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Daily UK grid report
UK Electricity Grid Daily Report — 17 May 2026

On 17 May 2026, Britain’s electricity grid averaged 27.55 GW of grid demand, with renewables averaging 56.3% of tracked domestic generation and carbon intensity averaging 153 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 27.55 GW

Average grid demand for this UK day.

Peak demand 32.64 GW

Highest 15-minute grid demand period.

Avg carbon 153 gCO₂/kWh

Average carbon intensity where available.

Renewables 56.3 %

Average renewable share of tracked generation.

Average grid demandDemand
27.55 GWFull-day average from available snapshots
↓ −0.76 GW vs yesterday
Peak demand18:00
32.64 GWHighest 15-minute grid demand period
↑ +0.60 GW vs yesterday
Lowest demand04:30
20.81 GWLowest 15-minute grid demand period
↓ −2.58 GW vs yesterday
Domestic generationSupply
20.78 GWTracked UK generation sources only
↑ +0.35 GW vs yesterday
Average carbonCO₂
153 gCO₂/kWhCarbon intensity average
↓ −38 g vs yesterday
Renewable shareClean
56.3 %Wind, solar, hydro and biomass
↑ +10.7 pts vs yesterday
Clean share+ Nuclear
72.0 %Renewables plus nuclear
↑ +10.6 pts vs yesterday
Net importsFlow
6.34 GWAverage imports minus exports
↓ −0.81 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 17 May 2026, Britain’s electricity grid averaged 27.55 GW of grid demand, with renewables averaging 56.3% of tracked domestic generation and carbon intensity averaging 153 gCO₂/kWh.

The highest demand period was 32.64 GW at 18:00, while the lowest carbon intensity period was 105 gCO₂/kWh at 02:30.

Key records for 17 May 2026

Highest wind7.69 GW02:00
Highest solar10.88 GW13:30
Highest gas11.89 GW19:30
Lowest carbon105 gCO₂/kWh02:30
Highest imports8.34 GW10:15
Highest exports1.50 GW22:00

Daily chart

Demand, generation and carbon intensity

17 May 2026

Generation mix

Wind, solar, gas and interconnector flow