Residential Solar Approved Vendor Registration Deadline - Illinois Solar for All

Approved Vendor registration applications are reviewed on an ongoing basis. However, to submit projects during the 2025-2026 project submission windows, entities seeking to become Approved Vendors must submit their applications by:

  • June 2, 2025 – Residential Solar (Small and Large) sub-program

Applications must be approved before the submission window closes to submit projects. Learn more about the registration process. As a reminder, applicants must first be registered with Illinois Shines.