Solar Gen 2 Solar Facility
Imperial County, California · EIA plant ID 58592 · Operator: Southern Power Co
Nameplate163MWSummer 150 MW
Generators3in service
Net generation377GWh12 mo to Dec 2025
Capacity factor29%solar units, summer MW
Heat rate—thermal plants only
First online2014
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) |
|---|---|---|---|
| 2014 | 19.4 | 8.8% | — |
| 2015 | 418.8 | 29.3% | — |
| 2016 | 418.4 | 31.8% | — |
| 2017 | 405.4 | 30.9% | — |
| 2018 | 385.1 | 29.3% | — |
| 2019 | 380 | 28.9% | — |
| 2020 | 395.1 | 30.0% | — |
| 2021 | 384.8 | 29.3% | — |
| 2022 | 404.5 | 30.8% | — |
| 2023 | 376.5 | 28.7% | — |
| 2024 | 364.2 | 27.6% | — |
| 2025 | 376.7 | 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 |
|---|---|---|---|---|---|---|---|---|
| ALHM | Solar Photovoltaic | PV | 54.4 | 50 | Nov 2014 | Operating | — | coming soon |
| ARK | Solar Photovoltaic | PV | 54.4 | 50 | Nov 2014 | Operating | — | coming soon |
| SONR | Solar Photovoltaic | PV | 54.4 | 50 | Nov 2014 | Operating | — | coming soon |
Owner / operator
Operator: Southern Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| SG2 Imperial Valley, LLC | 100.0% | 163 MW |
Nearby plants
Within 80 km.
| Arrowleaf Solar and Storage | 77 MW | 8.2 km |
| Valencia 2 | 3 MW | 8.3 km |
| Calipatria State Prison | 6 MW | 9.3 km |
| North Brawley Geothermal Plant | 80 MW | 10.1 km |
| CE Turbo LLC | 12 MW | 10.4 km |
| Midway Solar Farm II | 30 MW | 10.8 km |