NRG Solar Borrego I
San Diego County, California · EIA plant ID 57455 · Operator: NRG Solar Borrego I
Nameplate26MWSummer 26 MW
Generators1in service
Net generation61GWh12 mo to Dec 2025
Capacity factor27%solar units, summer MW
Heat rate—thermal plants only
First online2013
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) |
|---|---|---|---|
| 2012 | 0 | — | — |
| 2013 | 67 | 32.1% | — |
| 2014 | 73.1 | 32.1% | — |
| 2015 | 71.4 | 31.4% | — |
| 2016 | 71.1 | 31.1% | — |
| 2017 | 69 | 30.3% | — |
| 2018 | 68.5 | 30.1% | — |
| 2019 | 66.4 | 29.1% | — |
| 2020 | 65.2 | 28.5% | — |
| 2021 | 70.4 | 30.9% | — |
| 2022 | 64.7 | 28.4% | — |
| 2023 | 64.6 | 28.4% | — |
| 2024 | 62.2 | 27.2% | — |
| 2025 | 61.3 | 26.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| SB1 | Solar Photovoltaic | PV | 26 | 26 | Feb 2013 | Operating | — | coming soon |
Owner / operator
Operator: NRG Solar Borrego I. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| NRG Solar Borrego I | 100.0% | 26 MW |
Nearby plants
Within 80 km.
| Desert Green Solar Farm LLC | 6 MW | 3.2 km |
| Dark Sky Energy Center | 7 MW | 3.2 km |
| Borrego Springs Energy Storage | 2 MW | 3.2 km |
| Morongo CRS 1 | 3 MW | 30.5 km |
| Ocotillo Wells | 100 MW | 34.7 km |
| Seville 1 | 20 MW | 37.6 km |