From the article:

Data centres accounted for almost a quarter of the electricity consumed in Ireland last year, up from 5 per cent in 2015, the Central Statistics Office (CSO) said on Tuesday, amid continuing public debate around the strain the sector is putting on Irish energy infrastructure.

[...]

Last December, the State moved to lift an effective moratorium on new data centre connections to the electricity grid, which had been in place since 2021.

The Commission for the Regulation of Utilities (CRU) said new data centres can be built if they meet at least 80 per cent of their energy demand annually through renewable sources of power generation.

[...]

Separate CSO figures published on Tuesday reveal that total electricity consumption increased by 3.4 per cent, with large energy users – including data centres – using 9 per cent more energy in 2025 than in 2024.

Household electricity usage increased by just 1 per cent, and accounted for 28 per cent of the total. Commercial and industrial customers, meanwhile, accounted for 72 per cent.