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Daily UK grid report
UK Electricity Grid Daily Report — 20 March 2026

On 20 March 2026, Britain’s electricity grid averaged 33.46 GW of grid demand, with renewables averaging 38.2% of tracked domestic generation and carbon intensity averaging 208 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 33.46 GW

Average grid demand for this UK day.

Peak demand 38.37 GW

Highest 15-minute grid demand period.

Avg carbon 208 gCO₂/kWh

Average carbon intensity where available.

Renewables 38.2 %

Average renewable share of tracked generation.

Average grid demandDemand
33.46 GWFull-day average from available snapshots
↓ −0.12 GW vs yesterday
Peak demand11:00
38.37 GWHighest 15-minute grid demand period
↓ −0.97 GW vs yesterday
Lowest demand04:15
26.89 GWLowest 15-minute grid demand period
↑ +0.61 GW vs yesterday
Domestic generationSupply
26.38 GWTracked UK generation sources only
↓ −0.76 GW vs yesterday
Average carbonCO₂
208 gCO₂/kWhCarbon intensity average
↓ −11 g vs yesterday
Renewable shareClean
38.2 %Wind, solar, hydro and biomass
↑ +1.0 pts vs yesterday
Clean share+ Nuclear
53.8 %Renewables plus nuclear
↑ +1.6 pts vs yesterday
Net importsFlow
5.43 GWAverage imports minus exports
↑ +0.53 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 20 March 2026, Britain’s electricity grid averaged 33.46 GW of grid demand, with renewables averaging 38.2% of tracked domestic generation and carbon intensity averaging 208 gCO₂/kWh.

The highest demand period was 38.37 GW at 11:00, while the lowest carbon intensity period was 167 gCO₂/kWh at 05:00.

Key records for 20 March 2026

Highest wind4.88 GW21:00
Highest solar10.11 GW12:30
Highest gas16.88 GW18:30
Lowest carbon167 gCO₂/kWh05:00
Highest imports8.41 GW10:15
Highest exports4.27 GW05:45

Daily chart

Demand, generation and carbon intensity

20 March 2026

Generation mix

Wind, solar, gas and interconnector flow