Power generator for government-linked data center eyes county

More than 80 people turned out for a March 4 data center event in Helena hosted by the Montana Environmental Information Center and advocacy group Upper Missouri Waterkeeper. (Photo courtesy Upper Missouri Waterkeeper)

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NOTE: This story was updated with additional reporting on March 10, 2026.

The AI data center wave may be coming to your town soon. 

During a brief allowance period for presidential exceptions last March, Thunderhead Energy Solutions, a little-known energy generation firm, filed for Clean Air Act exemptions for a power plant to support a potential Jefferson County data center.

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