What Illinois Solar Owners Pay When the Grid Isn’t Ready for Your System
Understanding your interconnection agreement before signing saves thousands in unexpected upgrade costs. This legally binding contract between you and your utility company establishes the terms for connecting your solar system to the electrical grid, but hidden within its technical language are provisions that can significantly impact your project economics.
Illinois solar customers often discover upgrade requirements only after their utility conducts a detailed system impact study. These upgrades—ranging from simple meter replacements costing a few hundred dollars to transformer installations exceeding $50,000—become your …
