Ampervia CapitalBy Razvan Toma · Founder & CEO, Ampervia · Last checked 2026-10-12 · Sources linked below
Quick answer
Ireland’s energy regulator (CRU) decided in December 2025 to tier data centre connections by maximum import capacity. Below 1 MVA a site is exempt; from 1 to 10 MVA it must provide an autoproducer unit covering 100% of its MIC; and sites at or above 1 MVA must show a credible plan to meet at least 80% of annual demand from new Irish renewable generation within six years. Sources (2)
Mason Hayes & CurranMason Hayes & Curran — new data centre connection rules↗
Transatlantic LawTransatlantic Law — clarity for Ireland’s data centre sector↗
Key facts
- Decision published 12 December 2025; initial proposals due 31 March 2026 (Transatlantic Law).
- De minimis: 1 MVA. Tier 2: 1–10 MVA.
- 1–10 MVA: autoproducer unit able to meet 100% of MIC (Mason Hayes & Curran).
- ≥1 MVA: a credible plan to meet at least 80% of annual demand through new Irish renewable generation, within a six-year glide path (Mason Hayes & Curran).
Sources
- Mason Hayes & Curran — new data centre connection rules
- Transatlantic Law — clarity for Ireland’s data centre sector
Terms on this page: MIC · MVA · Autoproducer unit · Behind-the-meter power