Longboat Solar, LLC
San Bernardino County, California · EIA plant ID 60485 · Operator: Duke Energy Renewables Services
Nameplate20MWSummer 20 MW
Generators1in service
Net generation54GWh12 mo to Dec 2025
Capacity factor31%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 | 6.9 | 46.5% | — |
| 2017 | 58.8 | 33.6% | — |
| 2018 | 60.4 | 34.4% | — |
| 2019 | 52.5 | 30.0% | — |
| 2020 | 52.4 | 29.8% | — |
| 2021 | 51.5 | 29.4% | — |
| 2022 | 44.7 | 25.5% | — |
| 2023 | 25.1 | 14.3% | — |
| 2024 | 42 | 23.9% | — |
| 2025 | 54.3 | 31.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| PV1 | Solar Photovoltaic | PV | 20 | 20 | Dec 2016 | Operating | — | coming soon |
Owner / operator
Operator: Duke Energy Renewables Services. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Longboat Solar, LLC | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Powhatan Solar Power Generation Station 1 LLC | 2 MW | 9.1 km |
| Nunn | 1 MW | 9.3 km |
| Foundation Cemex BMQ | 3 MW | 10.3 km |
| Navajo Solar Power Generation Station 1 LLC | 2 MW | 12 km |
| Otoe Solar Power Generation Station 1 LL | 2 MW | 12 km |
| SunEdison Walmart Apple Valley DC | 1 MW | 14.2 km |