Electricity Live

Great Britain’s electricity on Friday 24 September 2021

On Friday 24 September, demand averaged 29.7 GW. Renewables supplied 42%.

29.7GW AVERAGEWind10.99 GW36%Hydro0.15 GW0%Biomass2.13 GW7%Solar1.54 GW5%Gas8.40 GW28%Imports1.95 GW6%Nuclear5.00 GW17%29.7GW AVERAGE36%7%28%17%
Price
£149.46/MWh
Day average £149.46
Demand29.7GW
Generation 28.2Transfers 1.5
Fossil fuels28%
Renewables42%
Other30%
Carbon intensityLow
136g/kWh
0Day average 136300
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 Friday 24 September 2021, wind supplied 36% of Great Britain’s electricity and gas 28%. Demand peaked at 35.4 GW at 11:30. Carbon intensity averaged 136 g/kWh and the price £149.46/MWh. Wind generation peaked at 14.2 GW at 13:30. Solar generation peaked at 5.5 GW at 13:00. Carbon intensity was lowest at 13:00 (93 g/kWh) and highest at 22:00 (184 g/kWh). The wholesale price ranged from £105.26/MWh at 16:00 to £196.48/MWh at 07:30. Wind made 39% of the electricity generated in Great Britain, compared with 25% across 2021.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 1.545.1%Wind 10.9936.4%Gas 8.4027.8%Hydro 0.150.5%Biomass 2.137.1%Nuclear 5.0016.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.7avgGeneration 28.2avgTransfers 1.5avg
The day in figurespeaks, averages, totals
Peak demand35.4GW · 11:30
Low 20.8 · 03:55Avg 29.70–40 GW
Made in Great Britain95%of demand
Generation 28.2Transfers 1.5 GW
Net imports40GWh
In
46 Out
6
Zero-carbon share63%of generation
Nuclear 18%Hydro 1%Wind 39%Solar 5%

Transfers · Fri 24 Sept

Interconnectors and storage

On Friday 24 September 2021, Great Britain imported 46 GWh and exported 6 GWh through its interconnectors. The most came from Netherlands (19 GWh), and the most exports went to Ireland (5 GWh).

All interconnectors

Fri 24 Sept
Imported
46GWh
Exported
6GWh
Net in
40GWh
Average net flow
1.67GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.46GWImporting

In 11.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.62GWImporting

In 15.0 GWhOut 0.2 GWh

Ireland

Moyle · East–West · Greenlink

Average0.22GWExporting

In 0.2 GWhOut 5.4 GWh

Netherlands

BritNed

Average0.81GWImporting

In 19.3 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.2 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.17GWPumping

Generated 1.0 GWhPumped 5.1 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.