Sunnyside Cogen Associates
Coal power plant in Carbon County, Utah. 58.1 MW of nameplate capacity across 1 generator, operated by Sunnyside Cogeneration Assoc.
Also known as EIA plant 50951
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 58.1 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- February 1993First generator online
- Operator
- Sunnyside Cogeneration AssocEIA operator ID 21734
- Grid
- PACEBalancing authority PACE
- Price nodes
- None linkedNo verified ISO node
- Location
- Carbon County, UT39.5472, −110.3917
- EIA plant ID
- 50951EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Sunnyside Cogen Associates produces
Free · EIA-923Net generation, 2025
226 GWh
225,810 MWh, final
Capacity factor, 2025
44.4%
2024: 71.4%
January to July 2026
0 MWh
Provisional
Range, 2015 to 2025
225.8–418.2
GWh a year. Low 2025, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 408,453 | Not reported | 12 of 12 |
| 2001 | 387,382 | Not reported | 12 of 12 |
| 2002 | 390,985 | Not reported | 12 of 12 |
| 2003 | 400,913 | Not reported | 12 of 12 |
| 2004 | 395,307 | Not reported | 12 of 12 |
| 2005 | 416,603 | Not reported | 12 of 12 |
| 2006 | 418,618 | Not reported | 12 of 12 |
| 2007 | 404,184 | Not reported | 12 of 12 |
| 2008 | 414,164 | Not reported | 12 of 12 |
| 2009 | 410,933 | Not reported | 12 of 12 |
| 2010 | 377,725 | 74.2% | 12 of 12 |
| 2011 | 419,227 | 82.4% | 12 of 12 |
| 2012 | 418,235 | 82.0% | 12 of 12 |
| 2013 | 413,905 | 81.3% | 12 of 12 |
| 2014 | 419,571 | 82.4% | 12 of 12 |
| 2015 | 418,198 | 82.2% | 12 of 12 |
| 2016 | 400,976 | 78.6% | 12 of 12 |
| 2017 | 414,371 | 81.4% | 12 of 12 |
| 2018 | 412,891 | 81.1% | 12 of 12 |
| 2019 | 401,049 | 78.8% | 12 of 12 |
| 2020 | 322,074 | 63.1% | 12 of 12 |
| 2021 | 400,898 | 78.8% | 12 of 12 |
| 2022 | 404,807 | 79.5% | 12 of 12 |
| 2023 | 316,504 | 62.2% | 12 of 12 |
| 2024 | 334,731 | 71.4% | 11 of 12 |
| 2025 | 225,810 | 44.4% | 12 of 12 |
| 2026 (provisional, partial year) | 0 | 0.0% | 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 CAMPDEPA units are linked to this plant, but no annual emissions are reported.
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 |
|---|---|---|---|
| GEN1 | Conventional Steam Coal | 58.1 | February 1993 |
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 Sunnyside Cogeneration Assoc 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 Sunnyside Cogen Associates
How much power does Sunnyside Cogen Associates produce?
Sunnyside Cogen Associates reported 225,810 MWh (226 GWh) of net generation in 2025, a 44.4% capacity factor on 58.1 MW of nameplate capacity. From January to July 2026 it reported 0 MWh, which is provisional.
Where is Sunnyside Cogen Associates?
Sunnyside Cogen Associates is in Carbon County, Utah, at 39.5472, −110.3917. It is in the PacifiCorp - East balancing area (PACE).
Who operates Sunnyside Cogen Associates?
EIA-860M for August 2026 lists Sunnyside Cogeneration Assoc as the operator (EIA operator ID 21734). The operator is not always the owner.
When did Sunnyside Cogen Associates start operating?
Its first generator began operating in February 1993, 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)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page