San Luis Valley Solar Ranch
Alamosa County, Colorado · EIA plant ID 57317 · Operator: Avangrid Renewables Inc
Nameplate35MWSummer 35 MW
Generators1in service
Net generation60GWh12 mo to Aug 2026
Capacity factor20%solar units, summer MW
Heat rate—thermal plants only
First online2011
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) |
|---|---|---|---|
| 2011 | 2.6 | 10.0% | — |
| 2012 | 77.5 | 0.0% | — |
| 2013 | 72.7 | 23.7% | — |
| 2014 | 78.5 | 25.6% | — |
| 2015 | 73.8 | 24.1% | — |
| 2016 | 77.2 | 25.1% | — |
| 2017 | 76.3 | 24.9% | — |
| 2018 | 77.7 | 25.3% | — |
| 2019 | 72.8 | 23.8% | — |
| 2020 | 76.5 | 24.9% | — |
| 2021 | 65.7 | 21.4% | — |
| 2022 | 64.5 | 21.0% | — |
| 2023 | 72.8 | 23.7% | — |
| 2024 | 71.8 | 23.3% | — |
| 2025 | 66 | 21.5% | — |
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 | 35 | 35 | Dec 2011 | Operating | — | coming soon |
Owner / operator
Operator: Avangrid Renewables Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Avangrid Renewables Inc | 100.0% | 35 MW |
Nearby plants
Within 80 km.
| Greater Sandhill I | 19 MW | 3.4 km |
| SunE Alamosa | 8 MW | 4.2 km |
| Hooper Solar | 52 MW | 5.6 km |
| Cogentrix of Alamosa | 30 MW | 11 km |
| Center | retired | 16.9 km |
| Monte Vista Solar 2 CSG, LLC | 2 MW | 20.4 km |