Tesoro SLC Cogeneration Plant
Natural gas power plant in Salt Lake County, Utah. 30.4 MW of nameplate capacity across 2 generators, operated by Tesoro Refng Marketing Co Mntn Region.
Also known as EIA plant 56509
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 30.4 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- July 2004First generator online
- Operator
- Tesoro Refng Marketing Co Mntn RegionEIA operator ID 54911
- Grid
- PACEBalancing authority PACE
- Price nodes
- None linkedNo verified ISO node
- Location
- Salt Lake County, UT40.7931, −111.9038
- EIA plant ID
- 56509EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Tesoro SLC Cogeneration Plant produces
Free · EIA-923Net generation, 2025
199 GWh
198,679 MWh, final
Capacity factor, 2025
74.6%
2024: 69.3%
January to July 2026
117 GWh
Provisional
Range, 2015 to 2025
139.3–202.6
GWh a year. Low 2023, high 2022
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | 175,245 | Not reported | 12 of 12 |
| 2007 | 40,986 | Not reported | 12 of 12 |
| 2008 | 180,583 | Not reported | 12 of 12 |
| 2009 | 192,831 | Not reported | 12 of 12 |
| 2010 | 183,900 | 84.0% | 12 of 12 |
| 2011 | 173,538 | 79.2% | 12 of 12 |
| 2012 | 158,727 | 72.3% | 12 of 12 |
| 2013 | 156,391 | 71.4% | 12 of 12 |
| 2014 | 180,105 | 82.2% | 12 of 12 |
| 2015 | 177,031 | 80.8% | 12 of 12 |
| 2016 | 194,170 | 88.4% | 12 of 12 |
| 2017 | 195,031 | 89.1% | 12 of 12 |
| 2018 | 182,165 | Not reported | 12 of 12 |
| 2019 | 194,753 | 73.1% | 12 of 12 |
| 2020 | 186,685 | 69.9% | 12 of 12 |
| 2021 | 197,428 | 74.1% | 12 of 12 |
| 2022 | 202,634 | 76.1% | 12 of 12 |
| 2023 | 139,310 | 52.3% | 12 of 12 |
| 2024 | 185,084 | 69.3% | 12 of 12 |
| 2025 | 198,679 | 74.6% | 12 of 12 |
| 2026 (provisional, partial year) | 117,127 | 75.7% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 15.2 | July 2004 |
| 2 | Natural Gas Fired Combustion Turbine | 15.2 | July 2004 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Tesoro Refng Marketing Co Mntn Region as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about Tesoro SLC Cogeneration Plant
How much power does Tesoro SLC Cogeneration Plant produce?
Tesoro SLC Cogeneration Plant reported 198,679 MWh (199 GWh) of net generation in 2025, a 74.6% capacity factor on 30.4 MW of nameplate capacity. From January to July 2026 it reported 117 GWh, which is provisional.
Where is Tesoro SLC Cogeneration Plant?
Tesoro SLC Cogeneration Plant is in Salt Lake County, Utah, at 40.7931, −111.9038. It is in the PacifiCorp - East balancing area (PACE).
Who operates Tesoro SLC Cogeneration Plant?
EIA-860M for August 2026 lists Tesoro Refng Marketing Co Mntn Region as the operator (EIA operator ID 54911). The operator is not always the owner.
When did Tesoro SLC Cogeneration Plant start operating?
Its first generator began operating in July 2004, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page