Data Center Census Near me

Prometheus Hyperscale Evanston Campus

Evanston, Uinta County, WY

Also known as Atlas Industrial Park

ApprovedUinta County approved the data center conditional use permit in June 2026 and a permit for the power facility in September 2026
  1. Rumored
  2. Proposed
  3. Approved
  4. Under construction
  5. Operating

Prometheus Hyperscale plans a 1.25-gigawatt data center campus on 506 acres near Evanston, Wyoming, with power generated on-site from natural gas engines and turbines as an islanded microgrid. The Uinta County Commission unanimously approved the conditional use permit with 15 conditions in June 2026, and approved a conditional use permit for the project's independent power production facility in September 2026.

Site size
506 acres
Permanent jobs (promised)
200
long-term jobs, per developer presentation

Key facts

Size & schedule

Planned capacity1.25 GW [1]
designed for 1.25 GW initial capacity; company describes a development path to 5 GW
Source excerpt
“The vote represents a significant permitting milestone for the 506-acre site, which is designed for 1.25 GW of initial capacity with a development path to 5 GW.”
Site size506 acres [2]
Source excerpt
“The company says it's located on 506 acres that founder Trenton Thornock's family has ranched for six generations.”
Permanent jobs (promised)200 [5]
long-term jobs, per developer presentation
Source excerpt
“200 long-term jobs for facility technicians, network and data center operations staff”
Construction jobs3,800 [5]
temporary construction jobs, per developer presentation
Source excerpt
“This project will create 3,800 temporary construction jobs”
Construction jobs250 [8]
up to 250 power facility construction jobs
Source excerpt
“Up to 250 power facility construction jobs — electricians, iron workers, pipe fitters”
Target completionConstruction anticipated to begin within six months of final permitting; full 1.25 GW expected to be built in phases over 48 to 60 months (per company) [1]
Source excerpt
“Construction is anticipated to begin within six months of final permitting, with the full 1.25 GW campus expected to be built out in phases over 48 to 60 months.”

Power

Grid operatornone (off-grid) [1]
company says the campus will not connect to the public utility grid
Source excerpt
“The Evanston campus will operate as a fully islanded microgrid, generating power on-site through high-efficiency natural gas engines and turbines with no draw on the public utility grid”
Power supplynatural gas (mostly); founder wants to add nuclear eventually [2]
Source excerpt
“But he said most of its power will come from natural gas, a readily available and relatively clean fossil fuel. Thornock eventually wants to tap nuclear energy too.”
On-site generation typenatural gas engines and turbines operated as a fully islanded microgrid [3]
Source excerpt
“Prometheus said the Evanston campus will operate as a fully islanded microgrid, generating power on-site through natural gas engines and turbines.”

Water

Water sourceprivate on-site well [2]
Source excerpt
“A private, on-site well will supply the data center's plumbing, but Prometheus says it will cool the servers with a water-glycol mixture that lasts six years before it must be changed out.”
Coolingwater-glycol mixture [2]
company says the mixture lasts six years before it must be changed out
Source excerpt
“A private, on-site well will supply the data center's plumbing, but Prometheus says it will cool the servers with a water-glycol mixture that lasts six years before it must be changed out.”

Local decisions & site

Deciding voteUinta County Commission unanimously approved the conditional use permit with 15 conditions [4]
Source excerpt
“Ultimately, the commission unanimously approved the conditional use permit with 15 conditions that the developer must meet.”
ZoningZone change from agricultural to industrial use for the Atlas Industrial Park Subdivision [7]
Source excerpt
“In June, the Uinta County Board of County Commissioners approved a zone change from agricultural to industrial use for the Atlas Industrial Park Subdivision.”

Figures are as stated by the cited source. Where sources disagree, each figure is shown.

Timeline

  1. The company initially planned a 120 MW campus on the site [3]

  2. Uinta County planning commission unanimously recommends zoning and conditional use permit approvals [5]

  3. An industrial subdivision rezone for the project is approved at a meeting in Lyman [4]

  4. Uinta County Board of Commissioners unanimously approves the data center conditional use permit [1]

  5. Uinta County commissioners approve a conditional use permit for the project's independent power production facility [8]

Issues raised

  • Permit conditions include beginning construction within five years, a 60 dBA noise limit at the project boundary, and public reporting of annual on-site well water consumption for 10 years [4]
  • The developer says ongoing water use, mainly for bathrooms and offices, will be about 15 homes' worth and that no water will be drawn from Uinta County's system [6]
  • Some residents presented petitions opposing the permit, citing environmental and financial concerns; others spoke in support [4][6]
  • The power facility is to be phased in five stages to match the data center's power needs [8]

Sources

  1. Prometheus Hyperscale Secures Unanimous Conditional Use Permit Approval from Uinta County Commissioners
    Prometheus Hyperscale · Jun 17, 2026 · company
  2. 1.25GW data center approved on ranchland near Evanston, Wyoming
    KPCW · Jun 19, 2026 · news
  3. Prometheus Hyperscale secures planning approval for gigawatt data center campus in Wyoming
    DatacenterDynamics · Jun 22, 2026 · news
  4. Uinta County data center moves forward
    WyoFile (Uinta County Herald) · Jun 18, 2026 · news
  5. Uinta County Planners Give Unanimous OK To 1.25-Gigawatt Prometheus Data Center
    Cowboy State Daily · May 28, 2026 · news
  6. Uinta County OKs Huge Data Center, Some Fear They'll Get Left 'Holding The Bag'
    Cowboy State Daily · Jun 17, 2026 · news
  7. Pitching 940-acre data center, Prometheus Hyperscale asks Natrona County to bypass state review
    WyoFile (Oil City News) · Sep 2, 2026 · news
  8. Uinta County approves permit for incoming data center's power grid
    Wyoming News (via NewsBreak) · Sep 17, 2026 · news

Cite this page

Last updated Sep 22, 2026. Figures may change as records are updated — include the date you retrieved them.

APAData Center Census. (2026). Prometheus Hyperscale Evanston Campus. Retrieved from https://datacentercensus.com/dc/prometheus-hyperscale-evanston-wy
MLA“Prometheus Hyperscale Evanston Campus.” Data Center Census, Sep 22, 2026, https://datacentercensus.com/dc/prometheus-hyperscale-evanston-wy.
Linkhttps://datacentercensus.com/dc/prometheus-hyperscale-evanston-wy

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