Electricity Live

Great Britain’s electricity on Wednesday 19 March 2025

On Wednesday 19 March, demand averaged 33.0 GW. Renewables supplied 16%.

33.0GW AVERAGEWind2.07 GW6%Hydro0.31 GW1%Biomass2.24 GW6%Solar2.99 GW9%Gas16.17 GW47%Imports7.14 GW21%Nuclear3.63 GW10%33.0GW AVERAGE9%47%21%10%
Price
£115.75/MWh
Day average £115.75
Demand33.0GW
Generation 27.4Transfers 5.6
Fossil fuels47%
Renewables16%
Other38%
Carbon intensityHigh
216g/kWh
0Day average 216300
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 Wednesday 19 March 2025, gas supplied 47% of Great Britain’s electricity and nuclear 10%. Demand peaked at 39.3 GW at 10:05. Carbon intensity averaged 216 g/kWh and the price £115.75/MWh. Wind generation peaked at 6.9 GW at 00:00. Solar generation peaked at 11.0 GW at 11:00. Carbon intensity was lowest at 11:00 (170 g/kWh) and highest at 19:30 (269 g/kWh). The wholesale price ranged from £78.44/MWh at 00:00 to £181.68/MWh at 19:00. Gas made 59% 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 2.998.7%Wind 2.076.0%Gas 16.1746.8%Hydro 0.310.9%Biomass 2.246.5%Nuclear 3.6310.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 33.0avgGeneration 27.4avgTransfers 5.6avg
The day in figurespeaks, averages, totals
Peak demand39.3GW · 10:05
Low 25.2 · 04:20Avg 33.00–40 GW
Made in Great Britain83%of demand
Generation 27.4Transfers 5.6 GW
Net imports126GWh
In
162 Out
35
Zero-carbon share33%of generation
Nuclear 13%Hydro 1%Wind 8%Solar 11%

Transfers · Wed 19 Mar

Interconnectors and storage

On Wednesday 19 March 2025, Great Britain imported 162 GWh and exported 35 GWh through its interconnectors. The most came from France (96 GWh), and the most exports went to Ireland (29 GWh).

All interconnectors

Wed 19 Mar
Imported
162GWh
Exported
35GWh
Net in
126GWh
Average net flow
5.27GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.67GWImporting

In 17.3 GWhOut 1.2 GWh

Denmark

Viking Link

Average0.28GWImporting

In 10.5 GWhOut 3.9 GWh

France

IFA · IFA2 · ElecLink

Average3.99GWImporting

In 95.7 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.20GWExporting

In 0.0 GWhOut 28.7 GWh

Netherlands

BritNed

Average0.53GWImporting

In 14.1 GWhOut 1.4 GWh

Norway

North Sea Link

Average1.00GWImporting

In 23.9 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.30GWGenerating

Generated 9.9 GWhPumped 2.7 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.