Explore the largest solar farms expected to come online in Illinois and see all proposed solar projects on a map.
Last updated: May 2026
On this page, you can explore our database of planned solar farms in Illinois. Each month, we track projects in development and update our list of the largest solar farms expected to come online in Illinois.
As of May 2026, there are 303 solar farms in development in Illinois, according to Cleanview's project tracker. Their total planned capacity is 43,291 MW. See also: operating solar farms in Illinois→
Planned Projects
303
Planned Capacity
43,291 MW
Unique Developers
43
Map of planned solar farms in Illinois. Marker size reflects planned capacity.
1,200 MW
Expected Online: December 2029
Location: Lee, Illinois
Developer: Hexagon Energy
1,200 MW
Expected Online: December 2025
Location: Lee, Illinois
1,200 MW
Expected Online: TBD
Location: Lee, Illinois
1,000 MW
Expected Online: December 2025
Location: Lee, Illinois
1,000 MW
Expected Online: TBD
Location: Lee, Illinois
821 MW
Expected Online: October 2024
Location: Fulton, Illinois
800 MW
Expected Online: December 2024
Location: Lee, Illinois
800 MW
Expected Online: TBD
Location: Lee, Illinois
600 MW
Expected Online: March 2031
Location: Lee, Illinois
Developer: Hexagon Energy
320 MW
Expected Online: June 2026
Location: Mason, Illinois
300 MW
Expected Online: June 2026
Location: Whiteside, Illinois
250 MW
Expected Online: June 2026
Location: Washington County, Illinois
Developer: Invenergy
250 MW
Expected Online: June 2026
Location: Saline, Illinois
220 MW
Expected Online: June 2026
Location: Putnam, Illinois
180 MW
Expected Online: June 2026
Location: Fulton, Illinois
150 MW
Expected Online: June 2026
Location: Jackson County, Illinois
Developer: Arevon
100 MW
Expected Online: June 2026
Location: Marion, Illinois
5 MW
Expected Online: June 2026
Location: Bureau, Illinois
Developer: Generate Capital
Cleanview