Electricity Live

Great Britain’s electricity on Friday 21 September 2018

On Friday 21 September, demand averaged 31.2 GW. Renewables supplied 46%.

31.2GW AVERAGEWind12.42 GW39%Hydro0.55 GW2%Biomass1.53 GW5%Solar1.60 GW5%Gas5.47 GW17%Coal1.23 GW4%Imports2.27 GW7%Nuclear6.78 GW21%31.2GW AVERAGE39%17%7%21%
Price
£60.75/MWh
Day average £60.75
Demand31.2GW
Generation 29.6Transfers 1.6
Fossil fuels17%
Renewables46%
Other33%
Carbon intensityLow
147g/kWh
0Day average 147300
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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

Records set on this day

All records

Key moments

On Friday 21 September 2018, wind supplied 39% of Great Britain’s electricity and nuclear 21%. Demand peaked at 37.1 GW at 12:15. Carbon intensity averaged 147 g/kWh and the price £60.75/MWh. Wind generation peaked at 14.2 GW at 15:50. Solar generation peaked at 5.2 GW at 11:30. Carbon intensity was lowest at 00:30 (84 g/kWh) and highest at 19:00 (195 g/kWh). The wholesale price ranged from £37.08/MWh at 04:30 to £81.91/MWh at 20:00. Wind made 42% of the electricity generated in Great Britain, compared with 19% across 2018.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 1.605.0%Wind 12.4239.0%Gas 5.4717.2%Hydro 0.551.7%Biomass 1.534.8%Nuclear 6.7821.3%Coal 1.233.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.2avgGeneration 29.6avgTransfers 1.6avg
The day in figurespeaks, averages, totals
Peak demand37.1GW · 12:15
Low 21.7 · 04:30Avg 31.20–40 GW
Made in Great Britain95%of demand
Generation 29.6Transfers 1.6 GW
Net imports44GWh
In
49 Out
6
Zero-carbon share72%of generation
Nuclear 23%Hydro 2%Wind 42%Solar 5%

Transfers · Fri 21 Sept

Interconnectors and storage

On Friday 21 September 2018, Great Britain imported 49 GWh and exported 6 GWh through its interconnectors. The most came from France (28 GWh), and the most exports went to Ireland (5 GWh).

All interconnectors

Fri 21 Sept
Imported
49GWh
Exported
6GWh
Net in
44GWh
Average net flow
1.82GW 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

Average1.15GWImporting

In 28.3 GWhOut 0.7 GWh

Ireland

Moyle · East–West · Greenlink

Average0.09GWExporting

In 2.7 GWhOut 4.9 GWh

Netherlands

BritNed

Average0.76GWImporting

In 18.4 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.20GWPumping

Generated 5.2 GWhPumped 10.1 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.