Electricity Live

Great Britain’s electricity on Saturday 28 August 2021

On Saturday 28 August, demand averaged 26.4 GW. Renewables supplied 24%.

26.4GW AVERAGEWind4.25 GW16%Hydro0.16 GW1%Biomass1.90 GW7%Solar2.13 GW8%Gas8.66 GW32%Coal0.12 GW0%Imports4.37 GW16%Nuclear5.28 GW20%26.4GW AVERAGE16%7%8%32%16%20%
Price
£92.66/MWh
Day average £92.66
Demand26.4GW
Generation 22.5Transfers 3.9
Fossil fuels32%
Renewables24%
Other43%
Carbon intensityModerate
158g/kWh
0Day average 158300
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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 28 August 2021, gas supplied 32% of Great Britain’s electricity and nuclear 20%. Demand peaked at 31.3 GW at 11:35. Carbon intensity averaged 158 g/kWh and the price £92.66/MWh. Wind generation peaked at 5.5 GW at 08:30. Solar generation peaked at 6.7 GW at 13:00. Carbon intensity was lowest at 05:00 (130 g/kWh) and highest at 22:00 (215 g/kWh). The wholesale price ranged from £66.61/MWh at 05:30 to £129.76/MWh at 20:00. Gas made 38% 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 2.137.9%Wind 4.2515.8%Gas 8.6632.2%Hydro 0.160.6%Biomass 1.907.1%Nuclear 5.2819.7%Coal 0.120.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 26.4avgGeneration 22.5avgTransfers 3.9avg
The day in figurespeaks, averages, totals
Peak demand31.3GW · 11:35
Low 19.8 · 04:20Avg 26.40–40 GW
Made in Great Britain85%of demand
Generation 22.5Transfers 3.9 GW
Net imports96GWh
In
102 Out
6
Zero-carbon share53%of generation
Nuclear 23%Hydro 1%Wind 19%Solar 9%

Transfers · Sat 28 Aug

Interconnectors and storage

On Saturday 28 August 2021, Great Britain imported 102 GWh and exported 6 GWh through its interconnectors. The most came from France (61 GWh), and the most exports went to Ireland (6 GWh).

All interconnectors

Sat 28 Aug
Imported
102GWh
Exported
6GWh
Net in
96GWh
Average net flow
4.00GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.85GWImporting

In 20.4 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.54GWImporting

In 61.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.24GWExporting

In 0.5 GWhOut 6.2 GWh

Netherlands

BritNed

Average0.85GWImporting

In 20.5 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.10GWPumping

Generated 2.5 GWhPumped 4.9 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.