Electricity Live

Great Britain’s electricity on Wednesday 1 September 2021

On Wednesday 1 September, demand averaged 29.5 GW. Renewables supplied 19%.

29.5GW AVERAGEWind4.81 GW16%Hydro0.16 GW1%Biomass1.35 GW4%Solar0.96 GW3%Gas13.29 GW44%Coal0.35 GW1%Imports4.65 GW15%Nuclear4.88 GW16%29.5GW AVERAGE16%44%15%16%
Price
£136.80/MWh
Day average £136.80
Demand29.5GW
Generation 25.8Transfers 3.7
Fossil fuels44%
Renewables19%
Other36%
Carbon intensityModerate
205g/kWh
0Day average 205300
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 1 September 2021, gas supplied 44% of Great Britain’s electricity and nuclear 16%. Demand peaked at 34.9 GW at 12:40. Carbon intensity averaged 205 g/kWh and the price £136.80/MWh. Wind generation peaked at 6.0 GW at 00:00. Solar generation peaked at 3.0 GW at 12:00. Carbon intensity was lowest at 00:30 (158 g/kWh) and highest at 20:30 (235 g/kWh). The wholesale price ranged from £87.45/MWh at 06:30 to £220.06/MWh at 18:00. Gas made 52% of the electricity generated in Great Britain, compared with 42% across 2021.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.963.2%Wind 4.8115.8%Gas 13.2943.6%Hydro 0.160.5%Biomass 1.354.4%Nuclear 4.8816.0%Coal 0.351.2%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.5avgGeneration 25.8avgTransfers 3.7avg
The day in figurespeaks, averages, totals
Peak demand34.9GW · 12:40
Low 20.8 · 02:50Avg 29.50–40 GW
Made in Great Britain87%of demand
Generation 25.8Transfers 3.7 GW
Net imports95GWh
In
107 Out
11
Zero-carbon share42%of generation
Nuclear 19%Hydro 1%Wind 19%Solar 4%

Transfers · Wed 1 Sept

Interconnectors and storage

On Wednesday 1 September 2021, Great Britain imported 107 GWh and exported 11 GWh through its interconnectors. The most came from France (68 GWh), and the most exports went to Ireland (11 GWh).

All interconnectors

Wed 1 Sept
Imported
107GWh
Exported
11GWh
Net in
95GWh
Average net flow
3.98GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.83GWImporting

In 19.8 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.83GWImporting

In 67.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.44GWExporting

In 0.2 GWhOut 10.8 GWh

Netherlands

BritNed

Average0.76GWImporting

In 18.4 GWhOut 0.2 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.2 GWhOut 0.1 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.26GWPumping

Generated 5.0 GWhPumped 11.3 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.