Pumpjack Solar I
Kern County, California · EIA plant ID 59322 · Operator: Duke Energy Renewables Services
Nameplate20MWSummer 20 MW
Generators1in service
Net generation51GWh12 mo to Dec 2025
Capacity factor29%solar units, summer MW
Heat rate—thermal plants only
First online2015
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) |
|---|---|---|---|
| 2015 | 50.1 | 28.6% | — |
| 2016 | 49.8 | 28.3% | — |
| 2017 | 49.7 | 28.4% | — |
| 2018 | 50.4 | 28.8% | — |
| 2019 | 51 | 29.1% | — |
| 2020 | 45.1 | 25.7% | — |
| 2021 | 49.2 | 28.1% | — |
| 2022 | 49.6 | 28.3% | — |
| 2023 | 43.8 | 25.0% | — |
| 2024 | 46.2 | 26.3% | — |
| 2025 | 50.6 | 28.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Solar Photovoltaic | PV | 20 | 20 | Jan 2015 | 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).
| Pumpjack Solar I, LLC | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Berry NMW Cogens | 11 MW | 1 km |
| La Paloma Generating LLC | 1,156 MW | 3 km |
| McKittrick Cogen | 12 MW | 3.6 km |
| McKittrick Limited | 46 MW | 3.9 km |
| North Midway Cogen | 11 MW | 3.9 km |
| Cymric 6Z Cogen | 7 MW | 4.9 km |