
Storm Arwen, described by the UK’s Met Office as “one of the most powerful and damaging winter storms of the last decade”, hit the east coast of Scotland and northern England in late November 2021. Wind gusts of over 90 mph and fallen trees caused widespread damage to energy infrastructure. More than one million homes lost power and some were still disconnected over a week later.
Arwen was followed by storms Dudley, Eunice and Franklin in February 2022. These storms had similarly devastating impacts on the UK’s power supply. During Storm Eunice, areas of southeastern England were left without water for five days as water treatment facilities had no power.