Wind power generated as much as 41.2% of Britain’s electricity in December, its highest monthly share ever, thanks to milder and windy weather, data from the UK’s National Grid ESO showed. In December, wind was the UK’s largest source of generation, accounting for 41.2% of electricity, followed by natural gas with a share of 25.8% of power generation—its lowest level since March 2020, when the system operator began publishing the monthly electricity statistics. The UK ended 2023 with the greenest…