Explore the largest solar farms in Iowa and see all the utility-scale solar projects in Iowa on a map.
Last updated: May 2026
On this page, you can explore our real-time database of solar farms in Iowa. Each month, we track solar projects and update our list of the largest solar farms in Iowa.
As of May 2026, there are 35 utility-scale solar farms in Iowa, according to Cleanview's project tracker. Their total operating capacity is 694 MW. In 2025, there were 5 solar farms built in Iowa. See also: planned solar farms in Iowa→
Total Solar Farms
35
Total Capacity
694 MW
Built in 2025
5
Map of solar farms in Iowa. Marker size reflects capacity — only facilities with reported capacity data are shown.
150 MW
Year Operational: December 2024
Location: Linn, Iowa
Developer: Alliant Energy
150 MW
Year Operational: November 2024
Location: Lee, Iowa
Developer: Alliant Energy
100 MW
Year Operational: March 2021
Location: Louisa, Iowa
100 MW
Year Operational: July 2022
Location: Webster, Iowa
50 MW
Year Operational: March 2024
Location: Linn, Iowa
Developer: Alliant Energy
50 MW
Year Operational: October 2024
Location: Union, Iowa
Developer: Alliant Energy
25 MW
Year Operational: January 2022
Location: Adair, Iowa
7 MW
Year Operational: January 2022
Location: Franklin, Iowa
5 MW
Year Operational: December 2025
Location: Poweshiek, Iowa
Developer: Alliant Energy
5 MW
Year Operational: December 2025
Location: Poweshiek, Iowa
Developer: Alliant Energy
3 MW
Year Operational: December 2025
Location: Mitchell, Iowa
Developer: OneEnergy
1 MW
Year Operational: December 2025
Location: Clinton, Iowa
Developer: Alliant Energy
3 MW
Year Operational: September 2025
Location: Mitchell, Iowa
Developer: OneEnergy
1 MW
Year Operational: August 2025
Location: Union, Iowa
Developer: Alliant Energy
150 MW
Year Operational: December 2024
Location: Linn, Iowa
Developer: Alliant Energy
3 MW
Year Operational: December 2024
Location: Cerro Gordo, Iowa
Developer: Renewable Energy Group
150 MW
Year Operational: November 2024
Location: Lee, Iowa
Developer: Alliant Energy
50 MW
Year Operational: October 2024
Location: Union, Iowa
Developer: Alliant Energy
Cleanview