“Offline [nuclear] reactors could lead to a ‘tense situation’ for energy supply in France, in the event of a cold snap this winter.
The situation is likely to be exacerbated by damage during Storm Angus to the main cable that carries electricity back and forth between the UK and France. It is believed a boat dropping anchor during the storm may have been responsible but National Grid is investigating the cause and working to repair the Interconnexion France-Angleterre, which is buried in the seabed and heavily armoured.”

‘Brexit means Brexit’ means severing all connections to the continent.