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Daily UK grid report
UK Electricity Grid Daily Report — 25 March 2023

On 25 March 2023, Britain’s electricity grid averaged 29.65 GW of grid demand, with renewables averaging 58.3% of tracked domestic generation and carbon intensity averaging 89 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.65 GW

Average grid demand for this UK day.

Peak demand 34.21 GW

Highest 15-minute grid demand period.

Avg carbon 89 gCO₂/kWh

Average carbon intensity where available.

Renewables 58.3 %

Average renewable share of tracked generation.

Average grid demandDemand
29.65 GWFull-day average from available snapshots
↓ −1.63 GW vs yesterday
Peak demand18:45
34.21 GWHighest 15-minute grid demand period
↓ −2.61 GW vs yesterday
Lowest demand05:15
24.17 GWLowest 15-minute grid demand period
↑ +1.28 GW vs yesterday
Domestic generationSupply
25.32 GWTracked UK generation sources only
↓ −1.40 GW vs yesterday
Average carbonCO₂
89 gCO₂/kWhCarbon intensity average
↑ +37 g vs yesterday
Renewable shareClean
58.3 %Wind, solar, hydro and biomass
↓ −12.8 pts vs yesterday
Clean share+ Nuclear
75.4 %Renewables plus nuclear
↓ −11.9 pts vs yesterday
Net importsFlow
3.97 GWAverage imports minus exports
↓ −0.88 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 25 March 2023, Britain’s electricity grid averaged 29.65 GW of grid demand, with renewables averaging 58.3% of tracked domestic generation and carbon intensity averaging 89 gCO₂/kWh.

The highest demand period was 34.21 GW at 18:45, while the lowest carbon intensity period was 40 gCO₂/kWh at 09:30.

Key records for 25 March 2023

Highest wind16.52 GW06:30
Highest solar6.58 GW12:30
Highest gas12.74 GW18:30
Lowest carbon40 gCO₂/kWh09:30
Highest imports6.94 GW23:45
Highest exports2.53 GW04:00

Daily chart

Demand, generation and carbon intensity

25 March 2023

Generation mix

Wind, solar, gas and interconnector flow