Electricity Live

Great Britain’s electricity on Tuesday 21 August 2018

On Tuesday 21 August, demand averaged 31.3 GW. Renewables supplied 15%.

31.3GW AVERAGEWind2.65 GW8%Hydro0.25 GW1%Biomass1.49 GW5%Solar1.77 GW6%Gas15.36 GW48%Coal1.21 GW4%Imports2.09 GW7%Nuclear7.13 GW22%31.3GW AVERAGE8%48%22%
Price
£68.63/MWh
Day average £68.63
Demand31.3GW
Generation 29.9Transfers 1.4
Fossil fuels48%
Renewables15%
Other34%
Carbon intensityHigh
287g/kWh
0Day average 287300
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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 21 August 2018, gas supplied 48% of Great Britain’s electricity and nuclear 22%. Demand peaked at 37.8 GW at 13:00. Carbon intensity averaged 287 g/kWh and the price £68.63/MWh. Wind generation peaked at 6.0 GW at 23:05. Solar generation peaked at 5.8 GW at 15:00. Carbon intensity was lowest at 23:30 (187 g/kWh) and highest at 07:00 (335 g/kWh). The wholesale price ranged from £53.49/MWh at 02:30 to £95.47/MWh at 08:00. Gas made 51% 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 1.775.5%Wind 2.658.3%Gas 15.3648.1%Hydro 0.250.8%Biomass 1.494.7%Nuclear 7.1322.3%Coal 1.213.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.3avgGeneration 29.9avgTransfers 1.4avg
The day in figurespeaks, averages, totals
Peak demand37.8GW · 13:00
Low 22.0 · 04:45Avg 31.30–40 GW
Made in Great Britain96%of demand
Generation 29.9Transfers 1.4 GW
Net imports39GWh
In
46 Out
7
Zero-carbon share40%of generation
Nuclear 24%Hydro 1%Wind 9%Solar 6%

Transfers · Tue 21 Aug

Interconnectors and storage

On Tuesday 21 August 2018, Great Britain imported 46 GWh and exported 7 GWh through its interconnectors. The most came from France (35 GWh), and the most exports went to Netherlands (5 GWh).

All interconnectors

Tue 21 Aug
Imported
46GWh
Exported
7GWh
Net in
39GWh
Average net flow
1.63GW 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

Average1.44GWImporting

In 34.7 GWhOut 0.2 GWh

Ireland

Moyle · East–West · Greenlink

Average0.18GWImporting

In 6.1 GWhOut 1.7 GWh

Netherlands

BritNed

Average0.01GWImporting

In 5.2 GWhOut 4.9 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.24GWPumping

Generated 4.2 GWhPumped 9.9 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.