Millville City Sewer Auth WTP
Cumberland County, New Jersey · EIA plant ID 58822 · Operator: GSRP
Nameplate1MWSummer 1 MW
Generators2in service
Net generation1GWh12 mo to Dec 2025
Capacity factor13%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 | 1.9 | 17.5% | — |
| 2014 | 2 | 15.2% | — |
| 2015 | 2 | 15.1% | — |
| 2016 | 2 | 17.8% | — |
| 2017 | 1.9 | 16.9% | — |
| 2018 | 1.8 | 15.5% | — |
| 2019 | 1.7 | 14.7% | — |
| 2020 | 1.1 | 9.9% | — |
| 2021 | 1.7 | 15.1% | — |
| 2022 | 1.7 | 14.9% | — |
| 2023 | 1.5 | 13.1% | — |
| 2024 | 1.2 | 11.8% | — |
| 2025 | 1.4 | 13.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| U1BB | Solar Photovoltaic | PV | 0.8 | 0.8 | Mar 2013 | Operating | — | coming soon |
| U2DB | Solar Photovoltaic | PV | 0.4 | 0.4 | Mar 2013 | Operating | — | coming soon |
Owner / operator
Operator: GSRP. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| GSRP Project Holdings I LLC | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| Clayville | 73 MW | 5.5 km |
| Cumberland (NJ) | 231 MW | 5.8 km |
| Vineland Mays Landing Solar | 4 MW | 6.8 km |
| Cornerstone Power Vineland I LLC | 3 MW | 7.1 km |
| Sherman Avenue | 113 MW | 8.6 km |
| Cumberland County Solid Waste Complex | 5 MW | 9.6 km |