Exelon Solar Chicago
Cook County, Illinois · EIA plant ID 57191 · Operator: luminace solar chicago, llc
Nameplate9MWSummer 9 MW
Generators1in service
Net generation9GWh12 mo to Aug 2026
Capacity factor11%solar units, summer MW
Heat rate—thermal plants only
First online2009
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2009 | 0 | 0.2% | — |
| 2010 | 14.1 | 17.9% | — |
| 2011 | 14.1 | 17.8% | — |
| 2012 | 15.1 | 19.1% | — |
| 2013 | 14.3 | 18.1% | — |
| 2014 | 14.5 | 18.4% | — |
| 2015 | 14.1 | 17.9% | — |
| 2016 | 14.1 | 17.8% | — |
| 2017 | 14.3 | 18.2% | — |
| 2018 | 13.7 | 17.4% | — |
| 2019 | 14.1 | 17.9% | — |
| 2020 | 13.8 | 17.5% | — |
| 2021 | 13.2 | 16.7% | — |
| 2022 | 13.5 | 17.1% | — |
| 2023 | 12.6 | 16.0% | — |
| 2024 | 11.7 | 14.8% | — |
| 2025 | 12.9 | 16.3% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| ECS1 | Solar Photovoltaic | PV | 9 | 9 | Dec 2009 | Operating | — | coming soon |
Owner / operator
Operator: luminace solar chicago, llc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| luminace solar chicago, llc | 100.0% | 9 MW |
Nearby plants
Within 80 km.
| CID Gas Recovery | 3 MW | 6.4 km |
| Thornridge High School | 1 MW | 7.4 km |
| Calumet Energy Team LLC | 313 MW | 7.9 km |
| W 167th St | — | 9.7 km |
| Southeast Chicago Energy Project | retired | 10 km |
| Thornwood High School | 1 MW | 10.9 km |