Kane County, IL Solar Energy: Panel Permits (2026)

Kane County Code Chapter 6, the Fee Schedule, sets a dedicated line item for residential and small-scale solar under Section 6-12(U)(3), "Non-Commercial Solar Energy System": any device or assembly that is ground installed or roof-mounted and generates electricity primarily for on-site consumption. 00 per kW of nameplate capacity, or a $100 minimum fee, whichever is greater, separate from the "Commercial Solar Energy Facility" track in the same subsection, which is billed $5,000 per megawatt up to a $75,000 cap and additionally requires a Special Use Permit before any Commercial Solar Energy Building Permit issues.

A homeowner adding rooftop or backyard panels for their own use falls under the non-commercial fee, not the special-use process built for utility-scale solar farms. The code also carves out a true no-fee category: a "Low-Voltage Solar-Powered Device" under Section 6-12(U)(4), such as a solar doorbell, security light, or illumination fixture powered by a collector under 50 volts and kept entirely on the owner's lot, pays no permit fee. 1). 5, a building permit, including a solar permit, expires two years after issuance if the work is not completed, forcing the owner to obtain a new permit for the remaining work; solar is not among the categories (swimming pools, decks, accessory structures, electric service, and similar work) singled out for the shorter 180-day expiration, so the standard two-year clock governs a solar installation left unfinished.