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Daily UK grid report
UK Electricity Grid Daily Report — 21 April 2024

On 21 April 2024, Britain’s electricity grid averaged 28.96 GW of grid demand, with renewables averaging 51.0% of tracked domestic generation and carbon intensity averaging 103 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 28.96 GW

Average grid demand for this UK day.

Peak demand 33.97 GW

Highest 15-minute grid demand period.

Avg carbon 103 gCO₂/kWh

Average carbon intensity where available.

Renewables 51.0 %

Average renewable share of tracked generation.

Average grid demandDemand
28.96 GWFull-day average from available snapshots
↓ −0.59 GW vs yesterday
Peak demand17:45
33.97 GWHighest 15-minute grid demand period
↓ −0.25 GW vs yesterday
Lowest demand04:45
22.72 GWLowest 15-minute grid demand period
↓ −1.29 GW vs yesterday
Domestic generationSupply
22.93 GWTracked UK generation sources only
↓ −0.26 GW vs yesterday
Average carbonCO₂
103 gCO₂/kWhCarbon intensity average
↑ +20 g vs yesterday
Renewable shareClean
51.0 %Wind, solar, hydro and biomass
↓ −6.3 pts vs yesterday
Clean share+ Nuclear
74.9 %Renewables plus nuclear
↓ −5.9 pts vs yesterday
Net importsFlow
5.32 GWAverage imports minus exports
↓ −0.11 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 21 April 2024, Britain’s electricity grid averaged 28.96 GW of grid demand, with renewables averaging 51.0% of tracked domestic generation and carbon intensity averaging 103 gCO₂/kWh.

The highest demand period was 33.97 GW at 17:45, while the lowest carbon intensity period was 69 gCO₂/kWh at 10:00.

Key records for 21 April 2024

Highest wind7.35 GW06:30
Highest solar7.82 GW12:00
Highest gas9.42 GW19:00
Lowest carbon69 gCO₂/kWh10:00
Highest imports7.20 GW09:15
Highest exports1.59 GW23:15

Daily chart

Demand, generation and carbon intensity

21 April 2024

Generation mix

Wind, solar, gas and interconnector flow