Post Rock Wind Power Project, LLC
Wind power plant in Ellsworth County, Kansas. 201 MW of nameplate capacity across 1 generator, operated by Pattern Operators LP.
Also known as Post Rock Wind Power Project · Post Rock · EIA plant 57678
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 201 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- September 2012First generator online
- Operator
- Pattern Operators LPEIA operator ID 56545
- Grid
- SPPBalancing authority SWPP
- Price nodes
- 1 SPP nodeResource nodes with prices
- Location
- Ellsworth County, KS38.8417, −98.2994
- EIA plant ID
- 57678EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Post Rock Wind Power Project produces
Free · EIA-923Net generation, 2025
400 GWh
399,630 MWh, final
Capacity factor, 2025
22.7%
2024: 22.2%
January to July 2026
272 GWh
Provisional
Range, 2015 to 2025
392.4–780.8
GWh a year. Low 2024, high 2015
| 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 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | 183,048 | Not reported | 4 of 12 |
| 2013 | 855,914 | 48.6% | 12 of 12 |
| 2014 | 844,719 | 48.0% | 12 of 12 |
| 2015 | 780,778 | 44.3% | 12 of 12 |
| 2016 | 761,560 | 43.1% | 12 of 12 |
| 2017 | 780,674 | 44.3% | 12 of 12 |
| 2018 | 723,674 | 41.1% | 12 of 12 |
| 2019 | 755,909 | 42.9% | 12 of 12 |
| 2020 | 765,642 | 43.4% | 12 of 12 |
| 2021 | 762,413 | 43.3% | 12 of 12 |
| 2022 | 742,087 | 42.1% | 12 of 12 |
| 2023 | 455,751 | 25.9% | 12 of 12 |
| 2024 | 392,444 | 22.2% | 12 of 12 |
| 2025 | 399,630 | 22.7% | 12 of 12 |
| 2026 (provisional, partial year) | 271,949 | 26.6% | 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 account · SPPEmissions
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 | 201.0 | September 2012 |
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 Pattern Operators LP 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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Questions about Post Rock Wind Power Project
How much power does Post Rock Wind Power Project, LLC produce?
Post Rock Wind Power Project, LLC reported 399,630 MWh (400 GWh) of net generation in 2025, a 22.7% capacity factor on 201 MW of nameplate capacity. From January to July 2026 it reported 272 GWh, which is provisional.
Where is Post Rock Wind Power Project, LLC?
Post Rock Wind Power Project, LLC is in Ellsworth County, Kansas, at 38.8417, −98.2994. It is in the Southwest Power Pool balancing area (SWPP).
Who operates Post Rock Wind Power Project, LLC?
EIA-860M for August 2026 lists Pattern Operators LP as the operator (EIA operator ID 56545). The operator is not always the owner.
When did Post Rock Wind Power Project, LLC start operating?
Its first generator began operating in September 2012, according to EIA-860M.
Does InfraMap have power prices for Post Rock Wind Power Project, LLC?
Yes. InfraMap has SPP day-ahead and real-time prices at 1 price node linked to Post Rock Wind Power Project, LLC, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
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)
- SPP day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- 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