Amazon SAN3 Solar Project
San Diego County, California · EIA plant ID 67170 · Operator: Solar Star Prime 4 LLC
Nameplate7MWSummer 7 MW
Generators2in service
Net generation8GWh12 mo to Dec 2025
Capacity factor21%solar units, summer MW
Heat rate—thermal plants only
First online2024
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) |
|---|---|---|---|
| 2024 | 6.1 | 22.9% | — |
| 2025 | 8.4 | 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 |
|---|---|---|---|---|---|---|---|---|
| ASBA | Batteries | BA | 2.4 | 2.4 | May 2024 | Operating | — | coming soon |
| ASSP | Solar Photovoltaic | PV | 4.6 | 4.6 | May 2024 | Operating | — | coming soon |
Owner / operator
Operator: Solar Star Prime 4 LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Solar Star Prime 4 LLC | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| Amazon - SAN5 | 3 MW | 0.8 km |
| Larkspur Energy Facility | 100 MW | 1 km |
| CalPeak Power Border Peaker Plant | 115 MW | 1.1 km |
| Pio Pico Energy Center | 395 MW | 1.7 km |
| Richard J Donovan Correctional Facility | 3 MW | 1.9 km |
| Gateway Energy Storage System | 250 MW | 2.2 km |