Electricity Live

Great Britain’s electricity on Saturday 21 September 2019

On Saturday 21 September, demand averaged 27.5 GW. Renewables supplied 48%.

27.5GW AVERAGEWind11.01 GW39%Hydro0.39 GW1%Biomass1.28 GW4%Solar2.21 GW8%Gas4.99 GW17%Imports2.00 GW7%Nuclear6.71 GW23%27.5GW AVERAGE39%8%17%23%
Price
£24.56/MWh
Day average £24.56
Demand27.5GW
Generation 26.6Transfers 1.0
Fossil fuels17%
Renewables48%
Other35%
Carbon intensityLow
102g/kWh
0Day average 102300
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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 Saturday 21 September 2019, wind supplied 39% of Great Britain’s electricity and nuclear 23%. Demand peaked at 33.1 GW at 11:30. Carbon intensity averaged 102 g/kWh and the price £24.56/MWh. Wind generation peaked at 12.6 GW at 13:10. Solar generation peaked at 7.8 GW at 12:30. Carbon intensity was lowest at 12:30 (72 g/kWh) and highest at 19:00 (139 g/kWh). The wholesale price ranged from £3.86/MWh at 00:30 to £49.33/MWh at 19:30. Wind made 41% of the electricity generated in Great Britain, compared with 22% across 2019.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 2.217.7%Wind 11.0138.5%Gas 4.9917.4%Hydro 0.391.3%Biomass 1.284.5%Nuclear 6.7123.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.5avgGeneration 26.6avgTransfers 1.0avg
The day in figurespeaks, averages, totals
Peak demand33.1GW · 11:30
Low 20.3 · 04:15Avg 27.50–40 GW
Made in Great Britain97%of demand
Generation 26.6Transfers 1.0 GW
Net imports25GWh
In
44 Out
19
Zero-carbon share76%of generation
Nuclear 25%Hydro 1%Wind 41%Solar 8%

Transfers · Sat 21 Sept

Interconnectors and storage

On Saturday 21 September 2019, Great Britain imported 44 GWh and exported 19 GWh through its interconnectors. The most came from France (13 GWh), and the most exports went to France (13 GWh).

All interconnectors

Sat 21 Sept
Imported
44GWh
Exported
19GWh
Net in
25GWh
Average net flow
1.03GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.52GWImporting

In 12.7 GWhOut 0.2 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.04GWImporting

In 13.4 GWhOut 12.5 GWh

Ireland

Moyle · East–West · Greenlink

Average0.39GWImporting

In 10.1 GWhOut 0.8 GWh

Netherlands

BritNed

Average0.08GWImporting

In 7.6 GWhOut 5.6 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.07GWPumping

Generated 4.2 GWhPumped 5.9 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.