Canceled

Millstone Nuclear Data Center Campus

Connecticut — Waterford , New London County
Mega-Project
$1.6B
Investment
300 MW
Power Capacity
2
Sponsors

Sponsors & Partners

Project Timeline

Announced
2023-02
Construction Start
2024-mid
Expected Completion
2025-mid

Current canonical record

Two data center buildings totaling 1.14 million sq ft and 428,000 sq ft respectively. Occupies less than 5% of Millstone's 526-acre site.

A 2026 Governing/Middletown Press report states that the 1.5-million-square-foot hyperscale proposal connected to Millstone was scrubbed, and quotes Governor Lamont saying Connecticut had extended the Millstone nuclear agreement and slowed new data centers unless they add generation. Status updated from planned to canceled/scrubbed. Investment and capacity retained from existing canonical estimate.

Record provenance

This page is generated from the reviewed project database snapshot. The record was last reviewed on 2026-06-15. Blank fields mean the value was not publicly disclosed or could not be reconciled safely; they do not mean zero.