Naperville, IL Solar Panels
In This Guide
- 01 Solar Energy in Naperville
- 02 Solar Cost Calculator
- 03 Naperville Reviews
- 04 Key Takeaways
- 05 Naperville Electricity Prices
- 06 Illinois Solar Incentives
- 07 Naperville Solar Production
- 08 Solar Installations in Naperville
- 09 Choosing an Installer
- 10 Leasing Solar Panels
- 11 Frequently Asked Questions
Solar Power in Naperville
For Naperville homeowners considering solar panel installation, the first step is understanding how a system fits your roof, electricity use, and utility bill. Illinois electricity prices rose 22% from 2020 to 2024, but that change alone does not determine whether solar is right for a home.
Our guide to home solar panels explains the basics. Here, explore the factors that shape a solar installation in Naperville, from evaluating your home to understanding how a system works.
How Much Do Solar Panels Cost in Naperville, IL?
Explore a solar installation cost estimate for your Naperville home, informed by Palmetto’s real Illinois installation data. The calculator offers a local starting point for homeowners in Naperville and nearby communities like Lisle, Aurora, and Bolingbrook, helping you understand potential costs before considering your options.
System
- No upfront investment
- Palmetto handles all maintenance
- 90% Production Guarantee
- Comprehensive protection program included
Key Takeaways
- Solar installation fit depends on your home in Naperville, including your roof, electricity use, and utility provider.
- Local estimates help make costs clearer: a typical medium-home cash system is about $28,095, with savings depending on actual use and system performance.
- Solar output changes with the seasons in Naperville, and Illinois incentives may help eligible homeowners, depending on program rules and utility service.
Naperville Electricity Prices
For Naperville households, electricity costs are one factor to consider when exploring solar installation.
From 2021 to 2024, Illinois’ average residential rate increased from 13.2¢ to 15.9¢ per kWh, about 20%; the U.S. average rose from 13.7¢ to 16.5¢. These are statewide and national figures, not Naperville-specific rates.
A solar installation can generate electricity at home, potentially reducing how much power a Naperville household buys from the grid. The impact depends on system output, energy use, and utility billing rules.
Over time, solar panels can help limit exposure to future utility-rate increases by supplying some household electricity. Actual savings vary with system performance, upfront costs, and how long the system operates.
Price of Energy: Illinois vs National Average
Naperville Area Utility Providers
In Naperville, ComEd’s 2023 electricity rate was 14.8¢ per kWh, below the Illinois average of 15.70¢ and the U.S. average of 16.0¢. These are the latest figures available here; 2024 data was not yet available.
ComEd’s rate was 0.9¢ below the state average and 1.2¢ below the national average. These broader averages are useful benchmarks, but they do not explain what drives the difference or represent every household’s specific rate.
For Naperville households, solar can generate electricity at home and may reduce grid purchases. The effect on bills depends on household use and system details, so comparing a system’s expected output with your ComEd bill can help assess its potential value.
Naperville Utilities Electricity Rates
Illinois Solar Incentives
Naperville solar projects may qualify for state and utility incentives, depending on eligibility and service area. See the solar incentives in Illinois listed below.
Options include Illinois Shines renewable energy credit contracts, income-qualified Illinois Solar for All, and solar or battery rebates for eligible ComEd or Ameren customers. Illinois also has a property-tax valuation provision for qualifying solar improvements.
For LightReach leases, Palmetto handles the commercial investment tax credit and passes savings through as lower monthly payments; lease terms determine how incentives apply.
