Average grid demand for this UK day.
On 20 March 2025, Britain’s electricity grid averaged 33.49 GW of grid demand, with renewables averaging 35.3% of tracked domestic generation and carbon intensity averaging 182 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 20 March 2025, Britain’s electricity grid averaged 33.49 GW of grid demand, with renewables averaging 35.3% of tracked domestic generation and carbon intensity averaging 182 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.
Daily insight
On 20 March 2025, Britain’s electricity grid averaged 33.49 GW of grid demand, with renewables averaging 35.3% of tracked domestic generation and carbon intensity averaging 182 gCO₂/kWh.
The highest demand period was 40.01 GW at 18:30, while the lowest carbon intensity period was 68 gCO₂/kWh at 23:30.
Daily chart
Generation mix