Some bitcoin miners, including TeraWulf and Compass Mining, are partnering with nuclear power plant owners amid criticism from environmentalists
Some cryptocurrency miners are striking deals with operators of struggling nuclear plants, which are carbon-free and have excess power capacity to spare
Context & Ripple Effects
Bitcoin's siting story has been an arms race for cheap stranded power since miners like Bitmain and BTC.Top relocated from China to the US, Canada and Iceland in 2018. The most visible US experiment went the wrong way environmentally: a New York fossil plant restarted its own behind-the-meter mining operation in 2020 (roughly 7K miners generating about 5.5 BTC a day), prompting state lawmakers to weigh a three-year moratorium on crypto mining.
Against that backdrop, TeraWulf and Compass Mining partnering with struggling nuclear plant owners is a reputational pivot — pairing excess carbon-free capacity with the industry's voluntary Crypto Climate Accord framework to answer environmentalist criticism that the fossil-plant restart crystallized.
First-order effects
- Struggling nuclear operators gain a new anchor tenant for otherwise unsold capacity, while TeraWulf and Compass Mining secure long-lived baseload power without the emissions exposure that drew fire at the New York fossil site.
Second-order effects
- The New York moratorium debate sharpens: lawmakers can contrast miners at fossil plants with those buying nuclear output, making siting choices — not mining itself — the regulatory target.
- Rival miners face pressure to match the carbon-free sourcing playbook or cede institutional capital and public legitimacy to those who have.
Third-order effects
- If nuclear partnerships hold up economically, bitcoin mining consolidates around plants with surplus firm power, turning miners from opportunistic energy arbitrageurs into long-term infrastructure co-tenants — and making grid regulators, not crypto regulators, the decisive gatekeepers.
The trend: Bitcoin mining is shifting from chasing the cheapest power anywhere to contracting specifically with carbon-free generators, with each siting decision increasingly shaped by political and ESG scrutiny rather than electricity price alone.