South Portland Ess, Llc is a battery storage power plant in Maine.
| Plant Name | South Portland Ess, Llc |
|---|---|
| Operator | South Portland Ess, Llc |
| City | South Portland |
| County | Cumberland County |
| State | Maine |
| ZIP | 04106 |
| Coordinates | 43.62294, -70.33098 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Batteries | Battery | 10.0 MW | Regulatory | — |
| NERC Region | NPCC |
|---|---|
| Balancing Authority | Iso New England Inc. |
Battery storage facilities don't generate electricity — they store it. They charge from the grid (often from solar during the day) and discharge during peak demand or to firm up renewables. EIA classifies them as power plants because they connect to the grid like one.