Granite Mountain Solar East, LLC
Solar and battery storage project in Iron County, Utah. 160 MW of nameplate capacity across 2 generators, operated by Clearway Renewable Operation & Maintenance LLC.
Also known as Granite Mountain Solar East · EIA plant 59946
This project groups Granite Mountain Solar East, LLC (EIA 59946) and Granite Mountain BESS East (EIA 69679). EIA reports them as separate plants.
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 160 MWSolar 80.0 · Battery storage 80.0
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- September 2016First generator online
- Operator
- Clearway Renewable Operation & Maintenance LLCEIA operator ID 64629
- Grid
- PACEBalancing authority PACE
- Price nodes
- None linkedNo verified ISO node
- Location
- Iron County, UT37.7751, −113.2264
- EIA plant ID
- 59946EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Granite Mountain Solar East produces
Free · EIA-923Net generation, 2025
Not reported
Not reported MWh, final. 0 of 12 months reported
Capacity factor, 2025
Not reported
2024: Not reported
January to July 2026
87.9 GWh
Provisional. 4 of 7 months reported
| 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 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | Not reported | Not reported | 0 of 12 |
| 2022 | Not reported | Not reported | 0 of 12 |
| 2023 | Not reported | Not reported | 0 of 12 |
| 2024 | Not reported | Not reported | 0 of 12 |
| 2025 | Not reported | Not reported | 0 of 12 |
| 2026 (provisional, partial year) | 87,869 | Not reported | 4 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 |
|---|---|---|---|
| GMSE EIA 59946 | Solar Photovoltaic | 80.0 | September 2016 |
| GMEBA EIA 69679 | Batteries | 80.0 | April 2026 |
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 Clearway Renewable Operation & Maintenance 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.
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Power plants near Granite Mountain Solar East
More plants operated by Clearway Renewable Operation & Maintenance LLC
Questions about Granite Mountain Solar East
Where is Granite Mountain Solar East, LLC?
Granite Mountain Solar East, LLC is in Iron County, Utah, at 37.7751, −113.2264. It is in the PacifiCorp - East balancing area (PACE).
Who operates Granite Mountain Solar East, LLC?
EIA-860M for August 2026 lists Clearway Renewable Operation & Maintenance LLC as the operator (EIA operator ID 64629). The operator is not always the owner.
Is Granite Mountain Solar East, LLC a solar or a battery storage plant?
Both. Solar capacity totals 80 MW and battery storage capacity totals 80 MW.
When did Granite Mountain Solar East, LLC start operating?
Its first generator began operating in September 2016, 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