59th largest plant in Mississippi · 9135th nationally
Walnut Grove Demonstration Plant is a solar power plant in Mississippi with a nameplate capacity of 3.0 MW. It generates roughly 1.3k MWh per year — enough to power about 125 average U.S. homes.
Its capacity factor of 5% reflects intermittent or peaking operation.
| Plant Name | Walnut Grove Demonstration Plant |
|---|---|
| Operator | Mississippi Power Co |
| City | Walnut Grove |
| County | Leake County |
| State | Mississippi |
| ZIP | 39189 |
| Coordinates | 32.57975, -89.45417 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1A | Batteries | Battery | 1.5 MW | Operating | 2023 |
| 1B | Solar Photovoltaic | Solar | 1.5 MW | Operating | 2023 |
| NERC Region | SERC |
|---|---|
| Balancing Authority | Southern Company Services, Inc. - Trans |
Utility-scale solar farms convert sunlight directly into electricity using photovoltaic panels. They produce zero direct emissions and have no fuel cost, but generation is variable — peaking at midday and falling to zero at night. Capacity factors typically run 18–28% in good locations.