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

On 17 March 2026, Britain’s electricity grid averaged 37.61 GW of grid demand, with renewables averaging 71.4% of tracked domestic generation and carbon intensity averaging 73 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 37.61 GW

Average grid demand for this UK day.

Peak demand 44.69 GW

Highest 15-minute grid demand period.

Avg carbon 73 gCO₂/kWh

Average carbon intensity where available.

Renewables 71.4 %

Average renewable share of tracked generation.

Average grid demandDemand
37.61 GWFull-day average from available snapshots
↑ +0.22 GW vs yesterday
Peak demand12:00
44.69 GWHighest 15-minute grid demand period
↑ +1.85 GW vs yesterday
Lowest demand23:30
30.16 GWLowest 15-minute grid demand period
↑ +0.38 GW vs yesterday
Domestic generationSupply
33.54 GWTracked UK generation sources only
↑ +0.42 GW vs yesterday
Average carbonCO₂
73 gCO₂/kWhCarbon intensity average
↓ −22 g vs yesterday
Renewable shareClean
71.4 %Wind, solar, hydro and biomass
↑ +3.0 pts vs yesterday
Clean share+ Nuclear
82.2 %Renewables plus nuclear
↑ +3.1 pts vs yesterday
Net importsFlow
1.45 GWAverage imports minus exports
↓ −1.27 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 17 March 2026, Britain’s electricity grid averaged 37.61 GW of grid demand, with renewables averaging 71.4% of tracked domestic generation and carbon intensity averaging 73 gCO₂/kWh.

The highest demand period was 44.69 GW at 12:00, while the lowest carbon intensity period was 37 gCO₂/kWh at 13:30.

Key records for 17 March 2026

Highest wind19.92 GW00:00
Highest solar12.35 GW12:30
Highest gas9.63 GW18:30
Lowest carbon37 gCO₂/kWh13:30
Highest imports7.14 GW21:00
Highest exports4.41 GW02:30

Daily chart

Demand, generation and carbon intensity

17 March 2026

Generation mix

Wind, solar, gas and interconnector flow