147th largest plant in Indiana · 8898th nationally
Duke Building 129 is a solar power plant in Indiana with a nameplate capacity of 3.4 MW. It generates roughly 4.5k MWh per year — enough to power about 426 average U.S. homes.
Its capacity factor of 15% reflects intermittent or peaking operation.
| Plant Name | Duke Building 129 |
|---|---|
| Operator | Concord New Energy |
| City | Indianapolis |
| County | Marion County |
| State | Indiana |
| ZIP | 46268 |
| Coordinates | 39.91083, -86.24528 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| DU129 | Solar Photovoltaic | Solar | 3.4 MW | Operating | 2014 |
| NERC Region | RFC |
|---|---|
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. |
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.