Solar panels in Collinsville, IL
See what solar could save your Collinsville home with the Ameren solar rebate, Illinois Shines incentives and $0-down options. Free, no-obligation quotes from installers serving Madison County.
Free, no-obligation quotes. Savings vary by home and utility. $0-down offers are leases or PPAs and are subject to approval.
Going solar in Collinsville with Ameren
Collinsville is in Madison County, and most homes there get their electricity from Ameren Illinois. That matters for solar, because your utility sets how you're credited for the power your panels send back to the grid and pays the state-required solar rebate.
For systems connected since 2025, Ameren credits exported power at the supply rate, so the best Collinsville systems are sized to cover what your home uses during the day. In exchange, Ameren pays about $300 per kW up front for systems with a smart inverter. See the full Ameren solar guide.
Is your Collinsville home a good fit?
- You own the home. Rooftop solar requires owning the roof.
- Your roof gets sun for most of the day on its south, west or east side, without heavy tree shade.
- Your roof has some life left. Replacing worn shingles before installing saves a removal fee later.
- Your Ameren bill is regularly over about $100 a month, or you're adding an EV or heat pump.
Not sure? A specialist can check satellite imagery of your Collinsville roof as part of your free quote.
Illinois incentives that still apply in 2026
$300/kW utility rebate
Ameren pay a one-time rebate of about $300 per kW for new systems with a smart inverter, around $2,100 on a 7 kW system.
Learn more →Illinois Shines
The state buys the renewable energy credits your panels create. Installers usually pass that value to you as a lower price.
Learn more →Net metering credits
Power you send back to the grid still earns bill credits. New systems are credited at the supply rate.
Learn more →$0-down options
With the federal homeowner credit gone, leases and PPAs can still pass along a business tax credit as a lower rate.
Learn more →
Program details last reviewed October 2026. Rules and amounts change, so confirm current terms with your installer.
How it works
- 1
Enter your ZIP
We confirm your home is in Illinois and which utility serves it.
- 2
Answer a few questions
Your typical electric bill, your roof and how you'd like to pay. It takes about two minutes.
- 3
Talk to a local specialist
An Illinois installer models your real savings, including Illinois Shines and your utility rebate. You decide what happens next.
Collinsville solar FAQ
Who is the electric utility in Collinsville, IL?
Most homes in Collinsville are served by Ameren Illinois. Some addresses near town edges may be on a municipal utility or electric co-op, so check the name on your bill.
Are there solar rebates in Collinsville?
Yes. Ameren customers in Collinsville can get a one-time rebate of about $300 per kW for new solar systems with a smart inverter, around $2,100 for a 7 kW system, plus Illinois Shines incentives.
How much do solar panels cost in Collinsville?
Cost depends on system size, equipment and how you pay. Illinois Shines and the Ameren rebate can offset a large share of the price, and leases or PPAs can bring upfront cost to $0. A free quote gives you real numbers for your Collinsville home.
Do I need a permit for solar in Collinsville?
Yes. Rooftop solar needs a building and electrical permit from your local building department (the city or Madison County), plus interconnection approval from Ameren. Your installer normally handles both.
Get a free solar quote for your Collinsville home
Free, no-obligation quote from a trusted Illinois solar partner.