Ireland's data centers now consume 23% of national electricity, rising despite grid moratorium

Ireland's data centers consumed 23% of the country's metered electricity in 2025, according to Ireland's Central Statistics Office (CSO). That figure is up from 20% in 2023 and just 5% in 2015, as reported by Hacker News.

The increase came despite an effective moratorium on most new data center grid connections in the Dublin area, Hacker News noted. The continued growth highlights the tension between the expansion of digital infrastructure and national energy resources.

"server farms gulped 23% of national power despite years of grid restrictions"

Tom's HardwareIreland’s data centers consumed nearly as much electricity as every home in the country combined in 2025 — server farms gulped 23% of national power despite years of grid restrictions

Tom's Hardware reported that data center electricity use in 2025 nearly matched the consumption of every Irish home combined, underscoring the strain on the country's grid.

"effective moratorium on most new datacenter grid connections in the Dublin area"

Even with the freeze on new connections, existing data centers pushed consumption higher by 10% relative to 2023 levels, according to the CSO data cited by both outlets.