Electricity Live

Great Britain’s electricity on Wednesday 4 September 2019

On Wednesday 4 September, demand averaged 30.7 GW. Renewables supplied 46%.

30.7GW AVERAGEWind11.88 GW38%Hydro0.63 GW2%Biomass2.26 GW7%Solar1.94 GW6%Gas5.87 GW19%Coal0.49 GW2%Imports1.88 GW6%Nuclear6.20 GW20%30.7GW AVERAGE38%7%19%20%
Price
£35.04/MWh
Day average £35.04
Demand30.7GW
Generation 29.3Transfers 1.4
Fossil fuels19%
Renewables46%
Other33%
Carbon intensityLow
122g/kWh
0Day average 122300
Save as image
Recorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hour

Records set on this day

All records

Key moments

On Wednesday 4 September 2019, wind supplied 38% of Great Britain’s electricity and nuclear 20%. Demand peaked at 37.0 GW at 11:30. Carbon intensity averaged 122 g/kWh and the price £35.04/MWh. Wind generation peaked at 14.3 GW at 18:40. Solar generation peaked at 7.0 GW at 12:30. Carbon intensity was lowest at 23:30 (78 g/kWh) and highest at 19:00 (161 g/kWh). The wholesale price ranged from £9.13/MWh at 23:30 to £50.88/MWh at 06:30. Wind made 41% of the electricity generated in Great Britain, compared with 22% across 2019.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 1.946.2%Wind 11.8838.1%Gas 5.8718.8%Hydro 0.632.0%Biomass 2.267.2%Nuclear 6.2019.9%Coal 0.491.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 30.7avgGeneration 29.3avgTransfers 1.4avg
The day in figurespeaks, averages, totals
Peak demand37.0GW · 11:30
Low 21.3 · 03:00Avg 30.70–40 GW
Made in Great Britain95%of demand
Generation 29.3Transfers 1.4 GW
Net imports34GWh
In
43 Out
9
Zero-carbon share71%of generation
Nuclear 21%Hydro 2%Wind 41%Solar 7%

Transfers · Wed 4 Sept

Interconnectors and storage

On Wednesday 4 September 2019, Great Britain imported 43 GWh and exported 9 GWh through its interconnectors. The most came from France (22 GWh), and the most exports went to France (6 GWh).

All interconnectors

Wed 4 Sept
Imported
43GWh
Exported
9GWh
Net in
34GWh
Average net flow
1.42GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.29GWImporting

In 7.6 GWhOut 0.6 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.64GWImporting

In 21.7 GWhOut 6.4 GWh

Ireland

Moyle · East–West · Greenlink

Average0.31GWImporting

In 8.2 GWhOut 0.8 GWh

Netherlands

BritNed

Average0.18GWImporting

In 5.4 GWhOut 1.2 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.03GWPumping

Generated 2.1 GWhPumped 2.7 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.