Tilden Solar
Solar power plant · Randolph County, Illinois
Nameplate capacity
150 MW
Rank in Illinois
#89
of 580 plants
In service since
2025
November 2025
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Sol Systems
- County
- Randolph County
- Generating units
- 1
- Share of state capacity
- 0.28%
- Rank among solar plants in Illinois
- #10 of 383
- EIA plant code
- 69164
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| TILDN | Solar Photovoltaic | 150 MW | 150 MW | 2025 | 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 Illinois
| Otter Creek Wind Farm LLC | Wind | 150 MW |
| Pleasantville Solar Park | Solar | 150 MW |
| White Oak Energy LLC | Wind | 150 MW |
| Big River Solar | Solar | 149 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 150 MW solar plant and a 150 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 Illinois power plants · What Illinois actually generates