Electricity Live

Great Britain’s electricity on Saturday 29 May 2021

On Saturday 29 May, demand averaged 26.8 GW. Renewables supplied 15%.

26.8GW AVERAGEWind1.31 GW5%Hydro0.25 GW1%Biomass2.08 GW7%Solar2.69 GW10%Gas12.59 GW45%Imports3.58 GW13%Nuclear5.43 GW19%26.8GW AVERAGE7%10%45%13%19%
Price
£64.84/MWh
Day average £64.84
Demand26.8GW
Generation 24.4Transfers 2.5
Fossil fuels45%
Renewables15%
Other40%
Carbon intensityModerate
193g/kWh
0Day average 193300
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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 29 May 2021, gas supplied 45% of Great Britain’s electricity and nuclear 19%. Demand peaked at 32.1 GW at 12:00. Carbon intensity averaged 193 g/kWh and the price £64.84/MWh. Wind generation peaked at 1.9 GW at 18:55. Solar generation peaked at 8.0 GW at 12:30. Carbon intensity was lowest at 14:00 (150 g/kWh) and highest at 21:30 (227 g/kWh). The wholesale price ranged from £60.72/MWh at 00:30 to £83.37/MWh at 23:30. 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 2.699.6%Wind 1.314.7%Gas 12.5945.1%Hydro 0.250.9%Biomass 2.087.5%Nuclear 5.4319.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 26.8avgGeneration 24.4avgTransfers 2.5avg
The day in figurespeaks, averages, totals
Peak demand32.1GW · 12:00
Low 20.3 · 04:40Avg 26.80–40 GW
Made in Great Britain91%of demand
Generation 24.4Transfers 2.5 GW
Net imports62GWh
In
83 Out
21
Zero-carbon share40%of generation
Nuclear 22%Hydro 1%Wind 5%Solar 11%

Transfers · Sat 29 May

Interconnectors and storage

On Saturday 29 May 2021, Great Britain imported 83 GWh and exported 21 GWh through its interconnectors. The most came from France (59 GWh), and the most exports went to Ireland (21 GWh).

All interconnectors

Sat 29 May
Imported
83GWh
Exported
21GWh
Net in
62GWh
Average net flow
2.58GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.97GWImporting

In 23.2 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.47GWImporting

In 59.3 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.86GWExporting

In 0.0 GWhOut 20.6 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.1 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.10GWPumping

Generated 3.4 GWhPumped 5.7 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.