Cox Solar Solutions · Illinois & St. Louis
Solar Panel Installation for Illinois Homes
Own your power with a system designed around your roof, your usage, and your utility's rules.
Equipment we install
- Tier-1 Solar Panels
- Enphase Microinverters
- Tesla, Enphase, SolarEdge & Duracell Batteries
- Smart Electrical Panels
Solar Panels
Solar Designed for the Way Illinois Homes Use Energy
Every Cox Solar system starts with your actual 12-month electric usage, a detailed look at your roof, and shading analysis — not a one-size-fits-all package. We size the system to offset as much of your bill as makes sense under today's Illinois net metering rules, then show you the numbers in plain language.
We handle the entire project: engineering, permits, Illinois Shines REC paperwork, your utility's Distributed Generation Rebate, interconnection with ComEd or Ameren, installation, and final inspection.
Why Cox Solar
Benefits of Solar Panels
Lower Electric Bills
Offset the supply portion of your bill with power you produce on your own roof.
Incentives Filed for You
Illinois Shines REC payments and your utility's $300/kW rebate, handled start to finish.
Built for Illinois Weather
Racking and layouts engineered for snow load, wind, and freeze-thaw cycles.
Real-Time Monitoring
Track production panel by panel from your phone.
What's Included in Every Installation
One crew, one point of contact, and one warranty from design through activation.
- Site survey, roof assessment, and shading analysis
- Custom system design and structural engineering
- Municipal permits and HOA paperwork
- Illinois Shines application through an Approved Vendor
- ComEd or Ameren Distributed Generation Rebate application
- Utility interconnection and net metering setup
- Professional installation and final inspection
- Production monitoring and system activation
Does Solar Still Make Sense in Illinois?
For many homeowners, yes. Illinois Shines pays for the renewable energy credits your system produces, ComEd and Ameren pay a one-time $300-per-kW rebate for smart-inverter systems, and the state lets you keep your home's assessed value from rising because of solar.
Net metering changed for new customers in 2025 — exported energy now earns supply-only credits — so system sizing and battery decisions matter more than they used to. We model your savings using the current rules, not the old ones.
Illinois Incentives
Illinois Programs That Lower Your Cost
- $300per kW
ComEd & Ameren solar rebate (smart inverter)
- $300per kWh
Utility battery storage rebate
- 15years
Illinois Shines REC contract
- 50%upfront
Of small-system REC value paid at energization
FAQ
Solar Panels Questions
How long does a solar installation take in Illinois?
Installation itself usually takes one to three days. The full timeline — design, permitting, Illinois Shines and utility approvals, and interconnection — commonly runs 6 to 12 weeks depending on your city and utility.
Do solar panels work in Illinois winters?
Yes. Solar panels produce power from light, not heat, and cold temperatures actually improve panel efficiency. Snow typically slides off tilted panels within a day or two of sunshine, and annual production is what drives your savings.
Will solar raise my property taxes?
Illinois allows homeowners to request an alternate valuation (form PTAX-330) so the solar system doesn't increase their assessed value. We'll point you to the form after installation.
How big of a system do I need?
It depends on your annual usage, roof space, and goals. Most Illinois homes fall in the 6–12 kW range. We size from your actual utility bills so you don't overbuild for today's supply-only net metering.
More Services
Explore Other Solutions
Battery Storage
Duracell, Enphase, SolarEdge, and Tesla home batteries, installed with new solar or added on their own to the solar system you already have.
Learn more →
Solar Roofing
Replace an aging roof and go solar in one coordinated project — one crew, one schedule, one warranty.
Learn more →
Solar Pergolas
Shade structures, pergolas, and carports topped with solar — ideal when your roof is shaded or limited.
Learn more →
Free solar quote
Get Your Free Customized Solar Plan
See your system design, Illinois incentives, and estimated savings — no pressure, no obligation.