| Incentive | Type | Description | Source |
|---|---|---|---|
| Illinois Shines (Adjustable Block Program) | Solar renewable energy credit (REC) incentive | Qualifying Illinois rooftop-solar and community-solar projects can earn REC-contract value, which may reduce a customer’s project cost or be passed through according to the customer’s contract. | Learn More |
| Illinois Solar for All (ILSFA) | Income-qualified solar incentive | Eligible households and certain nonprofits and public facilities can access qualifying solar or community solar with reduced or no upfront costs and required bill-savings protections. | Learn More |
| ComEd Distributed Generation Rebate | Utility solar rebate | Eligible ComEd residential and small-load customers may receive a rebate of $300 per kW for qualifying customer-owned renewable generation equipment. | Learn More |
| ComEd Residential Battery Storage Rebate | Utility battery storage rebate | Eligible ComEd residential customers may receive $300 per kWh of qualifying battery storage capacity, subject to utility program and tariff requirements. | Learn More |
| Illinois Solar Energy System Property-Tax Valuation | Property-tax valuation provision | Eligible Illinois solar-energy-system improvements may use an alternate property-tax valuation process, which can limit how the system’s value is reflected in an assessment but is not an automatic tax exemption. | Learn More |
Illinois Shines supports qualifying on-site solar and community-solar projects by contracting for the renewable energy credits (RECs) the systems are expected to produce. For 2026–27, the published REC prices for small distributed-generation projects up to 10 kW AC are $70.37 per REC in Group A and $80.77 per REC in Group B; eligible customer-owned small systems that do not receive a federal clean-energy credit may qualify for an additional $20 per REC. A REC represents 1 MWh of generation, so the total value depends on estimated production, location, project category, and program rules—not simply system size.
The REC payment is made to the Approved Vendor, not automatically as a household rebate. The customer’s purchase, lease, or power-purchase agreement determines whether and how much value reaches the customer; review the Illinois Shines disclosure and contract before signing. Capacity and waitlist status can change, and qualifying small-system contracts approved on or after June 1, 2026 pay 50% at energization with the remainder paid over the following six years.
Illinois Solar for All uses REC contracts with approved project vendors to make solar more affordable for eligible participants. For qualifying residential rooftop projects, the program is structured to offer no upfront cost for many 1–4-unit homes, while other eligible properties may receive low- or no-upfront-cost offers; community-solar subscriptions are also available. The customer benefit is the project pricing and required savings protections, not a standard cash payment to every household.
Residential and community-solar household eligibility is generally based on gross income at or below 80% of Area Median Income, adjusted for household size and location. Program requirements, including savings, maintenance, and warranty protections, apply, and funding and application windows are limited. Confirm current eligibility and availability through the program before relying on an offer.
ComEd’s published rebate materials list a $300-per-kW rebate for qualifying residential and small-load customer-owned renewable generation. The rebate can lower the net upfront cost of an eligible solar installation, but the amount is based on qualifying system capacity and program rules; it is not a universal payment for every solar system.
Equipment, smart-inverter, interconnection, customer-class, and tariff requirements apply. If you are on legacy full-retail net metering, taking a generation rebate may affect your delivery-service credits or legacy billing status under the applicable utility rules. Confirm the current rebate terms and the effect on your specific net-metering arrangement with ComEd in writing before applying.
ComEd’s published program materials list a storage rebate of $300 per kWh for eligible residential and small-load customers. The rebate can reduce the cost of a qualifying battery, with the payment determined by eligible storage capacity and the program’s terms. ComEd’s materials specify hourly supply service (BESH) for the residential storage rebate.
Eligible equipment, smart-inverter, customer-class, and tariff requirements apply; verify whether the battery must be paired with or charged by an on-site renewable generator under the current terms. Storage receiving a rebate on or after June 1, 2026 may also be subject to scheduled-dispatch requirements, with ComEd’s filed rider indicating service may begin no later than March 1, 2027. Confirm the obligation and any compensation with ComEd before applying.
Illinois law provides an alternate valuation process for eligible solar-energy-system improvements. A property owner may file a claim with the county chief assessment officer; depending on the system, property, and applicable assessment rules, the process can affect the assessed value used to calculate property taxes and may reduce the tax impact compared with ordinary valuation.
This is not a blanket exemption from property taxes and does not guarantee a particular dollar savings. Eligibility and the valuation calculation depend on the property and system, and the owner must follow the applicable filing process. Contact the county assessor and review the Illinois Department of Revenue guidance to determine whether your installation qualifies.
Ready to start saving with solar?
Speak with a Palmetto solar expert to find out exactly how much you can save with Illinois incentives.
