Ireland Data Centers Reach 23 Percent of National Electricity Use in 2025

Consumption climbed 360 percent over the decade to 7,663 GWh as the grid operator replaced an earlier connection freeze with stricter rules for new facilities.

Ireland's data centers drew 7,663 GWh last year, equal to 23 percent of the country's total electricity consumption. The Central Statistics Office placed the figure after a decade in which data-center demand rose 360 percent from its 2015 level of 5 percent of national supply. Year-over-year growth from 2024 to 2025 ran at 10 percent even though a 2021 moratorium on new grid connections remained in force for much of the period.

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