Some Approved Vendors are installers, but some Approved Vendors are aggregators who manage RECs, or have a different business model. However, every Illinois Shines PV system will ultimately have an Approved Vendor associated with it, even if you only deal with an installer. The Illinois Shines disclosure form that your installer provides to you will name the Approved Vendor. The Approved Vendor is ultimately responsible for ensuring that consumer protections are met and that RECs from your system are delivered.