Malachi.Energy

Wonder Valley

Proposed

O'Leary Digital Utah / West GenCo · Box Elder County, UT

Maintained and reviewed by Malachi Rein, LEED AP BD+CDataset version

Summary

Wonder Valley by O'Leary Digital Utah / West GenCo in Box Elder County, UT is planned at 7.5 GW and about $100 billion, and is proposed as of September 2026. It ranks 3rd of 54 tracked US mega projects by planned capacity, 6.9% of the 109.2 GW national total. The capacity figure is utility, iso, or government filing; the investment figure is press reported. Confidence is low: the project is proposed without permits, or the capacity is an estimate. It is the only mega project Malachi.Energy tracks in Utah.

Key figures

Planned capacity

7.5 GW

Utility, ISO, or government filing

Announced investment

$100 billion

Press reported

Status

Proposed

As of September 2026

Target year

Not stated

No public date

Where the figures come from

Capacity basis
Utility, ISO, or government filing
Investment basis
Press reported
Confidence
Low: the project is proposed without permits, or the capacity is an estimate.
Counted in headline totals
Yes. The investment figure is not developer-stated campus cost, so it is listed as announced rather than comparable spend.
Primary source
KPCW, April 2026
Last verified
, dataset version 2026-09-14. Re-checked at every data refresh.

Basis and confidence definitions are in the directory methodology.

What is known

40,000-acre gas-powered campus on a private grid, 7.5 GW per the county agreement (3 GW first phase). MIDA and county approvals April to May 2026; the water rights application was withdrawn days later. The $100B figure is from press reports, not the developer.

Location

Site
Box Elder County, UT
Coordinates
41.85, -112.55
State directory
Data centers in Utah (21 verified facilities)

Other tracked projects in Utah

This is the only mega project Malachi.Energy tracks in Utah.

Cite this record

Rein, Malachi (2026). Wonder Valley (Box Elder County, UT). In US Data Center Directory, dataset version 2026-09-14. Malachi.Energy. https://malachi.energy/data-centers/projects/wonder-valley-box-elder-ut

@misc{malachienergy_wonder_valley_box_elder_ut_2026,
  author = {Rein, Malachi},
  title = {Wonder Valley (Box Elder County, UT)},
  howpublished = {US Data Center Directory, Malachi.Energy},
  year = {2026},
  note = {Dataset version 2026-09-14. Capacity basis: Utility, ISO, or government filing. Investment basis: Press reported.},
  url = {https://malachi.energy/data-centers/projects/wonder-valley-box-elder-ut}
}

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Figures are planned capacity and announced investment from public filings and reporting, not delivered power or audited spend. Capacity basis: utility, iso, or government filing. Investment basis: press reported. Dataset version . Maintained by Malachi Rein for Malachi.Energy.