Electricity Live

Great Britain’s electricity on Saturday 20 March 2021

On Saturday 20 March, demand averaged 30.9 GW. Renewables supplied 21%.

30.9GW AVERAGEWind5.37 GW17%Hydro0.46 GW1%Biomass1.97 GW6%Solar0.83 GW3%Gas14.24 GW45%Imports3.89 GW12%Nuclear4.98 GW16%30.9GW AVERAGE17%45%12%16%
Price
£51.99/MWh
Day average £51.99
Demand30.9GW
Generation 27.9Transfers 3.0
Fossil fuels45%
Renewables21%
Other34%
Carbon intensityModerate
206g/kWh
0Day average 206300
Save as image
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 20 March 2021, gas supplied 45% of Great Britain’s electricity and wind 17%. Demand peaked at 38.0 GW at 18:45. Carbon intensity averaged 206 g/kWh and the price £51.99/MWh. Wind generation peaked at 9.1 GW at 16:30. Solar generation peaked at 3.0 GW at 11:00. Carbon intensity was lowest at 23:00 (159 g/kWh) and highest at 03:30 (238 g/kWh). The wholesale price ranged from £33.84/MWh at 02:30 to £84.97/MWh at 07:30. Gas made 51% 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 0.832.6%Wind 5.3716.9%Gas 14.2444.9%Hydro 0.461.4%Biomass 1.976.2%Nuclear 4.9815.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 30.9avgGeneration 27.9avgTransfers 3.0avg
The day in figurespeaks, averages, totals
Peak demand38.0GW · 18:45
Low 23.8 · 04:45Avg 30.90–40 GW
Made in Great Britain90%of demand
Generation 27.9Transfers 3.0 GW
Net imports74GWh
In
90 Out
16
Zero-carbon share42%of generation
Nuclear 18%Hydro 2%Wind 19%Solar 3%

Transfers · Sat 20 Mar

Interconnectors and storage

On Saturday 20 March 2021, Great Britain imported 90 GWh and exported 16 GWh through its interconnectors. The most came from France (68 GWh), and the most exports went to Ireland (16 GWh).

All interconnectors

Sat 20 Mar
Imported
90GWh
Exported
16GWh
Net in
74GWh
Average net flow
3.08GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.94GWImporting

In 22.5 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.82GWImporting

In 67.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.68GWExporting

In 0.0 GWhOut 16.3 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

Average0.05GWPumping

Generated 3.0 GWhPumped 4.3 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.