Storms, cyberattacks and data centres could wreak havoc on electricity supply

In the case of a blackout from a cyberattack or an 'insider attack', this could cause disruption for up to two days followed by a 'lengthy restoration period', CRU said.

Ireland could face a number of electricity “crises” in the coming years, with storms, tech failures, and a surge in demand from data centres all having the potential to wreak havoc.

Furthermore, a cyberattack to entities connected to the grid could have a “disastrous” impact, with “wide-scale blackouts”, although such a possibility is rated “unlikely” by the energy regulator.