Electricity Live

Great Britain’s electricity on Saturday 4 May 2019

On Saturday 4 May, demand averaged 29.5 GW. Renewables supplied 42%.

29.5GW AVERAGEWind9.78 GW33%Hydro0.16 GW1%Biomass1.64 GW5%Solar2.56 GW9%Gas6.80 GW23%Imports2.55 GW9%Nuclear6.41 GW21%29.5GW AVERAGE33%9%23%9%21%
Price
£36.86/MWh
Day average £36.86
Demand29.5GW
Generation 27.3Transfers 2.1
Fossil fuels23%
Renewables42%
Other35%
Carbon intensityLow
127g/kWh
0Day average 127300
Save as image
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 4 May 2019, wind supplied 33% of Great Britain’s electricity and gas 23%. Demand peaked at 34.8 GW at 12:05. Carbon intensity averaged 127 g/kWh and the price £36.86/MWh. Wind generation peaked at 12.3 GW at 10:00. Solar generation peaked at 7.7 GW at 13:00. Carbon intensity was lowest at 12:00 (85 g/kWh) and highest at 20:30 (184 g/kWh). The wholesale price ranged from £28.47/MWh at 05:30 to £50.88/MWh at 21:30. Wind made 36% 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 2.568.6%Wind 9.7832.7%Gas 6.8022.8%Hydro 0.160.5%Biomass 1.645.5%Nuclear 6.4121.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.5avgGeneration 27.3avgTransfers 2.1avg
The day in figurespeaks, averages, totals
Peak demand34.8GW · 12:05
Low 22.8 · 05:15Avg 29.50–40 GW
Made in Great Britain93%of demand
Generation 27.3Transfers 2.1 GW
Net imports54GWh
In
59 Out
5
Zero-carbon share69%of generation
Nuclear 23%Hydro 1%Wind 36%Solar 9%

Transfers · Sat 4 May

Interconnectors and storage

On Saturday 4 May 2019, Great Britain imported 59 GWh and exported 5 GWh through its interconnectors. The most came from France (21 GWh), and the most exports went to Ireland (3 GWh).

All interconnectors

Sat 4 May
Imported
59GWh
Exported
5GWh
Net in
54GWh
Average net flow
2.24GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.71GWImporting

In 16.9 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.82GWImporting

In 21.2 GWhOut 1.6 GWh

Ireland

Moyle · East–West · Greenlink

Average0.16GWImporting

In 6.8 GWhOut 3.0 GWh

Netherlands

BritNed

Average0.56GWImporting

In 14.0 GWhOut 0.6 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.10GWPumping

Generated 2.3 GWhPumped 4.8 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.