Electricity Live

Great Britain’s electricity on Tuesday 27 July 2021

On Tuesday 27 July, demand averaged 29.0 GW. Renewables supplied 13%.

29.0GW AVERAGEWind2.18 GW7%Hydro0.14 GW0%Biomass2.97 GW10%Solar1.67 GW6%Gas14.01 GW47%Coal0.81 GW3%Imports4.76 GW16%Nuclear3.47 GW12%29.0GW AVERAGE7%10%47%16%12%
Price
£94.74/MWh
Day average £94.74
Demand29.0GW
Generation 25.3Transfers 3.8
Fossil fuels47%
Renewables13%
Other37%
Carbon intensityHigh
239g/kWh
0Day average 239300
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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 27 July 2021, gas supplied 47% of Great Britain’s electricity and nuclear 12%. Demand peaked at 35.2 GW at 12:00. Carbon intensity averaged 239 g/kWh and the price £94.74/MWh. Wind generation peaked at 3.7 GW at 22:15. Solar generation peaked at 4.9 GW at 12:00. Carbon intensity was lowest at 23:30 (209 g/kWh) and highest at 07:30 (260 g/kWh). The wholesale price ranged from £66.23/MWh at 00:30 to £116.08/MWh at 19:00. Gas made 55% of the electricity generated in Great Britain, compared with 42% across 2021.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 1.675.5%Wind 2.187.3%Gas 14.0146.7%Hydro 0.140.5%Biomass 2.979.9%Nuclear 3.4711.6%Coal 0.812.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.0avgGeneration 25.3avgTransfers 3.8avg
The day in figurespeaks, averages, totals
Peak demand35.2GW · 12:00
Low 20.7 · 03:45Avg 29.00–40 GW
Made in Great Britain87%of demand
Generation 25.3Transfers 3.8 GW
Net imports90GWh
In
108 Out
18
Zero-carbon share30%of generation
Nuclear 14%Hydro 1%Wind 9%Solar 7%

Transfers · Tue 27 Jul

Interconnectors and storage

On Tuesday 27 July 2021, Great Britain imported 108 GWh and exported 18 GWh through its interconnectors. The most came from France (63 GWh), and the most exports went to Ireland (18 GWh).

All interconnectors

Tue 27 Jul
Imported
108GWh
Exported
18GWh
Net in
90GWh
Average net flow
3.75GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.96GWImporting

In 23.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.62GWImporting

In 62.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.76GWExporting

In 0.0 GWhOut 18.3 GWh

Netherlands

BritNed

Average0.94GWImporting

In 22.5 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.00GWIdle

Generated 5.9 GWhPumped 5.8 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.