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Daily UK grid report
UK Electricity Grid Daily Report — 16 March 2025

On 16 March 2025, Britain’s electricity grid averaged 32.98 GW of grid demand, with renewables averaging 41.3% of tracked domestic generation and carbon intensity averaging 161 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.98 GW

Average grid demand for this UK day.

Peak demand 40.17 GW

Highest 15-minute grid demand period.

Avg carbon 161 gCO₂/kWh

Average carbon intensity where available.

Renewables 41.3 %

Average renewable share of tracked generation.

Average grid demandDemand
32.98 GWFull-day average from available snapshots
↓ −0.49 GW vs yesterday
Peak demand18:00
40.17 GWHighest 15-minute grid demand period
↑ +1.18 GW vs yesterday
Lowest demand05:15
26.53 GWLowest 15-minute grid demand period
↓ −0.66 GW vs yesterday
Domestic generationSupply
25.16 GWTracked UK generation sources only
↓ −0.67 GW vs yesterday
Average carbonCO₂
161 gCO₂/kWhCarbon intensity average
↓ −4 g vs yesterday
Renewable shareClean
41.3 %Wind, solar, hydro and biomass
↑ +0.4 pts vs yesterday
Clean share+ Nuclear
56.2 %Renewables plus nuclear
↑ +0.9 pts vs yesterday
Net importsFlow
6.57 GWAverage imports minus exports
↑ +0.17 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 16 March 2025, Britain’s electricity grid averaged 32.98 GW of grid demand, with renewables averaging 41.3% of tracked domestic generation and carbon intensity averaging 161 gCO₂/kWh.

The highest demand period was 40.17 GW at 18:00, while the lowest carbon intensity period was 130 gCO₂/kWh at 10:30.

Key records for 16 March 2025

Highest wind7.59 GW21:00
Highest solar7.76 GW10:30
Highest gas15.95 GW18:00
Lowest carbon130 gCO₂/kWh10:30
Highest imports8.43 GW14:00
Highest exports1.50 GW19:15

Daily chart

Demand, generation and carbon intensity

16 March 2025

Generation mix

Wind, solar, gas and interconnector flow