Alamogordo Solar Energy Center
Otero County, New Mexico · EIA plant ID 57577 · Operator: PNM Resources
Nameplate5MWSummer 5 MW
Generators1in service
Net generation11GWh12 mo to Dec 2025
Capacity factor26%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 | 2.5 | 22.7% | — |
| 2012 | 12.1 | 27.5% | — |
| 2013 | 11.7 | 26.8% | — |
| 2014 | 11.3 | 25.7% | — |
| 2015 | 11 | 25.7% | — |
| 2016 | 11.6 | 26.8% | — |
| 2017 | 11.4 | 26.6% | — |
| 2018 | 11.1 | 25.9% | — |
| 2019 | 11 | 25.7% | — |
| 2020 | 11.5 | 26.8% | — |
| 2021 | 10.9 | 25.4% | — |
| 2022 | 11 | 25.7% | — |
| 2023 | 11.3 | 26.3% | — |
| 2024 | 11.2 | 25.9% | — |
| 2025 | 11.1 | 25.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| AGSEC | Solar Photovoltaic | PV | 5 | 4.9 | Oct 2011 | Operating | — | coming soon |
Owner / operator
Operator: PNM Resources. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Public Service Co of NM | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Holloman Solar Facility | 5 MW | 9.2 km |
| Otero Solar | 8 MW | 12.6 km |
| Pluma - Reynolds (CSG) | 5 MW | 20.7 km |
| WSMR I | 4 MW | 68.8 km |