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Daily UK grid report
UK Electricity Grid Today — 26 September 2026

On 26 September 2026, Britain’s electricity grid averaged 22.50 GW of grid demand, with renewables averaging 45.6% of tracked domestic generation and carbon intensity averaging 114 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 22.50 GW

Average grid demand for this UK day.

Peak demand 23.45 GW

Highest 15-minute grid demand period.

Avg carbon 114 gCO₂/kWh

Average carbon intensity where available.

Renewables 45.6 %

Average renewable share of tracked generation.

Average grid demandDemand
22.50 GWFull-day average from available snapshots
↓ −7.74 GW vs yesterday
Peak demand00:00
23.45 GWHighest 15-minute grid demand period
↓ −11.93 GW vs yesterday
Lowest demand02:30
22.12 GWLowest 15-minute grid demand period
↓ −2.01 GW vs yesterday
Domestic generationSupply
20.60 GWTracked UK generation sources only
↓ −6.09 GW vs yesterday
Average carbonCO₂
114 gCO₂/kWhCarbon intensity average
↓ −27 g vs yesterday
Renewable shareClean
45.6 %Wind, solar, hydro and biomass
↓ −1.2 pts vs yesterday
Clean share+ Nuclear
65.1 %Renewables plus nuclear
↑ +3.1 pts vs yesterday
Net importsFlow
0.99 GWAverage imports minus exports
↓ −0.85 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 26 September 2026, Britain’s electricity grid averaged 22.50 GW of grid demand, with renewables averaging 45.6% of tracked domestic generation and carbon intensity averaging 114 gCO₂/kWh.

The highest demand period was 23.45 GW at 00:00, while the lowest carbon intensity period was 100 gCO₂/kWh at 01:00.

Key records for 26 September 2026

Highest wind6.32 GW02:00
Highest solar0.00 GW00:00
Highest gas6.75 GW01:30
Lowest carbon100 gCO₂/kWh01:00
Highest imports2.18 GW00:00
Highest exports1.19 GW02:00

Daily chart

Demand, generation and carbon intensity

26 September 2026

Generation mix

Wind, solar, gas and interconnector flow