The Illinois Solar for All: Residential Solar sub-program project submission window for the 2025-2026 program year opens on June 16, 2025, at 9 a.m. CT. At that time, Approved Vendors can begin submitting Part I Applications until the window closes on July 1, 2025, at 5 p.m. CT. Part I Applications must be entered and submitted during this window to participate in the Project Selection Protocol process (if needed).
The budget for all Illinois Solar for All sub-programs is currently being finalized and will be released in late June. If sub-program funding remains after the initial project submission window, a rolling submission window will open for Residential Solar projects on July 9, 2025. Projects submitted during the rolling submission window are considered on a first-come, first-served basis until the end of the 2025-2026 program year or for as long as remaining sub-program funding is available. View the Program Calendar for more information.