Electricity Live

Great Britain’s electricity on Tuesday 4 September 2018

On Tuesday 4 September, demand averaged 31.2 GW. Renewables supplied 13%.

31.2GW AVERAGEWind2.81 GW9%Hydro0.13 GW0%Biomass2.13 GW7%Solar1.14 GW4%Gas14.29 GW45%Coal2.03 GW6%Imports1.56 GW5%Nuclear7.87 GW25%31.2GW AVERAGE9%45%25%
Price
£61.96/MWh
Day average £61.96
Demand31.2GW
Generation 30.4Transfers 0.8
Fossil fuels45%
Renewables13%
Other36%
Carbon intensityHigh
295g/kWh
0Day average 295300
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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 Tuesday 4 September 2018, gas supplied 45% of Great Britain’s electricity and nuclear 25%. Demand peaked at 37.5 GW at 17:25. Carbon intensity averaged 295 g/kWh and the price £61.96/MWh. Wind generation peaked at 3.7 GW at 18:50. Solar generation peaked at 3.8 GW at 13:30. Carbon intensity was lowest at 02:30 (243 g/kWh) and highest at 10:00 (324 g/kWh). The wholesale price ranged from £0.00/MWh at 01:00 to £70.85/MWh at 17:30. Gas made 47% 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 1.143.6%Wind 2.818.8%Gas 14.2944.7%Hydro 0.130.4%Biomass 2.136.7%Nuclear 7.8724.6%Coal 2.036.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.2avgGeneration 30.4avgTransfers 0.8avg
The day in figurespeaks, averages, totals
Peak demand37.5GW · 17:25
Low 21.2 · 03:15Avg 31.20–40 GW
Made in Great Britain97%of demand
Generation 30.4Transfers 0.8 GW
Net imports22GWh
In
33 Out
12
Zero-carbon share39%of generation
Nuclear 26%Hydro 0%Wind 9%Solar 4%

Transfers · Tue 4 Sept

Interconnectors and storage

On Tuesday 4 September 2018, Great Britain imported 33 GWh and exported 12 GWh through its interconnectors. The most came from France (16 GWh), and the most exports went to Ireland (11 GWh).

All interconnectors

Tue 4 Sept
Imported
33GWh
Exported
12GWh
Net in
22GWh
Average net flow
0.90GW 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

Average0.65GWImporting

In 16.2 GWhOut 0.5 GWh

Ireland

Moyle · East–West · Greenlink

Average0.36GWExporting

In 2.5 GWhOut 11.1 GWh

Netherlands

BritNed

Average0.60GWImporting

In 14.5 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.08GWPumping

Generated 4.4 GWhPumped 6.4 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.