139th largest plant in Illinois · 4596th nationally
Grand Ridge Solar Farm is a solar power plant in Illinois with a nameplate capacity of 20.0 MW. It generates roughly 27.8k MWh per year — enough to power about 2,647 average U.S. homes.
Its capacity factor of 16% reflects intermittent or peaking operation.
| Plant Name | Grand Ridge Solar Farm |
|---|---|
| Operator | Invenergy Services Llc |
| City | Marseilles |
| County | Lasalle County |
| State | Illinois |
| ZIP | 61634 |
| Coordinates | 41.14342, -88.75834 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Solar Photovoltaic | Solar | 20.0 MW | Operating | 2012 |
| NERC Region | RFC |
|---|---|
| Balancing Authority | Pjm Interconnection, Llc |
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.