Get a Free QuoteNaperville Solar Irradiance
Solar panel production varies throughout the year based on daylight hours, weather patterns, and sun intensity. Understanding how seasons affect your solar system helps set realistic expectations for your investment.
Naperville’s long summer days boost solar output, while shorter winter days, clouds, and snow can reduce it. With the right system, even seasonal Midwest weather can support solar.
Solar Production in Naperville by Month
What Can Your Solar System Power?
Summer Production (July)
In July, your 10 kW system could power:
- 3.6 average homes (15 kWh/day per home)
- or Run central AC for 18 hours AND power all other appliances
- or Fully charge 5.4 Tesla Model 3 electric vehicles
Winter Production (December)
In December, your 10 kW system could power:
- 2 average homes (15 kWh/day per home)
- or Keep your home heating system running for 15 hours
- or Fully charge 3 Tesla Model 3 electric vehicles
Annual Production
Over a year, your 10 kW system could:
- Offset 10 tons of carbon dioxide emissions
- or Equal the environmental benefit of planting 175 trees
- or Save approximately $4,234 in electricity costs
Want to know exactly how much solar can power your home?
Get a personalized solar analysis based on your actual home, energy usage, and roof characteristics.
Get My Custom EstimateSolar Panel Systems in Naperville
We’ve organized solar installation data from across the country to create this interactive map of Naperville. Explore the hexagons to see how many homes have gone solar in each area, and discover the neighbors and communities across Naperville that are making the switch.
How to Choose a Solar Installer in Naperville
Verify the license
Illinois does not have a general state contractor license. Instead, the Illinois Commerce Commission (ICC) requires certification before covered distributed-generation work—generally, the electrical wiring and connections needed to interconnect a system with the utility distribution system. Planning or project management alone is not covered, so ask which company and crew will perform each part of the work. Use the ICC distributed-generation installer page to check certification, and ask the installer to clarify any scope you cannot verify. Roofing work may separately require an IDFPR roofing-contractor license, depending on scope.
Look for certified installers
Ask whether the people handling your project hold NABCEP certifications or manufacturer certifications. NABCEP provides certification information; ask which credential an individual holds and what role it covers. For manufacturer credentials, ask which products, people, and work the credential applies to, and request documentation. Certifications can help you assess qualifications, but compare the project plan, contract, and warranties too.
Compare quotes the same way
Request itemized proposals with the same scope, so you can compare the equipment, costs, and responsibilities—not just the headline price. Check:
- System size in kilowatts (kW) and price per watt.
- Panel and inverter brands and models.
- Estimated annual production in kilowatt-hours (kWh), and what assumptions the estimate uses.
- Warranty terms for panel product and performance, inverter, workmanship, and roof penetrations.
- Who handles permits and the utility interconnection request.
- Total cost or monthly payment, plus any payment escalator.
For context, Palmetto reports a median installed system size of 9.8 kW and about 94 days from signing to installation. Those are Palmetto figures, not a promise or a universal timeline; ask each installer for its own schedule and project-specific estimate.
Permits, interconnection and your HOA
For privately funded residential work, the local government handles any required plan review, permits, and inspections; requirements vary by location. The homeowner or installer applies to the electric distribution company (EDC) serving the property. Depending on your address, the utility may be Commonwealth Edison Co, Ameren Illinois Company, MidAmerican Energy Co, or City of Springfield – (IL). Confirm which one serves you and who will submit the interconnection request. Illinois’ interconnection standard and review process are in ICC Part 466.
Illinois’ Homeowners’ Energy Policy Statement Act says an association may not prohibit or effectively prohibit a solar energy system. Design and configuration requirements are allowed within limits; they may not reduce estimated annual production by more than 10%. Review 765 ILCS 165/15 and 165/20 and discuss proposed design requirements with your HOA.
Red flags
- Pressure to sign the same day, or a large upfront deposit before you have reviewed the contract.
- A crew whose required ICC certification cannot be confirmed, or an out-of-state crew that cannot explain who will perform Illinois-covered electrical work.
- A vague production estimate or reluctance to provide the assumptions behind it.
