Electricity Live

Great Britain’s electricity on Tuesday 25 September 2018

On Tuesday 25 September, demand averaged 33.1 GW. Renewables supplied 27%.

33.1GW AVERAGEWind6.57 GW20%Hydro0.49 GW1%Biomass2.74 GW8%Solar2.03 GW6%Gas8.71 GW26%Coal3.07 GW9%Imports3.00 GW9%Nuclear6.81 GW20%33.1GW AVERAGE20%8%26%9%9%20%
Price
£68.67/MWh
Day average £68.67
Demand33.1GW
Generation 30.4Transfers 2.6
Fossil fuels26%
Renewables27%
Other38%
Carbon intensityModerate
244g/kWh
0Day average 244300
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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 25 September 2018, gas supplied 26% of Great Britain’s electricity and nuclear 20%. Demand peaked at 40.7 GW at 19:30. Carbon intensity averaged 244 g/kWh and the price £68.67/MWh. Wind generation peaked at 10.0 GW at 21:00. Solar generation peaked at 6.8 GW at 12:00. Carbon intensity was lowest at 23:30 (145 g/kWh) and highest at 07:00 (314 g/kWh). The wholesale price ranged from £49.14/MWh at 14:30 to £101.26/MWh at 08:00. Gas made 29% 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 2.036.1%Wind 6.5719.7%Gas 8.7126.0%Hydro 0.491.5%Biomass 2.748.2%Nuclear 6.8120.4%Coal 3.079.2%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 33.1avgGeneration 30.4avgTransfers 2.6avg
The day in figurespeaks, averages, totals
Peak demand40.7GW · 19:30
Low 23.1 · 03:40Avg 33.10–60 GW
Made in Great Britain92%of demand
Generation 30.4Transfers 2.6 GW
Net imports67GWh
In
68 Out
1
Zero-carbon share52%of generation
Nuclear 22%Hydro 2%Wind 22%Solar 7%

Transfers · Tue 25 Sept

Interconnectors and storage

On Tuesday 25 September 2018, Great Britain imported 68 GWh and exported 1 GWh through its interconnectors. The most came from France (45 GWh), and the most exports went to Ireland (1 GWh).

All interconnectors

Tue 25 Sept
Imported
68GWh
Exported
1GWh
Net in
67GWh
Average net flow
2.78GW 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

Average1.87GWImporting

In 44.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.14GWImporting

In 4.5 GWhOut 1.1 GWh

Netherlands

BritNed

Average0.77GWImporting

In 18.5 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.16GWPumping

Generated 4.2 GWhPumped 8.0 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.