Electricity Live

Great Britain’s electricity on Wednesday 20 September 2017

On Wednesday 20 September, demand averaged 31.5 GW. Renewables supplied 18%.

31.5GW AVERAGEWind4.57 GW14%Hydro0.40 GW1%Solar0.97 GW3%Gas14.79 GW46%Coal2.13 GW7%Imports1.55 GW5%Nuclear7.73 GW24%31.5GW AVERAGE14%46%24%
Price
£47.74/MWh
Day average £47.74
Demand31.5GW
Generation 30.6Transfers 0.9
Fossil fuels46%
Renewables18%
Other29%
Carbon intensity
—
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Key moments

On Wednesday 20 September 2017, gas supplied 46% of Great Britain’s electricity and nuclear 24%. Demand peaked at 38.6 GW at 19:30. The price £47.74/MWh. Wind generation peaked at 6.2 GW at 22:00. Solar generation peaked at 3.9 GW at 11:30. The wholesale price ranged from £37.07/MWh at 00:30 to £66.19/MWh at 09:00. Gas made 48% of the electricity generated in Great Britain, compared with 43% across 2017.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.973.0%Wind 4.5714.2%Gas 14.7946.0%Hydro 0.401.2%Biomass 0.000.0%Nuclear 7.7324.0%Coal 2.136.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.5avgGeneration 30.6avgTransfers 0.9avg
The day in figurespeaks, averages, totals
Peak demand38.6GW · 19:30
Low 21.2 · 03:25Avg 31.50–40 GW
Made in Great Britain97%of demand
Generation 30.6Transfers 0.9 GW
Net imports21GWh
In
29 Out
8
Zero-carbon share45%of generation
Nuclear 25%Hydro 1%Wind 15%Solar 3%

Transfers · Wed 20 Sept

Interconnectors and storage

On Wednesday 20 September 2017, Great Britain imported 29 GWh and exported 8 GWh through its interconnectors. The most came from Netherlands (12 GWh), and the most exports went to Ireland (8 GWh).

All interconnectors

Wed 20 Sept
Imported
29GWh
Exported
8GWh
Net in
21GWh
Average net flow
0.87GW 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

Average0.49GWImporting

In 11.7 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.11GWExporting

In 5.7 GWhOut 8.3 GWh

Netherlands

BritNed

Average0.49GWImporting

In 11.8 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.06GWGenerating

Generated 7.9 GWhPumped 6.5 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.