Electricity Live

Great Britain’s electricity on Monday 13 September 2021

On Monday 13 September, demand averaged 29.7 GW. Renewables supplied 16%.

29.7GW AVERAGEWind3.58 GW12%Hydro0.15 GW0%Biomass1.07 GW4%Solar1.16 GW4%Gas14.89 GW49%Coal0.81 GW3%Imports3.56 GW12%Nuclear4.86 GW16%29.7GW AVERAGE12%49%12%16%
Price
£137.97/MWh
Day average £137.97
Demand29.7GW
Generation 26.5Transfers 3.1
Fossil fuels49%
Renewables16%
Other32%
Carbon intensityHigh
241g/kWh
0Day average 241300
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 Monday 13 September 2021, gas supplied 49% of Great Britain’s electricity and nuclear 16%. Demand peaked at 36.3 GW at 12:35. Carbon intensity averaged 241 g/kWh and the price £137.97/MWh. Wind generation peaked at 4.5 GW at 14:45. Solar generation peaked at 4.5 GW at 12:30. Carbon intensity was lowest at 02:30 (216 g/kWh) and highest at 07:30 (267 g/kWh). The wholesale price ranged from £90.31/MWh at 00:00 to £220.68/MWh at 17:30. Gas made 56% 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 1.163.9%Wind 3.5811.9%Gas 14.8949.5%Hydro 0.150.5%Biomass 1.073.6%Nuclear 4.8616.2%Coal 0.812.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.7avgGeneration 26.5avgTransfers 3.1avg
The day in figurespeaks, averages, totals
Peak demand36.3GW · 12:35
Low 19.9 · 04:00Avg 29.70–40 GW
Made in Great Britain89%of demand
Generation 26.5Transfers 3.1 GW
Net imports79GWh
In
81 Out
2
Zero-carbon share37%of generation
Nuclear 18%Hydro 1%Wind 13%Solar 4%

Transfers · Mon 13 Sept

Interconnectors and storage

On Monday 13 September 2021, Great Britain imported 81 GWh and exported 2 GWh through its interconnectors. The most came from France (44 GWh), and the most exports went to Ireland (2 GWh).

All interconnectors

Mon 13 Sept
Imported
81GWh
Exported
2GWh
Net in
79GWh
Average net flow
3.29GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.80GWImporting

In 19.3 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.83GWImporting

In 43.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.07GWExporting

In 0.2 GWhOut 2.0 GWh

Netherlands

BritNed

Average0.73GWImporting

In 17.6 GWhOut 0.1 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.16GWPumping

Generated 4.3 GWhPumped 8.1 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.