Electricity Live

Great Britain’s electricity on Wednesday 19 September 2018

On Wednesday 19 September, demand averaged 31.9 GW. Renewables supplied 42%.

31.9GW AVERAGEWind11.92 GW37%Hydro0.59 GW2%Biomass2.44 GW7%Solar1.15 GW4%Gas6.70 GW21%Coal0.74 GW2%Imports1.86 GW6%Nuclear7.22 GW22%31.9GW AVERAGE37%7%21%22%
Price
£54.86/MWh
Day average £54.86
Demand31.9GW
Generation 30.8Transfers 1.1
Fossil fuels21%
Renewables42%
Other35%
Carbon intensityLow
142g/kWh
0Day average 142300
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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 19 September 2018, wind supplied 37% of Great Britain’s electricity and nuclear 22%. Demand peaked at 38.7 GW at 16:55. Carbon intensity averaged 142 g/kWh and the price £54.86/MWh. Wind generation peaked at 14.7 GW at 17:35. Solar generation peaked at 3.9 GW at 13:30. Carbon intensity was lowest at 22:30 (107 g/kWh) and highest at 20:00 (171 g/kWh). The wholesale price ranged from £20.92/MWh at 01:00 to £75.19/MWh at 19:30. Wind made 39% of the electricity generated in Great Britain, compared with 19% across 2018.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 1.153.5%Wind 11.9236.5%Gas 6.7020.5%Hydro 0.591.8%Biomass 2.447.5%Nuclear 7.2222.1%Coal 0.742.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.9avgGeneration 30.8avgTransfers 1.1avg
The day in figurespeaks, averages, totals
Peak demand38.7GW · 16:55
Low 21.3 · 04:05Avg 31.90–40 GW
Made in Great Britain96%of demand
Generation 30.8Transfers 1.1 GW
Net imports27GWh
In
38 Out
11
Zero-carbon share68%of generation
Nuclear 23%Hydro 2%Wind 39%Solar 4%

Transfers · Wed 19 Sept

Interconnectors and storage

On Wednesday 19 September 2018, Great Britain imported 38 GWh and exported 11 GWh through its interconnectors. The most came from France (32 GWh), and the most exports went to France (8 GWh).

All interconnectors

Wed 19 Sept
Imported
38GWh
Exported
11GWh
Net in
27GWh
Average net flow
1.13GW 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

Average1.00GWImporting

In 31.7 GWhOut 7.6 GWh

Ireland

Moyle · East–West · Greenlink

Average0.06GWImporting

In 5.1 GWhOut 3.6 GWh

Netherlands

BritNed

Average0.06GWImporting

In 1.4 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.01GWPumping

Generated 6.5 GWhPumped 6.7 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.