91/MWh at 19:30. Gas made 46% 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 4.5215.1%Wind 2.538.5%Gas 11.2737.7%Hydro 0.160.5%Biomass 2.959.9%Nuclear 3.1810.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.3avgGeneration 24.6avgTransfers 3.7avg
The day in figurespeaks, averages, totals
Peak demand34.2GW · 12:40
Low 20.3 · 04:05Avg 28.30–40 GW
Made in Great Britain87%of demand
Generation 24.6Transfers 3.7 GW
Net imports88GWh
In
125 Out
37
Zero-carbon share42%of generation
Nuclear 13%Hydro 1%Wind 10%Solar 18%

Transfers · Wed 30 Apr

Interconnectors and storage

On Wednesday 30 April 2025, Great Britain imported 125 GWh and exported 37 GWh through its interconnectors. The most came from France (60 GWh), and the most exports went to Ireland (22 GWh).

All interconnectors

Wed 30 Apr
Imported
125GWh
Exported
37GWh
Net in
88GWh
Average net flow
3.66GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.28GWImporting

In 9.8 GWhOut 3.1 GWh

Denmark

Viking Link

Average0.16GWImporting

In 10.5 GWhOut 6.6 GWh

France

IFA · IFA2 · ElecLink

Average2.51GWImporting

In 60.1 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.92GWExporting

In 0.0 GWhOut 22.1 GWh

Netherlands

BritNed

Average0.24GWImporting

In 10.7 GWhOut 5.0 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.06GWGenerating

Generated 1.7 GWhPumped 0.1 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.