Illinois

Rooftop solar in Illinois

Illinois splits between two investor-owned utilities — ComEd serving Chicagoland and Ameren Illinois covering most of downstate. A handful of municipalities run their own electric utilities outside the major IOU territories, which changes the solar economics meaningfully. The Illinois Shines program administers renewable-energy-credit payments for residential systems statewide.

Utility coverage

ComEd

Investor-owned utility serving Chicago and the surrounding suburbs (Cook, DuPage, Lake, Will, Kane counties and surrounding areas).

Ameren Illinois

Investor-owned utility serving central and southern Illinois.

Municipal utilities

Some Illinois cities run their own electric utilities outside ComEd or Ameren territory — notably Naperville Electric Utility, Batavia, Geneva, and St. Charles. Solar economics for these addresses can differ substantially from the IOU service areas.

Cities

Each city page covers cost ranges with NREL production data, local incentives, BBB-rated installers serving that ZIP, and an honest read on whether solar pencils for the typical roof.

DuPage County · ComEd

Chicago suburbs in the queue

Each of these gets a full page set as the per-ZIP NREL production data + local permit office + incentive verification lands. If you live in one and want it next, tell us on the schedule call.

Naperville
Arlington Heights
Evanston
Oak Park
Elgin
Bolingbrook
Orland Park
Tinley Park
Palatine
Skokie
Des Plaines
Mount Prospect

Find out if solar makes sense for your Illinois home

See if solar makes sense for your house Have us look at your specific home