Electricity Live

Great Britain’s electricity on Tuesday 11 September 2018

On Tuesday 11 September, demand averaged 31.8 GW. Renewables supplied 37%.

31.8GW AVERAGEWind10.83 GW33%Hydro0.25 GW1%Biomass2.53 GW8%Solar0.96 GW3%Gas7.61 GW23%Coal2.15 GW7%Imports1.40 GW4%Nuclear7.16 GW22%31.8GW AVERAGE33%8%23%22%
Price
£55.84/MWh
Day average £55.84
Demand31.8GW
Generation 31.5Transfers 0.3
Fossil fuels23%
Renewables37%
Other34%
Carbon intensityModerate
194g/kWh
0Day average 194300
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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 11 September 2018, wind supplied 33% of Great Britain’s electricity and gas 23%. Demand peaked at 38.1 GW at 12:05. Carbon intensity averaged 194 g/kWh and the price £55.84/MWh. Wind generation peaked at 12.6 GW at 07:45. Solar generation peaked at 3.1 GW at 12:30. Carbon intensity was lowest at 00:30 (116 g/kWh) and highest at 19:30 (247 g/kWh). The wholesale price ranged from £20.73/MWh at 04:30 to £73.94/MWh at 20:00. Wind made 34% of the electricity generated in Great Britain, compared with 19% across 2018.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.962.9%Wind 10.8332.9%Gas 7.6123.1%Hydro 0.250.8%Biomass 2.537.7%Nuclear 7.1621.8%Coal 2.156.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.8avgGeneration 31.5avgTransfers 0.3avg
The day in figurespeaks, averages, totals
Peak demand38.1GW · 12:05
Low 21.3 · 03:20Avg 31.80–40 GW
Made in Great Britain99%of demand
Generation 31.5Transfers 0.3 GW
Net imports13GWh
In
29 Out
16
Zero-carbon share61%of generation
Nuclear 23%Hydro 1%Wind 34%Solar 3%

Transfers · Tue 11 Sept

Interconnectors and storage

On Tuesday 11 September 2018, Great Britain imported 29 GWh and exported 16 GWh through its interconnectors. The most came from France (17 GWh), and the most exports went to Ireland (8 GWh).

All interconnectors

Tue 11 Sept
Imported
29GWh
Exported
16GWh
Net in
13GWh
Average net flow
0.54GW 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

Average0.54GWImporting

In 16.8 GWhOut 3.9 GWh

Ireland

Moyle · East–West · Greenlink

Average0.30GWExporting

In 0.8 GWhOut 7.9 GWh

Netherlands

BritNed

Average0.30GWImporting

In 11.1 GWhOut 3.8 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.25GWPumping

Generated 4.8 GWhPumped 10.9 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.