CRU decision of 12 December 2025: 100% de-rated onsite or nearby generation, 80% new renewable power, grid operators weigh whether the location is constrained.

What this evidence bears on

• Supports: Ireland now ties new data center connections to location and to their own power. Since December 2025, new sites must bring dispatchable generation or storage covering their full connected load and match at least 80% of annual demand with new Irish renewable power.

  • A reason for “Leave it to grid operators and national rules: steer data centers to places with spare clean power instead of city by city decisions.”