Johnston Solar
Solar power plant · Providence County, Rhode Island
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Concord New Energy
- County
- Providence County
- Generating units
- 1
- Share of state capacity
- 0.05%
- Rank among solar plants in Rhode Island
- #69 of 75
- EIA plant code
- 59858
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| JSI01 | Solar Photovoltaic | 1.4 MW | 1.4 MW | 2015 | 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 Rhode Island
| WED NK Green | Wind | 1.5 MW |
| WED Portsmouth One, LLC | Wind | 1.5 MW |
| GD Richmond Buttonwoods I, LLC | Solar | 1.3 MW |
| Little Bay | Solar | 1.3 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 1.4 MW solar plant and a 1.4 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 Rhode Island power plants · What Rhode Island actually generates