Electricity Live

Great Britain’s electricity on Thursday 30 September 2021

On Thursday 30 September, demand averaged 31.5 GW. Renewables supplied 46%.

31.5GW AVERAGEWind13.83 GW44%Hydro0.32 GW1%Biomass1.68 GW5%Solar0.50 GW2%Gas8.58 GW27%Imports1.95 GW6%Nuclear4.87 GW15%31.5GW AVERAGE44%27%15%
Price
£147.36/MWh
Day average £147.36
Demand31.5GW
Generation 29.8Transfers 1.7
Fossil fuels27%
Renewables46%
Other27%
Carbon intensityLow
116g/kWh
0Day average 116300
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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 Thursday 30 September 2021, wind supplied 44% of Great Britain’s electricity and gas 27%. Demand peaked at 37.9 GW at 17:20. Carbon intensity averaged 116 g/kWh and the price £147.36/MWh. Wind generation peaked at 16.8 GW at 10:40. Solar generation peaked at 2.0 GW at 11:00. Carbon intensity was lowest at 23:30 (72 g/kWh) and highest at 20:30 (150 g/kWh). The wholesale price ranged from £64.59/MWh at 05:30 to £219.83/MWh at 23:00. Wind made 46% 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 0.501.6%Wind 13.8343.6%Gas 8.5827.0%Hydro 0.321.0%Biomass 1.685.3%Nuclear 4.8715.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.5avgGeneration 29.8avgTransfers 1.7avg
The day in figurespeaks, averages, totals
Peak demand37.9GW · 17:20
Low 21.4 · 03:55Avg 31.50–40 GW
Made in Great Britain95%of demand
Generation 29.8Transfers 1.7 GW
Net imports41GWh
In
42 Out
2
Zero-carbon share66%of generation
Nuclear 16%Hydro 1%Wind 46%Solar 2%

Transfers · Thu 30 Sept

Interconnectors and storage

On Thursday 30 September 2021, Great Britain imported 42 GWh and exported 2 GWh through its interconnectors. The most came from Belgium (19 GWh), and the most exports went to France (2 GWh).

All interconnectors

Thu 30 Sept
Imported
42GWh
Exported
2GWh
Net in
41GWh
Average net flow
1.69GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.79GWImporting

In 19.1 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.56GWImporting

In 15.0 GWhOut 1.6 GWh

Ireland

Moyle · East–West · Greenlink

Average0.34GWImporting

In 8.3 GWhOut 0.1 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.00GWIdle

Generated 4.5 GWhPumped 4.4 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.