Washington Millfield Solar, LLC
Beaufort County, North Carolina · EIA plant ID 58846 · Operator: Duke Energy Renewables Services
Nameplate5MWSummer 5 MW
Generators1in service
Net generation8GWh12 mo to Dec 2025
Capacity factor18%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) |
|---|---|---|---|
| 2013 | 0.3 | 8.3% | — |
| 2014 | 9.7 | 22.1% | — |
| 2015 | 9.6 | 21.8% | — |
| 2016 | 9.7 | 22.1% | — |
| 2017 | 10 | 22.7% | — |
| 2018 | 9.2 | 21.0% | — |
| 2019 | 6 | 13.7% | — |
| 2020 | 8.8 | 19.9% | — |
| 2021 | 9 | 20.5% | — |
| 2022 | 9.2 | 21.0% | — |
| 2023 | 8.4 | 19.1% | — |
| 2024 | 8.3 | 19.0% | — |
| 2025 | 8 | 18.4% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Solar Photovoltaic | PV | 5 | 5 | Dec 2013 | 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).
| Duke Energy Renewables Services | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Washington White Post Solar LLC | 12 MW | 1.5 km |
| Pamlico Partners Solar | 5 MW | 3.3 km |
| Wilkinson Solar LLC | 81 MW | 12.5 km |
| PCS Phosphate | 54 MW | 14.5 km |
| Washington Airport Solar LLC | 5 MW | 21.2 km |
| Chocowinity Solar LLC | 5 MW | 23.3 km |