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Daily UK grid report
UK Electricity Grid Daily Report — 23 May 2026

On 23 May 2026, Britain’s electricity grid averaged 27.51 GW of grid demand, with renewables averaging 59.5% of tracked domestic generation and carbon intensity averaging 146 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 27.51 GW

Average grid demand for this UK day.

Peak demand 31.78 GW

Highest 15-minute grid demand period.

Avg carbon 146 gCO₂/kWh

Average carbon intensity where available.

Renewables 59.5 %

Average renewable share of tracked generation.

Average grid demandDemand
27.51 GWFull-day average from available snapshots
↓ −3.19 GW vs yesterday
Peak demand13:00
31.78 GWHighest 15-minute grid demand period
↓ −5.14 GW vs yesterday
Lowest demand04:45
21.66 GWLowest 15-minute grid demand period
↓ −2.42 GW vs yesterday
Domestic generationSupply
21.74 GWTracked UK generation sources only
↓ −3.91 GW vs yesterday
Average carbonCO₂
146 gCO₂/kWhCarbon intensity average
↑ +18 g vs yesterday
Renewable shareClean
59.5 %Wind, solar, hydro and biomass
↓ −3.2 pts vs yesterday
Clean share+ Nuclear
69.8 %Renewables plus nuclear
↓ −2.2 pts vs yesterday
Net importsFlow
4.97 GWAverage imports minus exports
↑ +1.01 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 23 May 2026, Britain’s electricity grid averaged 27.51 GW of grid demand, with renewables averaging 59.5% of tracked domestic generation and carbon intensity averaging 146 gCO₂/kWh.

The highest demand period was 31.78 GW at 13:00, while the lowest carbon intensity period was 95 gCO₂/kWh at 03:00.

Key records for 23 May 2026

Highest wind10.74 GW00:30
Highest solar14.72 GW13:00
Highest gas12.19 GW20:00
Lowest carbon95 gCO₂/kWh03:00
Highest imports6.97 GW09:00
Highest exports2.37 GW20:30

Daily chart

Demand, generation and carbon intensity

23 May 2026

Generation mix

Wind, solar, gas and interconnector flow