Seven Mile Hill
Wind power plant in Carbon County, Wyoming. 146.2 MW of nameplate capacity across 2 generators, operated by PacifiCorp.
Also known as Seven Mile Hill Wind Farm · Seven Mile Hill I & II · EIA plant 56843
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 146.2 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- December 2008First generator online
- Operator
- PacifiCorpEIA operator ID 14354
- Grid
- PACEBalancing authority PACE
- Price nodes
- None linkedNo verified ISO node
- Location
- Carbon County, WY41.9203, −106.3758
- EIA plant ID
- 56843EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Seven Mile Hill produces
Free · EIA-923Net generation, 2025
458 GWh
458,287 MWh, final
Capacity factor, 2025
35.8%
2024: 31.1%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
360.6–518.7
GWh a year. Low 2015, high 2020
| 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 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | 19,152 | Not reported | 1 of 12 |
| 2009 | 369,520 | Not reported | 12 of 12 |
| 2010 | 391,845 | 36.2% | 12 of 12 |
| 2011 | 465,292 | 43.0% | 12 of 12 |
| 2012 | 414,750 | 38.2% | 12 of 12 |
| 2013 | 433,146 | 40.0% | 12 of 12 |
| 2014 | 408,639 | 37.7% | 12 of 12 |
| 2015 | 360,626 | 33.3% | 12 of 12 |
| 2016 | 418,688 | Not reported | 12 of 12 |
| 2017 | 400,657 | 38.6% | 12 of 12 |
| 2018 | 422,023 | 40.7% | 12 of 12 |
| 2019 | 385,943 | Not reported | 12 of 12 |
| 2020 | 518,652 | 40.4% | 12 of 12 |
| 2021 | 478,659 | 37.4% | 12 of 12 |
| 2022 | 499,924 | 39.0% | 12 of 12 |
| 2023 | 463,160 | 36.2% | 12 of 12 |
| 2024 | 399,752 | 31.1% | 12 of 12 |
| 2025 | 458,287 | 35.8% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Onshore Wind Turbine | 122.1 | December 2008 |
| 2 | Onshore Wind Turbine | 24.1 | December 2008 |
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.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Power plants near Seven Mile Hill
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Questions about Seven Mile Hill
How much power does Seven Mile Hill produce?
Seven Mile Hill reported 458,287 MWh (458 GWh) of net generation in 2025, a 35.8% capacity factor on 146.2 MW of nameplate capacity.
Where is Seven Mile Hill?
Seven Mile Hill is in Carbon County, Wyoming, at 41.9203, −106.3758. It is in the PacifiCorp - East balancing area (PACE).
Who operates Seven Mile Hill?
EIA-860M for August 2026 lists PacifiCorp as the operator (EIA operator ID 14354). The operator is not always the owner.
When did Seven Mile Hill start operating?
Its first generator began operating in December 2008, 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)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
- Project names from the USGS U.S. Wind Turbine Database
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page