Utility / operator
Interstate Power and Light Co
16 recorded solar installations interconnected by Interstate Power and Light Co — mostly in Iowa.
Dataset updated . Sources: LBNL Tracking the Sun + permits + state programs + USGS/EIA utility-scale.
Installations interconnected
16
Total capacity
129.2 MW
DC nameplate
States
1
Median size
1,350 kW
Median $/W
—
pre-incentive
Third-party owned
0%
lease / PPA
Growth
Installations by year
2016
1
2017
2
2022
1
2024
10
2025
2
Latest records
Most recent recorded installs
| Date | Location | Size | $/W | Segment |
|---|---|---|---|---|
| Dec 1, 2025 | IA | 1,300 kW | — | UTILITY |
| Aug 1, 2025 | IA | 1,400 kW | — | UTILITY |
| Dec 1, 2024 | Palo, IA | 187,510 kW | — | UTILITY |
| Nov 1, 2024 | Wever, IA | 182,800 kW | — | UTILITY |
| Oct 1, 2024 | Creston, IA | 57,950 kW | — | UTILITY |
| Jul 1, 2024 | Chariton, IA | 2,900 kW | — | UTILITY |
| Jul 1, 2024 | Perry, IA | 1,300 kW | — | UTILITY |
| May 1, 2024 | Boone, IA | 1,300 kW | — | UTILITY |
| Jan 1, 2024 | Cedar Rapids, IA | 4,500 kW | — | UTILITY |
| Jan 1, 2024 | Des Moines, IA | 690 kW | — | COM |
See all 16 installations →searchable & filterable; export to CSV with a free account
Service geography
- Iowa
- 16
Frequently asked questions
How many solar installations has Interstate Power and Light Co interconnected?
PanelCensus records 16 installations interconnected by Interstate Power and Light Co, from Jan 1, 2016 to Dec 1, 2025, totalling 129.2 MW of capacity across 1 state. Coverage varies by state, so actual totals may be higher.
Where does Interstate Power and Light Co operate?
Most recorded activity is in Iowa (16).