Antelope Expansion 3B
Los Angeles County, California · EIA plant ID 62674 · Operator: AES Distributed Energy
Nameplate5MWSummer 5 MW
Generators1in service
Net generation13GWh12 mo to Dec 2025
Capacity factor29%solar units, summer MW
Heat rate—thermal plants only
First online2021
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) |
|---|---|---|---|
| 2021 | 7.4 | 28.8% | — |
| 2022 | 13.4 | 30.6% | — |
| 2023 | 11.4 | 26.0% | — |
| 2024 | 11 | 25.0% | — |
| 2025 | 12.6 | 28.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| ANX3B | Solar Photovoltaic | PV | 5 | 5 | Jun 2021 | Operating | — | coming soon |
Owner / operator
Operator: AES Distributed Energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| AES Distributed Energy | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| North Lancaster Ranch | 20 MW | 0.9 km |
| Antelope Expansion 3A | 15 MW | 1 km |
| Summer Solar LLC | 20 MW | 1.2 km |
| Western Antelope Blue Sky B | 20 MW | 1.6 km |
| Elevation Solar C | 40 MW | 2 km |
| Central Antelope Dry Ranch C | 20 MW | 2 km |