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Daily UK grid report
UK Electricity Grid Daily Report — 27 May 2026

On 27 May 2026, Britain’s electricity grid averaged 30.39 GW of grid demand, with renewables averaging 62.2% of tracked domestic generation and carbon intensity averaging 140 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 30.39 GW

Average grid demand for this UK day.

Peak demand 35.53 GW

Highest 15-minute grid demand period.

Avg carbon 140 gCO₂/kWh

Average carbon intensity where available.

Renewables 62.2 %

Average renewable share of tracked generation.

Average grid demandDemand
30.39 GWFull-day average from available snapshots
↓ −1.28 GW vs yesterday
Peak demand13:45
35.53 GWHighest 15-minute grid demand period
↓ −2.37 GW vs yesterday
Lowest demand04:45
24.02 GWLowest 15-minute grid demand period
↓ −0.13 GW vs yesterday
Domestic generationSupply
25.00 GWTracked UK generation sources only
↓ −1.16 GW vs yesterday
Average carbonCO₂
140 gCO₂/kWhCarbon intensity average
↓ −63 g vs yesterday
Renewable shareClean
62.2 %Wind, solar, hydro and biomass
↑ +17.3 pts vs yesterday
Clean share+ Nuclear
72.0 %Renewables plus nuclear
↑ +16.0 pts vs yesterday
Net importsFlow
4.53 GWAverage imports minus exports
↑ +0.57 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 27 May 2026, Britain’s electricity grid averaged 30.39 GW of grid demand, with renewables averaging 62.2% of tracked domestic generation and carbon intensity averaging 140 gCO₂/kWh.

The highest demand period was 35.53 GW at 13:45, while the lowest carbon intensity period was 97 gCO₂/kWh at 15:00.

Key records for 27 May 2026

Highest wind10.50 GW17:00
Highest solar14.30 GW13:30
Highest gas9.82 GW21:30
Lowest carbon97 gCO₂/kWh15:00
Highest imports6.80 GW07:00
Highest exports2.69 GW05:00

Daily chart

Demand, generation and carbon intensity

27 May 2026

Generation mix

Wind, solar, gas and interconnector flow