Around 32,000 homes, farms, schools and businesses are still without power today following Storm Éowyn.
Ten days on from the storm, the Government is being criticised for its lack of preparedness.
Hundreds of people still also remain without water and telecoms.
The ESB has said it has reconnected over 736,000 customers who lost power over the storm.
In a statement, it said skilled technicians from Austria, Finland, France, Great Britain, Germany, Netherlands and Norway are “on the ground” in the worst impacted areas.
“They are supporting over 2,500 local ESB Networks crews and partner contactors who have been bolstered by colleagues from the south and east of the country, as well as skilled retirees,” the statement read.
“In addition to the crews deployed, over 1,300 support staff are involved in overseeing damage assessment, emergency call management, logistics and network operations.
“ESB Networks’ customer contact centre has also doubled its resources to accommodate the unprecedented high volumes of calls, resulting in short call response times throughout the day and night for their customers.”
The ESB said some interruptions may occur to power when carrying out restorations work.
“In some instances, when carrying out restoration work on main lines, customers whose power has been reconnected should be aware that power may have to be disconnected again for very short periods of time to allow neighbours to be reconnected,” the statement read.
“These interruptions ensure that restoration work can safely take place on the system.”
While ESB crews are working on restoring power, the company urged the public to be mindful and stay safe.
“ESB Networks reminds the public to stay safe and stay clear of fallen electricity wires,” the statement said.
“If you come across fallen wires or damaged electricity network, never, ever touch or approach these as they are live and extremely dangerous.”
Report any damage to electricity infrastructure by calling 1800 372 999.
ESB Networks crews and partner contractors pictured on site near Dunmanway in West Cork. 25/01/2025 Picture: Michael O'Sullivan /OSM