Electricity Live

Great Britain’s electricity on Tuesday 23 March 2021

On Tuesday 23 March, demand averaged 33.8 GW. Renewables supplied 35%.

33.8GW AVERAGEWind10.27 GW30%Hydro0.37 GW1%Biomass3.01 GW9%Solar1.34 GW4%Gas10.88 GW32%Coal0.15 GW0%Imports2.87 GW8%Nuclear5.07 GW15%33.8GW AVERAGE30%9%32%8%15%
Price
£51.92/MWh
Day average £51.92
Demand33.8GW
Generation 31.1Transfers 2.7
Fossil fuels32%
Renewables35%
Other32%
Carbon intensityModerate
164g/kWh
0Day average 164300
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 Tuesday 23 March 2021, gas supplied 32% of Great Britain’s electricity and wind 30%. Demand peaked at 41.1 GW at 19:00. Carbon intensity averaged 164 g/kWh and the price £51.92/MWh. Wind generation peaked at 15.0 GW at 15:05. Solar generation peaked at 4.9 GW at 13:00. Carbon intensity was lowest at 23:30 (109 g/kWh) and highest at 06:00 (215 g/kWh). The wholesale price ranged from £24.32/MWh at 23:30 to £69.42/MWh at 18:30. Gas made 35% 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 1.343.9%Wind 10.2730.2%Gas 10.8832.0%Hydro 0.371.1%Biomass 3.018.9%Nuclear 5.0714.9%Coal 0.150.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 33.8avgGeneration 31.1avgTransfers 2.7avg
The day in figurespeaks, averages, totals
Peak demand41.1GW · 19:00
Low 24.9 · 03:55Avg 33.80–60 GW
Made in Great Britain92%of demand
Generation 31.1Transfers 2.7 GW
Net imports66GWh
In
67 Out
2
Zero-carbon share55%of generation
Nuclear 16%Hydro 1%Wind 33%Solar 4%

Transfers · Tue 23 Mar

Interconnectors and storage

On Tuesday 23 March 2021, Great Britain imported 67 GWh and exported 2 GWh through its interconnectors. The most came from France (36 GWh), and the most exports went to Ireland (2 GWh).

All interconnectors

Tue 23 Mar
Imported
67GWh
Exported
2GWh
Net in
66GWh
Average net flow
2.73GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.79GWImporting

In 19.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.50GWImporting

In 35.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.45GWImporting

In 12.4 GWhOut 1.7 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

Average0.04GWPumping

Generated 1.6 GWhPumped 2.5 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.