Electricity Live

Great Britain’s electricity on Tuesday 7 September 2021

On Tuesday 7 September, demand averaged 30.2 GW. Renewables supplied 16%.

30.2GW AVERAGEWind2.38 GW8%Hydro0.26 GW1%Biomass1.52 GW5%Solar2.49 GW8%Gas14.74 GW47%Coal0.56 GW2%Imports4.65 GW15%Nuclear4.96 GW16%30.2GW AVERAGE8%8%47%15%16%
Price
£215.15/MWh
Day average £215.15
Demand30.2GW
Generation 26.9Transfers 3.3
Fossil fuels47%
Renewables16%
Other35%
Carbon intensityHigh
229g/kWh
0Day average 229300
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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 Tuesday 7 September 2021, gas supplied 47% of Great Britain’s electricity and nuclear 16%. Demand peaked at 36.9 GW at 12:30. Carbon intensity averaged 229 g/kWh and the price £215.15/MWh. Wind generation peaked at 4.3 GW at 22:35. Solar generation peaked at 8.2 GW at 12:30. Carbon intensity was lowest at 23:30 (194 g/kWh) and highest at 07:00 (270 g/kWh). The wholesale price ranged from £87.67/MWh at 00:00 to £962.11/MWh at 18:30. Gas made 55% 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 2.497.9%Wind 2.387.5%Gas 14.7446.7%Hydro 0.260.8%Biomass 1.524.8%Nuclear 4.9615.7%Coal 0.561.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 30.2avgGeneration 26.9avgTransfers 3.3avg
The day in figurespeaks, averages, totals
Peak demand36.9GW · 12:30
Low 21.2 · 04:40Avg 30.20–40 GW
Made in Great Britain89%of demand
Generation 26.9Transfers 3.3 GW
Net imports80GWh
In
101 Out
22
Zero-carbon share38%of generation
Nuclear 18%Hydro 1%Wind 9%Solar 9%

Transfers · Tue 7 Sept

Interconnectors and storage

On Tuesday 7 September 2021, Great Britain imported 101 GWh and exported 22 GWh through its interconnectors. The most came from France (59 GWh), and the most exports went to Norway (12 GWh).

All interconnectors

Tue 7 Sept
Imported
101GWh
Exported
22GWh
Net in
80GWh
Average net flow
3.32GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.85GWImporting

In 20.5 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.47GWImporting

In 59.2 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.39GWExporting

In 0.1 GWhOut 9.5 GWh

Netherlands

BritNed

Average0.90GWImporting

In 21.7 GWhOut 0.1 GWh

Norway

North Sea Link

Average0.50GWExporting

In 0.0 GWhOut 12.1 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.02GWPumping

Generated 10.2 GWhPumped 10.8 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.