Naughton
Coal and natural gas power plant in Lincoln County, Wyoming. 707.2 MW of nameplate capacity across 3 generators, operated by PacifiCorp.
Also known as Naughton Coal Plant · EIA plant 4162
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Key facts
- Capacity
- 707.2 MWCoal 380.8 · Natural gas 326.4
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- May 1963First generator online
- Operator
- PacifiCorpEIA operator ID 14354
- Grid
- PACEBalancing authority PACE
- Price nodes
- None linkedNo verified ISO node
- Location
- Lincoln County, WY41.7581, −110.5983
- EIA plant ID
- 4162EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Naughton produces
Free · EIA-923Net generation, 2025
2.28 TWh
2,281,351 MWh, final
Capacity factor, 2025
36.8%
2024: 44.7%
January to July 2026
857 GWh
Provisional
Range, 2015 to 2025
2.3–4.9
TWh a year. Low 2025, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 5,368,410 | Not reported | 12 of 12 |
| 2001 | 5,349,697 | Not reported | 12 of 12 |
| 2002 | 5,019,304 | Not reported | 12 of 12 |
| 2003 | 4,807,385 | Not reported | 12 of 12 |
| 2004 | 5,245,831 | Not reported | 12 of 12 |
| 2005 | 5,238,417 | Not reported | 12 of 12 |
| 2006 | 4,929,916 | Not reported | 12 of 12 |
| 2007 | 5,210,618 | Not reported | 12 of 12 |
| 2008 | 5,113,629 | Not reported | 12 of 12 |
| 2009 | 3,941,635 | Not reported | 10 of 12 |
| 2010 | 5,339,385 | 86.2% | 12 of 12 |
| 2011 | 5,102,235 | 82.4% | 12 of 12 |
| 2012 | 5,064,299 | 81.5% | 12 of 12 |
| 2013 | 5,533,895 | 89.3% | 12 of 12 |
| 2014 | 4,958,589 | Not reported | 12 of 12 |
| 2015 | 4,899,321 | 67.2% | 12 of 12 |
| 2016 | 4,871,839 | 66.7% | 12 of 12 |
| 2017 | 4,740,720 | 65.0% | 12 of 12 |
| 2018 | 4,740,078 | 65.0% | 12 of 12 |
| 2019 | 2,840,670 | 39.0% | 12 of 12 |
| 2020 | 2,659,033 | Not reported | 12 of 12 |
| 2021 | 2,596,446 | 35.6% | 12 of 12 |
| 2022 | 2,456,201 | 33.7% | 12 of 12 |
| 2023 | 2,766,703 | Not reported | 12 of 12 |
| 2024 | 2,778,699 | 44.7% | 12 of 12 |
| 2025 | 2,281,351 | 36.8% | 12 of 12 |
| 2026 (provisional, partial year) | 856,601 | 23.8% | 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 CAMPDCO₂, 2025
2.55M
US short tons. 2024: 2.83M
SO₂, 2025
1,073
US short tons
NOx, 2025
2,349
US short tons
CO₂ per MWh, calculated
1.12 t
About 2,236 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (1, 2, 3), matched to EIA plant 4162 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
2,579
million gallons
Consumption, 2024
2,102
million gallons
Source
Hams Fork River
Surface, Fresh. Induced-draft tower
Watershed stress
Severe · 0.985
USGS SUI, HUC12 Upper North Fork Little Muddy Creek
36 of 36 cooling months report withdrawal. SUI of the HUC12 containing the plant. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Steam Coal | 163.2 | May 1963 |
| 2 | Conventional Steam Coal | 217.6 | October 1968 |
| 3 | Natural Gas Steam Turbine | 326.4 | October 1971 |
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 PacifiCorp 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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Power plants near Naughton
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Questions about Naughton
How much power does Naughton produce?
Naughton reported 2,281,351 MWh (2.28 TWh) of net generation in 2025, a 36.8% capacity factor on 707.2 MW of nameplate capacity. From January to July 2026 it reported 857 GWh, which is provisional.
Where is Naughton?
Naughton is in Lincoln County, Wyoming, at 41.7581, −110.5983. It is in the PacifiCorp - East balancing area (PACE).
Who operates Naughton?
EIA-860M for August 2026 lists PacifiCorp as the operator (EIA operator ID 14354). The operator is not always the owner.
Is Naughton a coal or a natural gas plant?
Both. Coal capacity totals 380.8 MW and natural gas capacity totals 326.4 MW.
When did Naughton start operating?
Its first generator began operating in May 1963, 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
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page