ProcessUp to date · Jan 15, 2026
Interconnection Fee
A fee charged by the utility to process the application for connecting a solar system to the grid. Ranges from $0 to $1,000+ depending on the utility and system size.
Why It Matters
Interconnection fees are part of your total solar cost. Some utilities charge nothing; others charge $200-$500 for residential systems. Your installer should include this in their quote.
Related Terms
Interconnection
The process of connecting your solar system to the utility grid, requiring utility approval and inspection.
AHJ (Authority Having Jurisdiction)
The local government entity (city, county, or township) responsible for permitting, inspecting, and approving solar installations and other electrical/building work.