Utility / operator
Ameren Illinois Company
817 recorded solar installations interconnected by Ameren Illinois Company — mostly in Illinois.
Dataset updated . Sources: LBNL Tracking the Sun + permits + state programs + USGS/EIA utility-scale.
Installations interconnected
817
Total capacity
850.2 MW
DC nameplate
States
2
Median size
100 kW
Median $/W
—
pre-incentive
Third-party owned
0%
lease / PPA
Growth
Installations by year
2015
2
2016
1
2019
2
2020
110
2021
107
2022
21
2023
62
2024
70
2025
110
2026
332
Latest records
Most recent recorded installs
| Date | Location | Size | $/W | Segment |
|---|---|---|---|---|
| Dec 31, 2026 | IL | 5,000 kW | — | UTILITY |
| Dec 31, 2026 | IL | 2,000 kW | — | UTILITY |
| Dec 18, 2026 | IL | 63 kW | — | COM |
| Dec 18, 2026 | IL | 60 kW | — | COM |
| Dec 18, 2026 | IL | 45 kW | — | COM |
| Dec 18, 2026 | IL | 2,000 kW | — | UTILITY |
| Dec 18, 2026 | IL | 69 kW | — | COM |
| Dec 18, 2026 | IL | 2,000 kW | — | UTILITY |
| Dec 18, 2026 | IL | 2,000 kW | — | UTILITY |
| Dec 18, 2026 | IL | 2,000 kW | — | UTILITY |
See all 817 installations →searchable & filterable; export to CSV with a free account
Frequently asked questions
How many solar installations has Ameren Illinois Company interconnected?
PanelCensus records 817 installations interconnected by Ameren Illinois Company, from Jan 1, 2015 to Dec 31, 2026, totalling 850.2 MW of capacity across 2 states. Coverage varies by state, so actual totals may be higher.
Where does Ameren Illinois Company operate?
Most recorded activity is in Illinois (815), Missouri (2).