Status: Under Planning Review / Environmental Permitting Phase | Location: Former Alcoa East Industrial Site, St. Lawrence County
The Massena Alcoa East Hyperscale AI Campus stands as one of the most ambitious industrial brownfield reclamation projects in North America, converting a historic smelting site into a massive 635-megawatt (MW) digital infrastructure hub. Formally advanced into local planning reviews in June 2026, this multi-structure campus is specifically designed to meet the explosive computing demands of next-generation artificial intelligence (AI) training and heavy inference workloads. By positioning the campus at the former Alcoa East industrial complex in St. Lawrence County, the development capitalizes on northern New York’s abundant, low-cost zero-carbon hydroelectric and wind power resources, aligning the campus with strict modern corporate sustainability mandates.
The architectural layout spans three ultra-large-scale structures engineered specifically for high-density GPU cluster deployment. The primary footprint comprises three specialized buildings ranging from 400,000 to 535,000 square feet, offering more than 1.4 million square feet of specialized data hall space. To accommodate power densities exceeding 40kW to 100kW per rack, the engineering design bypasses traditional air-cooling limits in favor of a specialized hybrid direct-to-chip liquid cooling infrastructure. This loop utilizes the region’s naturally cool ambient temperatures to minimize energy consumption, targeting a highly efficient Power Usage Effectiveness (PUE) of less than 1.12.
| Field | Value |
|---|---|
| Project Name | Massena: 635MW Alcoa East Green Hyperscale Data Center New York |
| Location | Former Alcoa East Industrial Site, St. Lawrence County |
| Status | Under Planning Review / Environmental Permitting Phase |
| Project Type | Brownfield Industrial Reclamation / Mega-Scale AI Inference & Training Campus |
| Commissioning | 🔒 Subscriber Intelligence |
| Total IT Load | 🔒 Subscriber Intelligence |
| Total Capacity | 🔒 Subscriber Intelligence |
| Tier Level | 🔒 Subscriber Intelligence |
| Header | Details |
|---|---|
| City Name | New York |
| Population | Approximately 8.5 million |
| Urban Agglomeration | Approximately 20.1 million |
| Economic Profile | 🔒 Detailed city intelligence available to subscribers |
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