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Data center project · St. Lawrence County, New York

Arsenal Data Site

Proposed · Arconic's three-step grid request for up to 933 MW of AI data center load near Massena.

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Status
Proposed · as of Sept. 30, 2026
Location
Arconic Massena area · St. Lawrence County
Status note
Grid interconnection request only; no local application found.
Power
933 MW
Developer and team
Arconic Corporation
Evidence
Primary public records
Size class
50 MW or more (tracker scope)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.

Updates, newest first

  1. March 7, 2025 Arconic filed three AI data center load requests with NYISO (233, 233 and 467 MW), all now at the system-impact-study-approved stage. (New York Independent System Operator (NYISO), Sept. 30, 2026)

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