Electricity Live

Great Britain’s electricity on Wednesday 21 March 2018

On Wednesday 21 March, demand averaged 39.6 GW. Renewables supplied 22%.

39.6GW AVERAGEWind6.78 GW17%Hydro0.19 GW0%Biomass1.98 GW5%Solar1.98 GW5%Gas14.51 GW36%Coal5.45 GW14%Imports1.70 GW4%Nuclear7.67 GW19%39.6GW AVERAGE17%36%14%19%
Price
£52.78/MWh
Day average £52.78
Demand39.6GW
Generation 38.6Transfers 1.1
Fossil fuels36%
Renewables22%
Other28%
Carbon intensityHigh
320g/kWh
0Day average 320300
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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 Wednesday 21 March 2018, gas supplied 36% of Great Britain’s electricity and nuclear 19%. Demand peaked at 47.3 GW at 18:45. Carbon intensity averaged 320 g/kWh and the price £52.78/MWh. Wind generation peaked at 10.8 GW at 21:25. Solar generation peaked at 7.2 GW at 11:30. Carbon intensity was lowest at 23:30 (215 g/kWh) and highest at 06:00 (396 g/kWh). The wholesale price ranged from £38.75/MWh at 23:00 to £79.30/MWh at 06:00. Gas made 38% 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 1.984.9%Wind 6.7816.8%Gas 14.5136.0%Hydro 0.190.5%Biomass 1.984.9%Nuclear 7.6719.1%Coal 5.4513.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 39.6avgGeneration 38.6avgTransfers 1.1avg
The day in figurespeaks, averages, totals
Peak demand47.3GW · 18:45
Low 30.1 · 23:55Avg 39.60–60 GW
Made in Great Britain97%of demand
Generation 38.6Transfers 1.1 GW
Net imports29GWh
In
35 Out
7
Zero-carbon share43%of generation
Nuclear 20%Hydro 1%Wind 18%Solar 5%

Transfers · Wed 21 Mar

Interconnectors and storage

On Wednesday 21 March 2018, Great Britain imported 35 GWh and exported 7 GWh through its interconnectors. The most came from France (23 GWh), and the most exports went to Ireland (4 GWh).

All interconnectors

Wed 21 Mar
Imported
35GWh
Exported
7GWh
Net in
29GWh
Average net flow
1.19GW 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

Average0.98GWImporting

In 23.4 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.08GWExporting

In 2.4 GWhOut 4.4 GWh

Netherlands

BritNed

Average0.30GWImporting

In 9.5 GWhOut 2.4 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.13GWPumping

Generated 5.5 GWhPumped 8.7 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.