Electricity Live

Great Britain’s electricity on Saturday 22 September 2018

On Saturday 22 September, demand averaged 29.4 GW. Renewables supplied 25%.

29.4GW AVERAGEWind6.46 GW21%Hydro0.58 GW2%Biomass2.02 GW7%Solar0.53 GW2%Gas9.47 GW31%Coal1.91 GW6%Imports2.51 GW8%Nuclear6.82 GW23%29.4GW AVERAGE21%31%8%23%
Price
£70.58/MWh
Day average £70.58
Demand29.4GW
Generation 27.8Transfers 1.7
Fossil fuels31%
Renewables25%
Other37%
Carbon intensityModerate
232g/kWh
0Day average 232300
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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 Saturday 22 September 2018, gas supplied 31% of Great Britain’s electricity and nuclear 23%. Demand peaked at 34.7 GW at 19:25. Carbon intensity averaged 232 g/kWh and the price £70.58/MWh. Wind generation peaked at 10.7 GW at 00:00. Solar generation peaked at 1.9 GW at 13:00. Carbon intensity was lowest at 00:30 (149 g/kWh) and highest at 20:00 (321 g/kWh). The wholesale price ranged from £39.35/MWh at 02:30 to £91.34/MWh at 20:00. Gas made 34% 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 0.531.7%Wind 6.4621.3%Gas 9.4731.3%Hydro 0.581.9%Biomass 2.026.7%Nuclear 6.8222.5%Coal 1.916.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.4avgGeneration 27.8avgTransfers 1.7avg
The day in figurespeaks, averages, totals
Peak demand34.7GW · 19:25
Low 21.3 · 04:35Avg 29.40–40 GW
Made in Great Britain94%of demand
Generation 27.8Transfers 1.7 GW
Net imports38GWh
In
53 Out
15
Zero-carbon share52%of generation
Nuclear 25%Hydro 2%Wind 23%Solar 2%

Transfers · Sat 22 Sept

Interconnectors and storage

On Saturday 22 September 2018, Great Britain imported 53 GWh and exported 15 GWh through its interconnectors. The most came from France (33 GWh), and the most exports went to Ireland (9 GWh).

All interconnectors

Sat 22 Sept
Imported
53GWh
Exported
15GWh
Net in
38GWh
Average net flow
1.59GW 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

Average1.12GWImporting

In 32.9 GWhOut 6.1 GWh

Ireland

Moyle · East–West · Greenlink

Average0.35GWExporting

In 0.5 GWhOut 9.0 GWh

Netherlands

BritNed

Average0.83GWImporting

In 19.9 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.08GWGenerating

Generated 7.0 GWhPumped 5.1 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.