Electricity Live

Great Britain’s electricity on Friday 21 December 2018

On Friday 21 December, demand averaged 35.9 GW. Renewables supplied 19%.

35.9GW AVERAGEWind5.97 GW16%Hydro0.66 GW2%Biomass2.52 GW7%Solar0.21 GW1%Gas15.35 GW42%Coal2.02 GW6%Imports3.28 GW9%Nuclear6.56 GW18%35.9GW AVERAGE16%42%9%18%
Price
£67.43/MWh
Day average £67.43
Demand35.9GW
Generation 33.3Transfers 2.6
Fossil fuels42%
Renewables19%
Other34%
Carbon intensityHigh
266g/kWh
0Day average 266300
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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 Friday 21 December 2018, gas supplied 42% of Great Britain’s electricity and nuclear 18%. Demand peaked at 43.1 GW at 17:15. Carbon intensity averaged 266 g/kWh and the price £67.43/MWh. Wind generation peaked at 8.5 GW at 23:15. Solar generation peaked at 1.3 GW at 12:30. Carbon intensity was lowest at 23:00 (188 g/kWh) and highest at 18:00 (313 g/kWh). The wholesale price ranged from £54.84/MWh at 01:00 to £85.54/MWh at 10:30. Gas made 46% of the electricity generated in Great Britain, compared with 42% across 2018.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.210.6%Wind 5.9716.3%Gas 15.3542.0%Hydro 0.661.8%Biomass 2.526.9%Nuclear 6.5617.9%Coal 2.025.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 35.9avgGeneration 33.3avgTransfers 2.6avg
The day in figurespeaks, averages, totals
Peak demand43.1GW · 17:15
Low 26.6 · 04:20Avg 35.90–60 GW
Made in Great Britain93%of demand
Generation 33.3Transfers 2.6 GW
Net imports66GWh
In
73 Out
7
Zero-carbon share40%of generation
Nuclear 20%Hydro 2%Wind 18%Solar 1%

Transfers · Fri 21 Dec

Interconnectors and storage

On Friday 21 December 2018, Great Britain imported 73 GWh and exported 7 GWh through its interconnectors. The most came from France (47 GWh), and the most exports went to Ireland (7 GWh).

All interconnectors

Fri 21 Dec
Imported
73GWh
Exported
7GWh
Net in
66GWh
Average net flow
2.73GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.96GWImporting

In 47.1 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.23GWExporting

In 1.6 GWhOut 7.1 GWh

Netherlands

BritNed

Average1.00GWImporting

In 24.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.12GWPumping

Generated 6.0 GWhPumped 8.8 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.