Illinois Solar for All (ILSFA) has released the 2025-2026 Approved Vendor Manual. The Approved Vendor Manual outlines requirements for our approved solar companies for the upcoming program year. The final version reflects changes based on stakeholder feedback. The 2025-2026 Approved Vendor Manual is published in advance of the upcoming program year to provide program entities with time to review updates. For a detailed overview of these changes, see the Response to Comments document or the redlined manual.
The program’s approved solar companies must be in compliance with the outlined requirements by June 1, 2025, for the 2025-2026 program year, and the May 1, 2024, version of the Approved Vendor Manual will remain in effect until that time.
Approved Vendor Manual Webinar
Interested parties are invited to register for a webinar to discuss the 2025-2026 Approved Vendor Manual updates.
Date: May 7, 2025
Time: 1 p.m. CT