June 23, 2026

Prometheus Hyperscale wins approval for Wyoming campus

By:
Dallas Bond

Prometheus Hyperscale has won planning approval for its flagship data center campus near Evanston, after the Uinta County board of commissioners granted unanimous conditional use permit approval last week.

The Wyoming project is planned on a 506-acre site and is set to launch with 1.25GW of capacity, with the potential to grow to 5GW. Prometheus said construction is expected to begin within six months of final permitting, while the full 1.25GW campus is slated to be built in phases over 48 to 60 months.

"This unanimous approval reflects the strength of the project's fundamentals and the depth of community engagement we've built in Uinta County", said Trevor Neilson, president of Prometheus Hyperscale.

The approval follows a recommendation from Uinta County’s planning and zoning commission last month, when the project was backed during a heavily attended meeting.

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Prometheus, launched around 2020 and formally known as Wyoming Hyperscale Whitebox, was relaunched in September 2024. The company had originally planned a 120MW campus at the same site in 2020.

According to the company, the Evanston campus will run as a fully islanded microgrid, generating power on-site through natural gas engines and turbines. Prometheus said avoiding a connection to the public utility grid would eliminate "interconnection queue exposure and ratepayer impact as regulatory risk factors", according to the firm.

Beyond Evanston, Prometheus is also developing another Wyoming project: the 1.25GW Falls Ranch site near Casper, in partnership with Casper Carbon Capture. It is also working on a site in Dallas, Texas, in partnership with Engie.

The company has previously said it was targeting campuses in Pueblo and Fort Morgan, Colorado, and Phoenix and Tucson, Arizona, though the status of those projects is unclear. In-Q-Tel (IQT), a venture firm funded by the US Central Intelligence Agency (CIA), has invested in Prometheus.

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Keywords:
Prometheus Hyperscale,Wyoming data center,Evanston campus,microgrid,gigawatt data center
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