See the numbers before the sales pitch.
Enter your address, roof details, and electric bill. Get a transparent solar feasibility analysis — system sizing, 25-year cash flow, and every Illinois incentive — in under 60 seconds.
A financial report, not a marketing pitch.
Every calculation is sourced. Every assumption is editable. Nothing is inflated for conversion.
Right-sized system
Roof-constrained or consumption-capped system sizing at 400 W panels using PVWatts production factors.
25-year cash flow
NPV, IRR, LCOE, and payback. Cash purchase and solar-loan scenarios side by side.
Federal + Illinois stack
Illinois Shines RECs, $300/kW DG Rebate, Smart Solar Billing, property & sales tax exemptions. Federal ITC for commercial only (residential ended Dec 2025).
Transparent methodology
Every number links to its source: NREL PVWatts, DSIRE, Illinois Shines, utility tariffs.
From roof to meter to grid.
Your PV array feeds an inverter that matches your home's load. Any surplus rolls onto the utility meter — credited at retail rate under Illinois net metering.
Build your preliminary analysis.
Where is the property?
Used for solar irradiance, utility lookup, and installer matching.
Illinois IOUs, municipals, and rural cooperatives. Pick the provider listed on your bill.
Commercial includes MACRS depreciation & different rate schedule.
Your inputs stay on your device. No account required for preliminary analysis.