RENNES, France: Europe’s record-breaking heatwave left around 68,000 households without electricity in western France on Wednesday, the authorities said, in the country’s first major power outage of the latest bout of extreme weather. The outage, which involved a transformer on the electricity grid, was related to extreme temperatures and did not injure anyone, the prefecture in the coastal department of Finistere said in a statement.

A severe and sustained heatwave across Europe has triggered widespread deaths, shattered temperature records, and disrupted transport, work, and public...

France struggles with extreme heat and power grid challenges as temperature records also smashed in parts of UK, Spain.