Electricity Live

Great Britain’s electricity on Saturday 21 December 2024

On Saturday 21 December, demand averaged 32.5 GW. Renewables supplied 63%.

32.5GW AVERAGEWind20.44 GW60%Hydro0.74 GW2%Biomass0.86 GW3%Solar0.24 GW1%Gas4.05 GW12%Imports3.08 GW9%Nuclear4.84 GW14%32.5GW AVERAGE60%12%9%14%
Price
£11.53/MWh
Day average £11.53
Demand32.5GW
Generation 31.2Transfers 1.4
Fossil fuels12%
Renewables63%
Other26%
Carbon intensityLow
59g/kWh
0Day average 59300
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 21 December 2024, wind supplied 60% of Great Britain’s electricity and nuclear 14%. Demand peaked at 39.7 GW at 17:20. Carbon intensity averaged 59 g/kWh and the price £11.53/MWh. Wind generation peaked at 22.3 GW at 18:00. Solar generation peaked at 1.7 GW at 12:00. Carbon intensity was lowest at 13:30 (50 g/kWh) and highest at 01:30 (69 g/kWh). The wholesale price ranged from −£6.83/MWh at 23:30 to £29.10/MWh at 16:30. The price was below zero for 0.5 hours. Wind made 66% of the electricity generated in Great Britain, compared with 35% across 2024.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.240.7%Wind 20.4459.7%Gas 4.0511.8%Hydro 0.742.2%Biomass 0.862.5%Nuclear 4.8414.1%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 32.5avgGeneration 31.2avgTransfers 1.4avg
The day in figurespeaks, averages, totals
Peak demand39.7GW · 17:20
Low 24.6 · 04:25Avg 32.50–40 GW
Made in Great Britain96%of demand
Generation 31.2Transfers 1.4 GW
Net imports40GWh
In
71 Out
31
Zero-carbon share84%of generation
Nuclear 16%Hydro 2%Wind 66%Solar 1%

Transfers · Sat 21 Dec

Interconnectors and storage

On Saturday 21 December 2024, Great Britain imported 71 GWh and exported 31 GWh through its interconnectors. The most came from Norway (25 GWh), and the most exports went to France (24 GWh).

All interconnectors

Sat 21 Dec
Imported
71GWh
Exported
31GWh
Net in
40GWh
Average net flow
1.66GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.12GWImporting

In 8.4 GWhOut 5.4 GWh

Denmark

Viking Link

Average0.86GWImporting

In 20.7 GWhOut 0.2 GWh

France

IFA · IFA2 · ElecLink

Average0.48GWExporting

In 12.4 GWhOut 23.9 GWh

Ireland

Moyle · East–West · Greenlink

Average0.12GWImporting

In 4.3 GWhOut 1.5 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average1.05GWImporting

In 25.2 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.29GWPumping

Generated 3.0 GWhPumped 9.9 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.