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Chicago — Tier-1 Pillar

Chicago Solar — Illinois Shines SREC, ComEd Interconnection, Flat-Roof Mount

Chicago solar reality. Illinois Shines SREC program compensates for solar output, ComEd net metering, flat-roof ballast mounting on 3-flats, pitched-roof on bungalows, typical 6-10 kW residential system. $18K-$42K installed before ITC + SREC.

~1 min read·Updated 2026-04-23

Illinois Shines (Adjustable Block Program) compensates solar owners for Solar Renewable Energy Credits on top of federal ITC. ComEd net metering remains available at retail credit. Flat-roof 2-flats and 3-flats use ballast mounting (no roof penetration); pitched-roof single-family uses standard rails.

Frequently asked questions

What is Illinois Shines SREC? Illinois's Adjustable Block Program — pays solar owners per MWh of generation, on top of federal ITC and net metering. Lifetime value: $8K-$18K on a typical residential system.

How much does Chicago solar cost? Typical 7-8 kW system: $18K-$28K before federal ITC (30%) and SREC. Net post-incentive cost: $8K-$16K.

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Who is Baily?

Baily is named after Francis Baily — an English stockbroker who retired at 51, became an astronomer, and in 1836 described something on the edge of a solar eclipse that nobody had properly articulated before: a string of bright beads of sunlight breaking through the valleys along the moon’s rim.

He wasn’t the first to see them. Edmond Halley saw them in 1715 and barely noticed. Baily’s contribution was clarity — describing exactly what was happening, in plain language, so vividly that the whole field of astronomy paid attention. The phenomenon is still called Baily’s beads.

That’s what we wanted our AI to do. Every inbound call and text has signal in it — a homeowner’s real question, a timeline, a budget, a hesitation that means “yes but.” Baily listens to every one, 24/7, and finds the beads of light.

Baily was a businessman before he was a scientist. That’s our vibe too.