Alcoa’s Idle Smelter Finds New Life as Bitcoin Mining Hub

Alcoa, a major player in the aluminum industry, is close to selling its long‑abandoned Massena East smelter in upstate New York. The plant, which stopped operating in 2014 because of high energy bills and tough global competition, sits along the St. Lawrence River and is ready for a new purpose.

The facility has built‑in power infrastructure—substations, transmission lines and a strong grid link—that makes it an ideal spot for data‑heavy operations. Bitcoin miners, in particular, love such sites because they can avoid the years of approval and construction needed to set up a similar power supply from scratch.

Massena East also receives hydropower from the New York Power Authority, offering a cheap and greener energy source. This is a major advantage for companies that need large amounts of electricity, such as those running cryptocurrency mining rigs or artificial‑intelligence servers.

The deal is part of a larger movement in the United States, where dormant industrial locations are being converted into digital infrastructure. Earlier this year, Century Aluminum sold its Hawesville smelter in Kentucky to TeraWulf for $200 million, and the site will become a high‑performance computing center instead of an aluminum plant.

NYDIG, a Bitcoin mining firm backed by Stone Ridge, is expanding its reach. It already owns a stake in Coinmint, which operates mining hardware on the same campus under a long‑term lease. In 2023, Crusoe Energy sold its Bitcoin mining business to NYDIG, further boosting the company’s footprint.

Because profit margins in traditional mining are shrinking, many miners are turning to new revenue streams like AI and cloud computing. Firms such as MARA Holdings, Hive, Hut 8, TeraWulf and Iren are either repurposing their facilities or moving entirely into AI‑focused infrastructure.