Caldwell Wastewater Treatment Plant Hybr
Battery storage power plant · Essex County, New Jersey
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- Caldwell Wastewater Treatment Plant
- County
- Essex County
- Generating units
- 2
- Share of state capacity
- 0.01%
- Rank among battery storage plants in New Jersey
- #8 of 10
- EIA plant code
- 62027
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| BAT1 | Batteries | 1.0 MW | 0.5 MW | 2016 | Operating |
| PV1 | Solar Photovoltaic | 0.7 MW | 0.7 MW | 2016 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in New Jersey
| Township of Monroe - Williamstown MS | Solar | 1.8 MW |
| Bayer - Whippany, NJ | Solar | 1.7 MW |
| Jersey Gardens Phase 1 | Solar | 1.7 MW |
| PPL Renewable Energy Merck Solar | Solar | 1.7 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1.7 MW solar plant and a 1.7 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All New Jersey power plants · What New Jersey actually generates