Electricity Live

Great Britain’s electricity on Wednesday 27 September 2017

On Wednesday 27 September, demand averaged 31.7 GW. Renewables supplied 26%.

31.7GW AVERAGEWind7.19 GW22%Hydro0.33 GW1%Solar0.84 GW3%Gas13.52 GW42%Coal1.37 GW4%Imports2.12 GW7%Nuclear6.98 GW22%31.7GW AVERAGE22%42%22%
Price
£47.76/MWh
Day average £47.76
Demand31.7GW
Generation 30.2Transfers 1.5
Fossil fuels42%
Renewables26%
Other28%
Carbon intensityModerate
246g/kWh
0Day average 246300
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Recorded 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 Wednesday 27 September 2017, gas supplied 42% of Great Britain’s electricity and wind 22%. Demand peaked at 39.5 GW at 19:00. Carbon intensity averaged 246 g/kWh and the price £47.76/MWh. Wind generation peaked at 9.9 GW at 20:30. Solar generation peaked at 3.8 GW at 12:30. Carbon intensity was lowest at 23:30 (186 g/kWh) and highest at 07:00 (276 g/kWh). The wholesale price ranged from £30.89/MWh at 23:30 to £69.94/MWh at 19:00. Gas made 45% 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 0.842.6%Wind 7.1922.2%Gas 13.5241.8%Hydro 0.331.0%Biomass 0.000.0%Nuclear 6.9821.6%Coal 1.374.2%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.7avgGeneration 30.2avgTransfers 1.5avg
The day in figurespeaks, averages, totals
Peak demand39.5GW · 19:00
Low 21.1 · 03:55Avg 31.70–40 GW
Made in Great Britain95%of demand
Generation 30.2Transfers 1.5 GW
Net imports40GWh
In
44 Out
4
Zero-carbon share51%of generation
Nuclear 23%Hydro 1%Wind 24%Solar 3%

Transfers · Wed 27 Sept

Interconnectors and storage

On Wednesday 27 September 2017, Great Britain imported 44 GWh and exported 4 GWh through its interconnectors. The most came from Netherlands (21 GWh), and the most exports went to Ireland (3 GWh).

All interconnectors

Wed 27 Sept
Imported
44GWh
Exported
4GWh
Net in
40GWh
Average net flow
1.67GW 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

Average0.61GWImporting

In 16.2 GWhOut 1.6 GWh

Ireland

Moyle · East–West · Greenlink

Average0.19GWImporting

In 7.3 GWhOut 2.8 GWh

Netherlands

BritNed

Average0.87GWImporting

In 21.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.16GWPumping

Generated 6.4 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.