Electricity Live

Great Britain’s electricity on Saturday 21 April 2018

On Saturday 21 April, demand averaged 28.6 GW. Renewables supplied 19%.

28.6GW AVERAGEWind2.97 GW10%Hydro0.40 GW1%Biomass1.80 GW6%Solar2.20 GW8%Gas11.97 GW41%Coal0.10 GW0%Imports2.71 GW9%Nuclear6.98 GW24%28.6GW AVERAGE10%8%41%9%24%
Price
£47.02/MWh
Day average £47.02
Demand28.6GW
Generation 26.4Transfers 2.2
Fossil fuels41%
Renewables19%
Other39%
Carbon intensityModerate
222g/kWh
0Day average 222300
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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 Saturday 21 April 2018, gas supplied 41% of Great Britain’s electricity and nuclear 24%. Demand peaked at 33.7 GW at 11:00. Carbon intensity averaged 222 g/kWh and the price £47.02/MWh. Wind generation peaked at 6.5 GW at 23:35. Solar generation peaked at 6.6 GW at 12:30. Carbon intensity was lowest at 23:30 (155 g/kWh) and highest at 01:00 (285 g/kWh). The wholesale price ranged from £34.07/MWh at 14:30 to £64.65/MWh at 20:00. Gas made 45% 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 2.207.6%Wind 2.9710.2%Gas 11.9741.1%Hydro 0.401.4%Biomass 1.806.2%Nuclear 6.9824.0%Coal 0.100.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.6avgGeneration 26.4avgTransfers 2.2avg
The day in figurespeaks, averages, totals
Peak demand33.7GW · 11:00
Low 21.9 · 04:55Avg 28.60–40 GW
Made in Great Britain92%of demand
Generation 26.4Transfers 2.2 GW
Net imports56GWh
In
59 Out
4
Zero-carbon share47%of generation
Nuclear 26%Hydro 2%Wind 11%Solar 8%

Transfers · Sat 21 Apr

Interconnectors and storage

On Saturday 21 April 2018, Great Britain imported 59 GWh and exported 4 GWh through its interconnectors. The most came from France (34 GWh), and the most exports went to Ireland (4 GWh).

All interconnectors

Sat 21 Apr
Imported
59GWh
Exported
4GWh
Net in
56GWh
Average net flow
2.33GW 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

Average1.41GWImporting

In 33.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.02GWExporting

In 3.1 GWhOut 3.6 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

Average0.17GWPumping

Generated 5.6 GWhPumped 9.7 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.