Fact check · claim about Irish data centres

misleading

"Data centres will cause blackouts."

Verdict: misleading. There have been no supply-shortage blackouts in Ireland; EirGrid's amber 'system alerts' (eight in 2022 by late August) are warnings, not power cuts. The risk is real, though: new Dublin connections were effectively frozen from November 2021, and EirGrid warned in February 2026 that 2026–28 is outside its reliability standard (EirGrid figures via Irish Examiner, Aug 2022).

Checked against data built 10 October 2026 · how we check claims · corrections

The full explanation

There have been no supply-shortage blackouts; EirGrid issued amber 'system alerts' (1 in 2017, 0, 0, 3, 6, then 8 in 2022), which are warnings, not power cuts. The risk is real enough that new Dublin connections were effectively frozen from Nov 2021, and EirGrid warned in Feb 2026 that 2026-28 is outside its reliability standard.

Sources

FigureValueSourceDate
EirGrid system alerts by year. An alert is a warning, not a power cut; no system emergency in 2023/24.2017: 1 · 2018: 0 · 2019: 0 · 2020: 3 · 2021: 6 · 2022_to_28_Aug: 8 · winter_2023_24: 1 · winter_2024_25: 2Irish Examiner 28 Aug 2022 (2017-22); EirGrid Winter Outlook releases (2023/24, 2024/25)2022-08-28 / 2024-10-07 / 2025-10

Also: research/policy-history.md