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The Guardian - US
The Guardian - US
Technology
Oliver Milman in New York

Bitcoin miners revived a dying coal plant – then CO2 emissions soared

The Hardin coal plant in southern Montana was on the brink of closing when Marathon, a bitcoin ‘mining’ company bought it, and it roared back to life.
The Hardin coal plant in southern Montana was on the brink of closing when a bitcoin ‘mining’ company bought it, and it roared back to life. Photograph: Courtesy of Anne Hedges

Environmentalists in Montana called it the “death watch”. Following years of financial losses one of the handful of remaining coal-fired power plants in the state appeared doomed, its likely fate offering a small but noteworthy victory in the effort to avoid disastrous climate change. But then a bitcoin mining company stepped in to resurrect it.

The Hardin generating station, a 115-megawatt coal plant located a dozen miles from the historic site of the famous battle of Little Big Horn in southern Montana, was slated for closure in 2018 due to a lack of customers only to somehow limp on, operating on just 46 days in 2020. “We were just waiting for this thing to die,” said Anne Hedges, co-director of the Montana Environmental Information Center. “They were struggling and looking to close. It was on the brink. And then this cryptocurrency company came along.”

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