Mt. Home Solar 1, LLC
Solar power plant in Elmore County, Idaho. 20 MW of nameplate capacity across 1 generator, operated by Standard Solar.
Also known as Mountain Home Solar · Mt. Home Solar 1 · EIA plant 59695
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 20 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- March 2017First generator online
- Operator
- Standard SolarEIA operator ID 60531
- Grid
- IPCOBalancing authority IPCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Elmore County, ID43.1290, −115.7520
- EIA plant ID
- 59695EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Mt. Home Solar 1 produces
Free · EIA-923Net generation, 2025
48.5 GWh
48,506 MWh, final
Capacity factor, 2025
27.7%
2024: 26.9%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2018 to 2025
38.2–51.2
GWh a year. Low 2023, 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 | 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 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | 38,043 | Not reported | 10 of 12 |
| 2018 | 47,324 | 27.0% | 12 of 12 |
| 2019 | 50,022 | 28.6% | 12 of 12 |
| 2020 | 51,159 | 29.1% | 12 of 12 |
| 2021 | 47,447 | 27.1% | 12 of 12 |
| 2022 | 42,436 | 24.2% | 12 of 12 |
| 2023 | 38,185 | 21.8% | 12 of 12 |
| 2024 | 47,183 | 26.9% | 12 of 12 |
| 2025 | 48,506 | 27.7% | 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 |
|---|---|---|---|
| MHPV1 | Solar Photovoltaic | 20.0 | March 2017 |
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 Standard Solar 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 Mt. Home Solar 1
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Questions about Mt. Home Solar 1
How much power does Mt. Home Solar 1, LLC produce?
Mt. Home Solar 1, LLC reported 48,506 MWh (48.5 GWh) of net generation in 2025, a 27.7% capacity factor on 20 MW of nameplate capacity.
Where is Mt. Home Solar 1, LLC?
Mt. Home Solar 1, LLC is in Elmore County, Idaho, at 43.1290, −115.7520. It is in the Idaho Power Company balancing area (IPCO).
Who operates Mt. Home Solar 1, LLC?
EIA-860M for August 2026 lists Standard Solar as the operator (EIA operator ID 60531). The operator is not always the owner.
When did Mt. Home Solar 1, LLC start operating?
Its first generator began operating in March 2017, 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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page