- Central & Southern Illinois · 2026 -
Solar for Ameren Customers
Ameren Solar Illinois residential rates have risen significantly — central and southern Illinois homeowners are paying meaningfully more than they were just a few years ago. Whether lease, PPA, loan, cash, or battery backup is the right fit depends on your home and goals. Here’s everything Ameren customers need to know.
Central & Southern IL
Net metering
Financing options
Illinois Shines eligible
~34%
Ameren rate increase
$10,000+
Illinois Shines avg. SREC value
30%
Ameren rate increase
Net Metering
Ameren credits excess solar
- Why Ameren customers are evaluating solar
Ameren Solar Rates Have Risen More Than Any Illinois Utility
Ameren Illinois customers in central and southern Illinois have seen the steepest residential rate increases of any major Illinois utility — changed the financial case for solar compared to five years ago.
Ameren Solar residential customers are paying approximately 34% more per kWh than they were in 2019 — the largest rate increase among Illinois’s major utilities, with further adjustments pending under ICC rate cases.
~34%
Highest IL utility rate increase
Ameren's residential rates have climbed more than ComEd since 2019, making solar economics especially compelling for central and southern IL homeowners.
$100+
Where solar makes strong sense
Ameren customers paying more than $100/month see the strongest solar financial returns — especially in Springfield, Champaign, Decatur, and surrounding areas.
More slots
Illinois Shines availability
Ameren Solar territory has more Illinois Shines slot availability than ComEd territory — giving Ameren customers better access to SREC enrollment currently.
- Available in Ameren Solar territory
Ameren Solar Incentives for 2026
Three major incentives stack together for Ameren Solar customers — and Ameren territory currently has better Illinois Shines slot availability than ComEd.
- State Program
$10,000+
Ameren territory homeowners qualify for Illinois Shines — earning Solar Renewable Energy Credits that Ameren is required to purchase over a 15-year fixed contract. 2026 SREC values are proposed to increase 34–43%.
- 15-year fixed SREC purchase contract
- More slots available vs. ComEd territory
- Must own (not lease) the system
- Approved vendor installation required
- Financing
Multiple Ways to Pay
5 Options
Ameren customers can choose lease, PPA, loan, or cash purchase — each with different upfront costs, monthly payments, and long-term value. There's no single right answer for every home.
- Lease or PPA: no upfront cost, predictable payments
- Loan: own it, pay over time, SREC eligible
- Cash: own it outright, strongest long-term value
- Battery backup available with any option
- Utility Policy
Ameren Net Metering
Bill Credits
Ameren is required by Illinois law to credit residential solar customers for excess electricity returned to the grid. Under Illinois's 2026 supply-only net metering policy, credits are calculated at the supply rate.
- Required by Illinois law
- 2026 supply-only net metering rules
- Credits offset your Ameren monthly bill
- System sizing strategy matters
- Ameren advantage: Ameren territory currently has more Illinois Shines enrollment slot availability than ComEd territory. For homeowners who have been waiting, Ameren territory is a favorable window to enroll — but slots are still finite and fill over time.
- Honest guidance for Ameren customers
Does Solar Make Sense for Your Ameren Home?
Solar is a strong fit for many Ameren customers — but it depends on your specific home, roof, and financial situation. Here’s how to think about it honestly.
Ameren customers in central and southern Illinois who have south-facing roofs, monthly bills above $100, are among the strongest solar candidates in the state. The combination of Ameren’s repeated rate increases, Illinois Shines SRECs, and net metering – paired with the right financing option – creates a compelling case for taking control of energy costs.
- Strong Ameren Solar Candidates
- Monthly Ameren bill consistently above $100–$150
- South, southwest, or southeast-facing roof
- Roof in good condition — 10+ years remaining
- Minimal shading from trees or neighboring structures
- Open to comparing lease, PPA, loan, and cash options honestly
- Clarity on your financing preference (own vs. lease/PPA)
Ameren Customer Savings
Avg. monthly Ameren bill
$150/mo
Est. annual bill savings
$1,260
Illinois Shines SREC value
$10,000+
No upfront cost option
Lease / PPA
Typical payback period
6–9 years
Est. 25-year savings
$31,500+
- Next steps for Ameren customers
How Ameren Customers Should Get Started
The right approach for Ameren customers in 2026 — before calling any installer.
Free Ameren Energy Review
Get a free independent review specific to your Ameren address - covering your rate tier, Illinois Shines slot availability, all financing options (lease, PPA, loan, cash, battery), and whether solar makes financial sense for your home.
- Free · No obligation
Review Your Ameren Solar Report
You receive a written Solar Report comparing all financing options for your Ameren home - estimated bill savings, Illinois Shines SREC projection, net metering analysis, and a clear recommendation - including if solar doesn't make sense for your home right now.
- Written report delivered
Connect with Vetted Ameren Installers
If solar makes sense, we connect you with vetted Illinois Shines approved installers experienced in Ameren territory - including proper net metering setup and Ameren interconnection process. You'll negotiate from a position of knowledge.
- Illinois Shines approved vendors
- Related Resources
Keep Exploring
Illinois Solar Guide
The complete Illinois solar guide — incentives, savings, programs, and how to get started.
Illinois Shines
How Illinois Shines SRECs work, what they're worth, and how to enroll before slots fill.
ComEd Solar
Solar guide for ComEd customers in northern Illinois and the Chicago metro area.
Battery Backup
Home battery storage incentives, honest guidance, and whether battery makes sense for your home.
Ready to see your actual numbers?
Free Illinois Solar Report – personalized to your home, your utility, and your situation.
