Average grid demand for this UK day.
On 9 September 2025, Britain’s electricity grid averaged 31.57 GW of grid demand, with renewables averaging 48.7% of tracked domestic generation and carbon intensity averaging 142 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 9 September 2025, Britain’s electricity grid averaged 31.57 GW of grid demand, with renewables averaging 48.7% of tracked domestic generation and carbon intensity averaging 142 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.
Daily insight
On 9 September 2025, Britain’s electricity grid averaged 31.57 GW of grid demand, with renewables averaging 48.7% of tracked domestic generation and carbon intensity averaging 142 gCO₂/kWh.
The highest demand period was 37.11 GW at 12:00, while the lowest carbon intensity period was 61 gCO₂/kWh at 23:30.
Daily chart
Generation mix