The UK generated a record of over 16GW of electricity from wind power on 8 December, according to RenewableUK citing National Grid data.
RenewableUK said that on Sunday evening wind generated up to 16.162GW, up from the previous record set on 8 February of 15.32GW.
Overall, the National Grid data shows wind provided 43.7% of the country's electricity on 8 December, more than double the amount that nuclear produced at 20.5%.
Gas supplied 12.8%, biomass 7.9%, imports 7.4%, coal 3.1%, hydro 1.7%, solar 1.3%, storage 1.1% and other sources 0.5%, R-UK said.
R-UK director of strategic communications Luke Clark said: “This new British clean energy record is a great early Christmas present, and shows just how important wind is in an energy system that’s changing rapidly.
“On a dark cold Sunday when we need it most, wind was providing more than 40% of our power, far more than any other source of electricity.
“Wind energy is at the heart of our modern power system, enabling us to take practical action against dangerous climate change.”