Average grid demand for this UK day.
On 21 January 2025, Britain’s electricity grid averaged 39.20 GW of grid demand, with renewables averaging 22.2% of tracked domestic generation and carbon intensity averaging 258 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.
Average grid demand for this UK day.
Highest 15-minute grid demand period.
Average carbon intensity where available.
Average renewable share of tracked generation.
Live Grid Data UK
On 21 January 2025, Britain’s electricity grid averaged 39.20 GW of grid demand, with renewables averaging 22.2% of tracked domestic generation and carbon intensity averaging 258 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.
Daily insight
On 21 January 2025, Britain’s electricity grid averaged 39.20 GW of grid demand, with renewables averaging 22.2% of tracked domestic generation and carbon intensity averaging 258 gCO₂/kWh.
The highest demand period was 45.46 GW at 17:30, while the lowest carbon intensity period was 238 gCO₂/kWh at 11:30.
Daily chart
Generation mix