- A promise of federal homeowner tax credits for a 2026 purchase; homeowner credits ended December 31, 2025.
If you have a concern about home-improvement work, contractor conduct, or solar sales, the Illinois Attorney General’s Consumer Protection Division is a state contact. For a complaint specifically about Part 468 certification or compliance, contact the ICC.
Palmetto is one installer you can compare, including a lease option through LightReach.
Leasing Solar Panels
Solar financing in Naperville depends on your electric utility. Palmetto’s power purchase agreement (PPA) is available to eligible ComEd customers; it is not currently available to customers served by the City of Naperville utility, where this option is listed as future.
With a PPA, you pay for the electricity your system produces at an agreed price per kilowatt-hour, so payments can vary by season. A lease instead has a set monthly payment. Learn more about buying or leasing solar.
A PPA can avoid the large upfront cash purchase, and Palmetto handles system maintenance under the agreement. That can make costs more predictable than owning the equipment and arranging repairs yourself. See LightReach details, and confirm your utility and agreement terms.
Go solar without the investment
With LightReach, there are no investment costs to recoup, loan payments to manage, or maintenance needs to take on. As soon as your panels are active, your solar savings are too!
Explore LightReach LeasingFrequently Asked Questions
Yes. Naperville’s municipal electric utility offers 1:1 net metering for eligible solar customers. Billing is calculated monthly, and extra kilowatt-hour credits carry forward to help offset electricity use in later months.
Unused credits roll over through March 31 each year. In April, remaining credits are paid out at about 4.3 cents per kWh. These rules apply to customers served by the City of Naperville utility; check your bill to confirm your electric provider.
Yes. A purchased, owned solar panel system may increase a Naperville home’s resale value. Zillow’s study found homes with solar panels sold for about 4.1% more, though this national estimate is not a guarantee for an individual home.
Actual value depends on factors such as system condition, energy savings, and buyer demand. This potential increase applies to owned systems, not leased or TPO systems; a buyer may need to assume the lease, which can affect resale differently.
In Naperville, Palmetto’s LightReach lease offers a low fixed monthly payment with no upfront cost: estimates range from $58 to $108 per month, with a typical medium-home system estimated at $79 per month.
Cash purchase is another option. The calculator estimates $21,257–$37,648, or about $28,095 for a medium home. The federal 30% residential solar tax credit is no longer available for cash purchases following the 2025 federal law change. See the calculator above for estimates by home size; actual costs vary by roof and electricity use.
In Naperville, a solar lease means the provider owns and installs the panels, while you pay a set monthly amount. A typical 9.84 kW system is estimated at $79 per month, based on Illinois production of 1,134 kWh per kW yearly and a rate of $0.085 per kWh.
Palmetto’s LightReach lease has no upfront cost. One payment covers the system, installation, monitoring, maintenance, and protection program, including a 90% Production Guarantee. Because the payment is typically below a homeowner’s current electricity bill, savings may begin on day one; utility charges for grid electricity may still apply.
Palmetto Solar is a solar installation company Naperville homeowners can consider. We’ve completed 9,050 installations across Illinois since 2020 and work with an installation network serving local communities.
The best fit depends on your roof, electricity use, utility, and payment preference. Compare system designs, total costs, warranties, and financing terms. Financing and power purchase agreement options can vary by utility, including whether your home is served by ComEd or the City of Naperville utility.
Solar panels are low maintenance for Naperville homeowners. Rain usually washes away light dust, though snow, debris, or a drop in system output may warrant attention. Avoid climbing onto the roof; monitor production and contact a qualified professional if it seems unusually low.
With LightReach, Palmetto owns the system and handles maintenance, monitoring, and repairs at no extra cost. The agreement also includes a 90% Production Guarantee.
Solar can be worth it financially when its costs are lower than the electricity it offsets. In Naperville, LightReach leases require no upfront investment, and the monthly lease payment is typically less than a homeowner’s current electricity bill, so savings can begin once the system is active.
Your actual savings depend on your roof, energy use, system production, utility charges, and lease terms. You may still receive a utility bill for electricity drawn from the grid.