2025 GB Electricity Market Summary

Key insights include:

GB fuel mix:

• Renewables: 14.52GW (1.03GW increase)

• Nuclear: 3.9GW (4GW decrease)

• Coal: 0 GW for the first time as all coal generation is decommissioned

• Gas: 8.83GW (0.54GW increase)

Power imports:

• Average hourly power imports: ~3.3GW (~0.5GW decrease)

• Most power imports sourced from France (~2.5GW) and Norway (~1.0GW)

New record for wind:

• Average hourly wind power generation hits 9.82GW, nearly a three-fold increase in 10 years

Average wholesale price changes:

• Early-year spikes were enough to lift the annual average gas price to around GBP 30/MWh, up slightly from GBP 28.63/MWh in 2024.

• Average wholesale electricity prices rose to GBP 80.63/MWh, over GBP 8/MWh higher than in 2024, with 10 more negative-price hours year-on-year.

Get the full picture, download your copy of the 2025 GB Annual Report now.