NYDIG Massena Data Center Campus
Operating · NYDIG · 194 County Route 45, Massena, NY
NYDIG operates a digital currency mining data center in the former Alcoa smelter at 194 County Route 45, Massena, on a 1,375-acre site owned by Reynolds Metals Company. Power arrives at 115 kV from the NYPA Reynolds Substation, fed by the Moses-Saunders hydroelectric dam. An April 2026 application to the Massena Planning Board proposes a 635 MW data center campus of three buildings (160, 160 and 128 MW), a new 435 MW substation, and decommissioning of the existing mining facility.
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Overview
- Campus power
- 635 MW
- Campus Gross Power · Reported
- Status
- Operating
- Operating campus
- Site
- 1,375 acres
- Campus
- Compute profile
- Crypto Mining
- Cooling design
- Reported
- seasonal evaporative cooling
- Project scope
- The existing digital currency mining facility in the former Alcoa smelter will be decommissioned; three new data center buildings are proposed on about 865 acres.
Power and grid
| Capacity | Basis | Status | Scope | As of |
|---|---|---|---|---|
| 635 MW | Campus Gross Power | Reported | Campus | — |
| Total power capacity of the proposed data center campus in the April 2026 site plan application. | ||||
| 160 MW | Capacity basis unspecified | Reported | Building 1 | — |
| Proposed 160 MW data center facility on Lot 1; basis unspecified. | ||||
| 160 MW | Capacity basis unspecified | Reported | Building 2 | — |
| Proposed 160 MW data center facility on Lot 2; basis unspecified. | ||||
- Substation
- NYPA Reynolds Substation; on-site 172 MVA load substation to be replaced by a 115/34.5 kV 435 MW substation
- Interconnection voltage (kV)
Facility and development
- Site area (acres)
- 1,375
- Construction
- The existing digital currency mining facility in the former Alcoa smelter will be decommissioned; three new data center buildings are proposed on about 865 acres.
- Facility class
- Crypto Mining
- Cooling systems
- seasonal evaporative cooling
- Water source