Ryegrass Windfarm
Wind power plant in Elmore County, Idaho. 23 MW of nameplate capacity across 1 generator, operated by Mountain Air Projects, LLC.
Also known as EIA plant 57427
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 23 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- December 2012First generator online
- Operator
- Mountain Air Projects, LLCEIA operator ID 64742
- Grid
- IPCOBalancing authority IPCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Elmore County, ID43.0371, −115.4397
- EIA plant ID
- 57427EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Ryegrass Windfarm produces
Free · EIA-923Net generation, 2025
48.7 GWh
48,676 MWh, final
Capacity factor, 2025
24.2%
2024: 28.7%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
46.7–57.9
GWh a year. Low 2015, high 2024
| 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 | 13,271 | Not reported | 1 of 12 |
| 2013 | 49,467 | 24.6% | 12 of 12 |
| 2014 | 56,392 | 28.0% | 12 of 12 |
| 2015 | 46,727 | 23.2% | 12 of 12 |
| 2016 | 57,037 | 28.2% | 12 of 12 |
| 2017 | 48,920 | 24.3% | 12 of 12 |
| 2018 | 54,291 | 26.9% | 12 of 12 |
| 2019 | 52,259 | 25.9% | 12 of 12 |
| 2020 | 53,812 | 26.6% | 12 of 12 |
| 2021 | 54,992 | 27.3% | 12 of 12 |
| 2022 | 51,222 | 25.4% | 12 of 12 |
| 2023 | 52,364 | 26.0% | 12 of 12 |
| 2024 | 57,944 | 28.7% | 12 of 12 |
| 2025 | 48,676 | 24.2% | 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 | 23.0 | December 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 Mountain Air Projects, LLC 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.
300 analyst questions a month, plus MCP
Query Ryegrass Windfarm and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Ryegrass Windfarm
More plants operated by Mountain Air Projects, LLC
Questions about Ryegrass Windfarm
How much power does Ryegrass Windfarm produce?
Ryegrass Windfarm reported 48,676 MWh (48.7 GWh) of net generation in 2025, a 24.2% capacity factor on 23 MW of nameplate capacity.
Where is Ryegrass Windfarm?
Ryegrass Windfarm is in Elmore County, Idaho, at 43.0371, −115.4397. It is in the Idaho Power Company balancing area (IPCO).
Who operates Ryegrass Windfarm?
EIA-860M for August 2026 lists Mountain Air Projects, LLC as the operator (EIA operator ID 64742). The operator is not always the owner.
When did Ryegrass Windfarm start operating?
Its first generator began operating in December 2012, 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