Westmont 300B
Los Angeles County, California · EIA plant ID 60914 · Operator: Altus Power America Management, LLC
Nameplate3MWSummer 2 MW
Generators1in service
Net generation5GWh12 mo to Dec 2025
Capacity factor26%solar units, summer MW
Heat rate—thermal plants only
First online2016
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) |
|---|---|---|---|
| 2016 | 0 | 0.0% | — |
| 2017 | 4.2 | 20.7% | — |
| 2018 | 4.2 | 20.6% | — |
| 2019 | 5.3 | 26.2% | — |
| 2020 | 5.7 | 28.3% | — |
| 2021 | 5.7 | 28.1% | — |
| 2022 | 5.6 | 28.0% | — |
| 2023 | 5.2 | 26.0% | — |
| 2024 | 5.1 | 25.4% | — |
| 2025 | 5.3 | 26.4% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| W5328 | Solar Photovoltaic | PV | 3 | 2.3 | Dec 2016 | Operating | — | coming soon |
Owner / operator
Operator: Altus Power America Management, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Altus Power America Management, LLC | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Westmont 400B | 2 MW | 0.2 km |
| Total Energy Facilities | 38 MW | 0.3 km |
| Los Angeles Refinery Wilmington | 59 MW | 0.3 km |
| Westmont 301 | 2 MW | 0.4 km |
| Westmont 300A | 3 MW | 0.4 km |
| Westmont 400A | 2 MW | 0.4 km |