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Data center campus · South of Interstate 80 at Exit 13, east of Evanston (T15N R119W, Section 13, 6th P.M.), Uinta County, Wyoming

Prometheus Hyperscale Evanston Campus

Approved as of Sept. 17, 2026

Prometheus Hyperscale's flagship off-grid, gas-powered data center campus of about 506 acres east of Evanston, approved by Uinta County in 2026. Also known as: Prometheus Wyoming I, Wyoming Hyperscale (former company name).

Cite← Wyoming data centers
Albany CountyBig Horn CountyCampbell CountyCarbon CountyConverse CountyCrook CountyFremont CountyGoshen CountyHot Springs CountyJohnson CountyLaramie CountyLincoln CountyNatrona CountyNiobrara CountyPark CountyPlatte CountySheridan CountySublette CountySweetwater CountyTeton CountyUinta CountyWashakie CountyWeston CountyPrometheus Hyperscale Evanston Campus · Approved · 1,250 MW
Power1,250MW reported · stated
Site506acres

Who is behind it

ProjectPrometheus Hyperscale Evanston CampusAlso: Prometheus Wyoming I, Wyoming Hyperscale (former company name)
Developer and teamPrometheus Hyperscale (through Prometheus Wyoming I LLC (CUP applicant))
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. The News Letter Journal reported that Uinta County commissioners approved the permit for the campus's power facility that week. (News Letter Journal (paywalled; headline and lead only), Sept. 17, 2026)

  2. The company said the county planning commission had unanimously recommended zoning and conditional use permits for the campus's on-site power generation site. (Prometheus Hyperscale, Aug. 27, 2026)

  3. A Third District Court judge dismissed a petition for judicial review of the data center permit that area residents had filed July 16, finding the petitioners had not shown they had standing to challenge it. (Wyoming Tribune Eagle (Uinta County Herald, via Wyoming News Exchange), Aug. 21, 2026)

  4. Commissioners unanimously approved a conditional use permit for Target Hospitality's workforce housing site on county land next to Bear River State Park, tied to the data center's construction workforce. (Wyoming Tribune Eagle (Uinta County Herald via Wyoming News Exchange), July 23, 2026)

  5. At a meeting at the Lyman Town Hall, county commissioners approved an industrial subdivision rezone and unanimously approved CUP 26-01 for a data center, with 15 conditions covering a five-year construction deadline, water-use reporting, a heat-dispersal study, a 60 dBA noise limit at the boundary, DarkSky lighting, road upkeep and reimbursement of emergency services. (Uinta County Board of County Commissioners (copy posted by WyoFile), June 16, 2026; WyoFile (Uinta County Herald), June 18, 2026; Prometheus Hyperscale, June 17, 2026; Cowboy State Daily, June 17, 2026; KPCW, June 19, 2026; Data Center Dynamics, June 22, 2026)

  6. The Uinta County Planning and Zoning Commission held a public hearing and unanimously recommended the zoning change and conditional use permit, with eight recommended conditions. (Uinta County Board of County Commissioners (copy posted by WyoFile), June 16, 2026; Cowboy State Daily, May 28, 2026)

  7. Uinta County commissioners approved letters of support, requested by the company, addressed to Meta and Microsoft executives; no tenant was named. (Cowboy State Daily, Feb. 14, 2026; TownLift, June 22, 2026)

  8. Under its earlier name, Wyoming Hyperscale signed a nonbinding letter of intent with Oklo for 100 MW from Oklo's Aurora powerhouses under a 20-year power purchase agreement; the site was then described as 58 acres on Aspen Mountain southeast of Evanston. (American Nuclear Society, Nuclear Newswire, May 29, 2024)

Conflicts and open questions

  • Coordinates are approximate, placed south of I-80 near Exit 13, about 12 miles east of Evanston (KPCW), within T15N R119W Section 13 as given in the CUP order; Cowboy State Daily reported Range 118 West. The parcel was not mapped.
  • Acreage: 506 (company, KPCW, DCD), 506.2 (Cowboy State Daily), about 500 (planners story); the Oil City News story republished by WyoFile gives 640 acres for the Evanston campus.
  • The CUP order names G & C Holdings LLC as landowner and makes the permit subject to a lease between G&C Holdings LLC and Prometheus Wyoming I LLC. It records the vote as a majority vote; the company, WyoFile and KPCW report it as unanimous. The order recites a hearing in the Evanston commission chambers, while WyoFile and Cowboy State Daily report the June 16 meeting was held in Lyman.
  • The company's earlier name: Wyoming Hyperscale (ANS, 2024); DCD says Wyoming Hyperscale Whitebox was relaunched as Prometheus Hyperscale in September 2024.
  • The 2024 Oklo letter of intent placed Wyoming Hyperscale's site on 58 acres at Aspen Mountain southeast of Evanston; whether that is the same parcel as the CUP site is not confirmed. Treated as the same campus because it is the same developer near Evanston. No Oklo power appears in the 2026 permits.
  • Phasing: the company and Cowboy State Daily describe buildout over 48 to 60 months, in five phases per Cowboy State Daily; no building count appears in any record opened.
  • Jobs claims vary by source: about 3,800 construction and 200 permanent (company, May-June 2026); 1,500-2,000 construction and 300-400 permanent (county economic development director, Feb. 2026).
  • Oil City News reported the county split the project into two permits, one for the data halls and one for power generation. The power facility permit (Sept. 2026) was confirmed only from a paywalled headline and lead; its number, conditions and the plant's MW are not confirmed.

The full record

Status note
Uinta County granted the data center conditional use permit (CUP 26-01) on June 16, 2026, and a separate permit for the on-site power facility in mid-September 2026; construction had not begun as of late August.
Power note
1.25 GW initial campus capacity per the company, with a stated path to 5 GW. Reported earlier as 1.2 GW (Feb. 2026). DCD reports the company's 2020 plan for the site was 120 MW.
Evidence
Primary public records
Size class
50 MW or more (tracker scope)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.