The provisional data saw a record amount of solar energy on Ireland's power system.

Almost 40 per cent of electricity was generated by renewables last month with May sunshine producing a record amount of solar energy

Contributing 40 per cent of the overall fuel mix in March, wind energy made up a significant proportion of renewable energy.

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The majority of renewable electricity generated last month came from windfarms, which accounted for just under 29 per cent of all electricity used in Ireland.

There was a new maximum peak of demand in Ireland of 5,544MW, followed by a new capacity energised onto the system: 300MW solar; 150MW wind; and 75MW batteries.