SolaireHolman Solar Project
Brewster County, Texas · EIA plant ID 60989 · Operator: SolaireHolman 1, LLC
Nameplate50MWSummer 50 MW
Generators1in service
Net generation77GWh12 mo to Aug 2026
Capacity factor18%solar units, summer MW
Heat rate—thermal plants only
First online2017
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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) |
|---|---|---|---|
| 2017 | 73.1 | 22.1% | — |
| 2018 | 106 | 24.2% | — |
| 2019 | 121.2 | 27.7% | — |
| 2020 | 123.9 | 28.2% | — |
| 2021 | 118.2 | 27.0% | — |
| 2022 | 131.6 | 30.0% | — |
| 2023 | 113.9 | 26.0% | — |
| 2024 | 118 | 26.9% | — |
| 2025 | 106 | 24.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| PV1 | Solar Photovoltaic | PV | 50 | 50 | Apr 2017 | Operating | — | coming soon |
Owner / operator
Operator: SolaireHolman 1, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| SolaireHolman 1, LLC | 100.0% | 50 MW |
Nearby plants
Within 80 km.
| House Mountain | 73 MW | 5 km |
| Triple Butte I | 8 MW | 51.6 km |
| Barilla Solar | 30 MW | 57.4 km |
| RE Roserock | 160 MW | 58.4 km |
| Hoef's Road Storage | retired | 64.1 km |
| Matta Power Station | 10 MW | 67.2 km |