Average grid demand for this UK day.
On 16 December 2025, Britain’s electricity grid averaged 38.06 GW of grid demand, with renewables averaging 35.3% of tracked domestic generation and carbon intensity averaging 200 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 16 December 2025, Britain’s electricity grid averaged 38.06 GW of grid demand, with renewables averaging 35.3% of tracked domestic generation and carbon intensity averaging 200 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.
Daily insight
On 16 December 2025, Britain’s electricity grid averaged 38.06 GW of grid demand, with renewables averaging 35.3% of tracked domestic generation and carbon intensity averaging 200 gCO₂/kWh.
The highest demand period was 45.11 GW at 16:30, while the lowest carbon intensity period was 140 gCO₂/kWh at 00:00.
Daily chart
Generation mix