On Wednesday night, the northwest of the nation was struck by gales and gusts as high as 210 km/h, with coastal areas being most severely affected.

Falling trees damaged power lines and pylons in the area, leaving about 1.2 million households and businesses without energy.

In the northwest of the nation, 89% of the homes and businesses damaged by Storm Ciarán now have electricity, according to French energy company Enedis.

Approximately 137,200 consumers, primarily in the Brittany and Normandy regions, are still without service as of right now.

Yesterday afternoon, the ESB personnel arrived in Cherbourg after sailing from Dublin Port on the Irish Ferries WB Yeats vessel.

Enedis has asked the ESB for help in repairing the damage.

ESB Networks responded to the plea by dispatching 48 network technicians and support personnel from various regions of the nation to assist their French counterparts.

A portion of the crews sailed to Cherbourg yesterday from Dublin Port; more are scheduled to depart over the next several days from Rosslare and Cork.

Their services are anticipated to be needed on the ground for around a week.