Middle Daisy
Lea County, New Mexico · EIA plant ID 61681 · Operator: Onyx Asset Services Group
Nameplate5MWSummer 5 MW
Generators1in service
Net generation9GWh12 mo to Dec 2025
Capacity factor21%solar units, summer MW
Heat rate—thermal plants only
First online2017
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 | 1 | 13.6% | — |
| 2018 | 13.7 | 31.2% | — |
| 2019 | 13.1 | 29.8% | — |
| 2020 | 13.6 | 30.9% | — |
| 2021 | 5.8 | 13.3% | — |
| 2022 | 5.5 | 12.6% | — |
| 2023 | 7.3 | 16.6% | — |
| 2024 | 13.3 | 30.3% | — |
| 2025 | 9.4 | 21.4% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 10257 | Solar Photovoltaic | PV | 5 | 5 | Nov 2017 | Operating | — | coming soon |
Owner / operator
Operator: Onyx Asset Services Group. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Middle Daisy, LLC | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| LCEC Generation LLVC | 47 MW | 4.4 km |
| Wildcat Wind | 27 MW | 8.5 km |
| Cunningham Solar II | — | 21.5 km |
| Cunningham Solar I & BESS | 108 MW | 21.8 km |
| Oso Grande Wind Farm | 250 MW | 28 km |
| Hobbs Generating Station | 682 MW | 28.4 km |