Gilbert Solar Facility I, LLC
Maricopa County, Arizona · EIA plant ID 58543 · Operator: Gilbert Solar Facility I, LLC
Nameplate2MWSummer 2 MW
Generators1in service
Net generation4GWh12 mo to Dec 2025
Capacity factor24%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) |
|---|---|---|---|
| 2013 | 4.7 | 21.6% | — |
| 2014 | 4.7 | 21.4% | — |
| 2015 | 2.6 | 11.8% | — |
| 2016 | 4.3 | 19.4% | — |
| 2017 | 4.1 | 18.9% | — |
| 2018 | 4.1 | 18.6% | — |
| 2019 | 3.5 | 16.2% | — |
| 2020 | 3 | 13.6% | — |
| 2021 | 3.7 | 16.8% | — |
| 2022 | 2.9 | 13.3% | — |
| 2023 | 3.6 | 16.3% | — |
| 2024 | 3.8 | 22.8% | — |
| 2025 | 4 | 24.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Solar Photovoltaic | PV | 2 | 1.9 | Oct 2011 | Operating | — | coming soon |
Owner / operator
Operator: Gilbert Solar Facility I, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Gilbert Solar Facility I, LLC | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Superstition Energy Storage | 90 MW | 2.7 km |
| Santan | 1,326 MW | 5.5 km |
| Kyrene | 596 MW | 12.3 km |
| South Consolidated | 1 MW | 12.5 km |
| Ocotillo | 806 MW | 12.6 km |
| Arizona State University CHP | 17 MW | 13.5 km |