FRB Solar Farm
Pima County, Arizona · EIA plant ID 57930 · Operator: FRB Solar LLC
Nameplate2MWSummer 2 MW
Generators1in service
Net generation4GWh12 mo to Dec 2025
Capacity factor23%solar units, summer MW
Heat rate—thermal plants only
First online2011
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2011 | 4.8 | 38.1% | — |
| 2012 | 4.2 | 25.1% | — |
| 2013 | 3 | 18.1% | — |
| 2014 | 1.9 | 11.5% | — |
| 2015 | 1 | 6.1% | — |
| 2016 | 1 | 6.2% | — |
| 2017 | 0.1 | 0.4% | — |
| 2018 | 0.1 | 0.6% | — |
| 2020 | 0 | 0.2% | — |
| 2021 | 0.8 | 5.1% | — |
| 2022 | 2.6 | 15.9% | — |
| 2023 | 4.1 | 24.6% | — |
| 2025 | 3.8 | 22.7% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| UAST | Solar Photovoltaic | PV | 1.9 | 1.9 | Apr 2011 | Operating | — | coming soon |
Owner / operator
Operator: FRB Solar LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| FRB Solar LLC | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Gato Montes Solar, LLC | 5 MW | 0.8 km |
| Prairie Fire | 5 MW | 1 km |
| Iron Horse Battery Storage Hybrid | 12 MW | 1.2 km |
| Cogenra - TEP | 1 MW | 1.3 km |
| Tech Park Solar | 5 MW | 1.4 km |
| UASTP I | 1 MW | 1.8 km |