The UK’s wind farms generated more power than its nuclear power stations on Tuesday, the National Grid says.
The energy network operator said it was caused by a combination of high winds and faults in nuclear plants.
Wind farms are causing controversy in rural areas and the government is choking off planning permission for new sites.
But for a 24-hour period yesterday, spinning blades produced more energy than splitting atoms.
Wind made up 14.2% of all generation and nuclear offered 13.2%.
It follows another milestone on Saturday, when wind generated a record amount of power – 6,372 MW, according to National Grid.
This formed nearly 20% of the the UK’s electricity, albeit at a time at the weekend when demand is relatively low.