You Won't Believe What NYDIG Plans for Alcoa's Smelter: Is This the Future of Bitcoin Mining?

Key Takeaways:

• According to a recent report, Alcoa is in advanced talks to sell its Massena East smelter site to NYDIG, with a deal expected to close by mid-2026.
• The 435 MW New York facility already hosts ~54,000 bitcoin miners and NYDIG took a stake in Coinmint there in October 2024.
• NYDIG’s acquisition follows its March 2025 agreement to buy Crusoe Energy’s bitcoin mining business, adding over 270 MW of capacity.

The landscape of the cryptocurrency mining industry continues to evolve with significant moves from key players. Alcoa, the global leader in aluminum production, is reportedly in advanced negotiations to sell its Massena East smelter site to NYDIG, a prominent investment firm specializing in cryptocurrency. This deal, expected to close by mid-2026, signifies a shift not only for Alcoa but also for the future of bitcoin mining in the region.

Located along the St. Lawrence River in New York, the Massena East facility boasts a capacity of approximately 435 megawatts (MW). Since its transition to a bitcoin mining campus in 2018, the site has grown to host about 54,000 bitcoin miners. NYDIG, which has already invested in Coinmint—a mining operation at the site—will gain full control of this hydropower-connected campus with this acquisition. Alcoa CEO Bill Oplinger confirmed the negotiations in an interview with Bloomberg, stating that the company anticipates finalizing the transaction around mid-2026.

The Massena East facility is strategically positioned to draw power from the New York Power Authority via the Moses-Saunders hydroelectric dam, making it an appealing location for bitcoin miners. These facilities, originally constructed for aluminum smelting, were designed with high-voltage industrial loads in mind. This existing infrastructure facilitates a faster transition to mining operations, allowing NYDIG to sidestep the lengthy timelines associated with new grid interconnections.

Alcoa originally paused operations at the Massena East site in 2014, attributing the decision to high energy costs and intensified global competition. The property spans approximately 1,300 acres, complete with the electrical infrastructure necessary for industrial production. The sale of this site is part of Alcoa's broader strategy to divest around 10 dormant U.S. smelter sites, targeting developers in the data center and cryptocurrency sectors seeking extensive, pre-wired facilities.

NYDIG has been actively seeking to expand its bitcoin mining capacity. In March 2025, the firm reached an agreement to acquire Crusoe Energy’s bitcoin mining operations, which added more than 270 MW of capacity. This acquisition, combined with the Massena East site, positions NYDIG as a formidable player in the North American bitcoin mining landscape, controlling significant operational capacity across multiple sites.

The existing mining operation at Massena East currently employs approximately 85 full-time workers in Massena and Plattsburgh. With NYDIG at the helm, further expansion is expected, prompting local regulatory adjustments to accommodate cryptocurrency and data mining operations. The Town of Massena, in anticipation of this growth, has already updated its regulations to support these industries.

This development follows a similar trend seen in the industry, notably with Century Aluminum, which recently sold its Hawesville, Kentucky smelter for around $200 million to Terawulf for digital infrastructure use. The strategic repurposing of former aluminum smelters for bitcoin mining not only minimizes the need for new power plant construction but also attracts interest from operators focused on environmentally sustainable, carbon-free digital infrastructure.

As Alcoa reported strong first-quarter 2026 earnings, netting $425 million in net income and $595 million in adjusted EBITDA, the backdrop for this transaction is promising. These figures suggest that the aluminum market remains robust, providing a solid financial footing for Alcoa as it pivots toward divesting these smelter sites.

With the cryptocurrency mining sector continuing its rapid growth and evolution, the anticipated sale of the Massena East facility underscores the increasing intersection between traditional industries and the digital currency landscape. NYDIG's acquisition will likely set a precedent for future partnerships and investments in this burgeoning field, as companies and municipalities alike seek to capitalize on the opportunities presented by the expanding market for bitcoin mining.