Duke Building 129
Solar power plant · Marion County, Indiana
Nameplate capacity
3.4 MW
Rank in Indiana
#159
of 224 plants
In service since
2014
December 2014
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Concord New Energy
- County
- Marion County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among solar plants in Indiana
- #69 of 123
- EIA plant code
- 59434
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| DU129 | Solar Photovoltaic | 3.4 MW | 3.4 MW | 2014 | 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 Indiana
| POET Biorefining- Alexandria, LLC | Natural gas | 3.6 MW |
| POET Biorefining - Portland | Natural gas | 3.5 MW |
| Elkhart | Hydro | 3.4 MW |
| IMPA Winamac Solar Park | Solar | 3.3 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 3.4 MW solar plant and a 3.4 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 Indiana power plants · What Indiana actually generates