National grid operator Eirgrid issued a system alert, confirming that the buffer between electricity supply and demand was lower “than optimum”, but stressing that there was no loss of power to customers.
However, sources acknowledge that where large energy users do not have backup this will present extra “political” difficulties, as many are significant employers. The company added that it was working with generators to maximise power plant availability and to optimise its operation of the grid. Eirgrid figures show that up to one in four Irish power plants were unexpectedly shut down at any one time during 2021.