Brownfield & Retired Power Plant Sites in Utah
20 catalogued brownfield and retired-generation sites in Utah, listed by former capacity. Each carries an existing utility-scale grid interconnection that a new datacenter load may be able to re-use.
At a glance
What kinds of former sites are in Utah?
By former use, the list includes 8 natural gas, 3 oil, 2 coal, 2 geothermal, 2 hydroelectric, 2 landfill and 1 other categories. Recorded retirement dates run from January 2002 to October 2024, with 7 retirements in 2015 or later. 19 of 20 sites with a measured distance sit within 2 miles of a transmission substation.
How does Utah compare with other states?
Utah ranks 37th of 50 states and DC by number of brownfield and retired-generation sites, out of 2,085 nationally. By recorded capacity (865 MW) it ranks 39th, against 289,280 MW across all states. The state also has 2,458 scored datacenter candidate sites, 4 of them classed as brownfield sites, averaging 51.7 on the 0–100 DC Readiness scale.
Where in Utah are these sites?
- Salt Lake County · 3
- Utah County · 3
- Beaver County · 2
- Carbon County · 1
- Uintah County · 1
- Tooele County · 1
- Weber County · 1
- Davis County · 1
- Cache County · 1
- Wasatch County · 1
- Emery County · 1
- Washington County · 1
All brownfield and retired plant sites in Utah
| Site | Former use | Capacity | Retired | County |
|---|---|---|---|---|
| Kennecott Power Plant | gas | 396 MW | 2019-12-01 | Salt Lake |
| Carbon | coal | 189 MW | 2015-04-01 | Carbon |
| Bonanza | coal | 110 MW | — | Uintah |
| Blundell | geothermal | 30 MW | — | Beaver |
| US Magnesium | gas | 30 MW | — | Tooele |
| Little Mountain | gas | 16 MW | 2011-12-01 | Weber |
| Thermo No 1 | geothermal | 14 MW | 2013-03-01 | Beaver |
| Bountiful City | gas | 14 MW | 2014-01-01 | Davis |
| Whitehead | gas | 12 MW | 2023-09-01 | Utah |
| Olmstead | hydro | 10 MW | 2015-09-01 | Utah |
| eBay - South Jordan | gas | 10 MW | 2020-07-01 | Salt Lake |
| Murray City | gas | 7 MW | 2002-01-01 | Salt Lake |
| Logan City | oil | 5 MW | 2002-12-01 | Cache |
| Heber City | oil | 5 MW | 2024-10-01 | Wasatch |
| Spanish Fork Landfill | landfill | 5 MW | — | — |
| Payson | gas | 5 MW | 2024-09-01 | Utah |
| Joes Valley Dam | hydro | 3 MW | — | Emery |
| Sharon Steel Corp. (Midvale Tailings) | superfund | 2 MW | — | — |
| Bloomington Power Plant | oil | 2 MW | 2010-03-01 | Washington |
| Salt Lake City Landfill | landfill | 1 MW | — | — |
Frequently asked questions
How many retired power plants are in Utah?
GridCensus lists 17 retired power plant sites in Utah from EIA-860 retirement records. 13 have a recorded retirement date, 7 of them in 2015 or later.
What is the largest retired power plant or brownfield site in Utah?
Kennecott Power Plant in Magna is the largest by recorded capacity, at 396.3 MW. It is followed by Carbon (188.6 MW) and Bonanza (110 MW).
Which power plant in Utah retired most recently?
Heber City has the latest recorded retirement date in the state, October 2024, with 4.5 MW of capacity.
Which county in Utah has the most brownfield and retired plant sites?
Salt Lake County has the most, with 3, followed by Utah County with 3.
How many EPA brownfield sites in Utah have completed cleanup?
3 of the 3 EPA-tracked sites listed for Utah are recorded as cleanup complete.
Looking for a specific record? The directory lists every brownfield site, A to Z.
More on Utah, and states with similar counts
- Datacenter candidate sites in Utah· 2,458 sites
- Electric substations in Utah· 243 named
- Brownfield candidate sites nationwide
- Brownfield sites by state
- Brownfield sites in Washington· 21 sites
- Brownfield sites in Hawaii· 16 sites
- Brownfield sites in Rhode Island· 21 sites
- Brownfield sites in Arkansas· 15 sites
About this data
Source: EIA-860 retired generating units and EPA RE-Powering America's Land contaminated-site records, as published March 6, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Brownfield and retired power plant sites in Utah”, https://gridcensus.com/brownfield-sites/utah (data as of March 6, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for brownfield sites in Utah is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.