Solar Panel Cost Guide in Willowbrook, IL (2025 Update)

  • Willowbrook Solar Installation Cost: $17,196
  • 25-Year Savings: $10,126
  • Payback Period: 19.0 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 24, 2025

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Average Cost of Solar Panels in Willowbrook

Let’s take a look at the average cost of solar panels in Willowbrook.

The national average cost of solar panels is $2.66 per watt, but in Willowbrook it’s 4 per watt.To account for the typical energy needs of the average home in Willowbrook, most homeowners require a 6.5-kilowatt system. Using the figure above, a solar installation costs around $17,196, or $24,590 before the federal solar tax credit of 0 is applied.

The true cost of your system can go above or below the average in Willowbrook based on several factors, such as the brand of solar panels you choose and the solar installer you hire.Many homeowners find adopting solar power is a fruitful investment. The average homeowner in Willowbrook can save about $13,000 on their electricity bills over 20 years.

To receive a free quote from a pre-vetted solar installation company in Willowbrook, you can click the button below.

Solar savings over time in Willowbrook

YearReturn on Investment
1 years$-16,040
3 years$-13,728
5 years$-11,415
7 years$-9,103
9 years$-6,791
11 years$-4,478
13 years$-2,166
15 years$146
17 years$2,459
19 years$4,771
21 years$7,083
23 years$9,396
25 years$11,708

Top Solar Installers in Willowbrook

DIY solar panel installation is a choice some homeowners opt for, but it's an undertaking that can take a lot of hard work. Hiring a solar company can make your swap to solar power much easier. Some solar installers, particularly local ones, can help you take advantage of incentives in Willowbrook, therefore optimizing your ROI.

There are several licensed solar professionals that can help you install your solar panels. Here are our suggestions:

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Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

See all of the solar companies in Willowbrook

Factors that Affect Solar Panel Costs in Willowbrook

The cost of installing a solar system in Willowbrook can vary by more than $10,000 from home to home. Your actual cost depends on several factors. The largest one is the size of the system your home needs, and other factors include equipment choices, financing options and the solar installer you choose.

Solar Equipment

One of the most significant factors to consider when it comes to the cost of going solar is the size of the solar system, which is measured in kilowatts (kW). The more power your household uses, the larger your system will likely need to be. You can expect to spend around $3,760 per kilowatt in Willowbrook.The kind of solar panels and equipment you want is another factor that will substantially influence costs. Solar panels that are more efficient, like monocrystalline panels, tend to come at a higher price. Plus, solar equipment is more than just the solar panels themselves. You’ll also need to decide on the kind of racks used to mount the panels, inverters, solar batteries, etc. It’s important to take all of this into consideration when researching a solar system that’s in your budget.

Solar Financing Terms

Solar panels can save you money on utility bills over time, but they can also be a big investment. That’s why many Willowbrook homeowners choose to finance their solar panel systems to make going solar more affordable.It’s a good idea to include the interest you’ll pay in your final cost estimate. If you can afford to pay a larger down payment, you can reduce your total costs and the amount of time it’ll take to pay back the loan.

Solar Panel Installation Company

The solar installer you hire to handle your switch to renewable energy can have an effect on your total costs. There are about 3 solar installation companies in Willowbrook, and each can charge varying amounts for labor and equipment.Larger national companies usually have lower costs, but some local companies undercut them by promoting sales and discounts. While the smaller companies might not have specific equipment options like Tesla Powerwall batteries or add-on services like electric vehicle charger installation, they might be cheaper overall.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.91$16,424$4,34119.8 years
8 kW$3.84$21,477$6,21019.4 years
10 kW$3.76$26,320$8,28819.0 years
12 kW$3.68$30,952$10,57818.6 years
14 kW$3.61$35,374$13,07818.3 years
16 kW$3.53$39,585$15,78817.9 years
18 kW$3.46$43,586$18,70917.5 years
20 kW$3.38$47,376$21,84117.1 years

How to Save on Solar Panels

The company that does your system installation will affect the warranties and brands available to you, and it will also have an impact on your total cost. Because choosing a company can be a tough decision, we have some tips to help you, such as:

  • Reputation: The North American Board of Certified Energy Practitioners (NABCEP) is a well-established certification organization for sustainable energy professionals. If your solar panel installer is NABCEP-certified, it most likely has a good reputation and is qualified to install your solar system. Another way you can research your installer’s reputation is by reading reviews.
  • Warranty: Companies typically offer different kinds of warranties that provide different kinds of coverage. A 25-year, all-inclusive warranty is the gold standard.
  • Contract: Read the contract terms closely to make sure you understand how much it will cost, project timeline incentives and warranties.
  • Installation Process: When going solar, it’s important to keep an open line of communication with your solar company. Confirm that you understand how the installation process works and the project completion timeline.
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Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch's Willowbrook, IL Solar Cost FAQs

What is the average cost of installing solar panels in Willowbrook?

This is a hard question to answer exactly, because the cost depends on a variety of factors. Generally speaking, it costs about $18,800 for a 5-kW system and $37,600 for a 10-kW system after the ITC is applied. You can expect to pay more if you want additional solar equipment or more efficient panels, or if you have higher-than-average energy needs. On the flip side, you can spend less if you choose a smaller solar panel system or less expensive solar panels.

Can you get solar panels for free in Willowbrook?

Solar panels aren’t free in Willowbrook, but there are some options that can make getting them more feasible, such as leasing solar panels or getting a solar loan. There may also be local programs or incentives that can further reduce the cost.

Do solar panels increase the value of your home?

Solar panels can increase the value of your home remarkably as long as you buy or finance your panels and don’t opt for a solar lease or power purchase agreement (PPA). According to research done by Zillow, the average home value increases by about 4.1% with a solar installation."

What solar power system size is right for my home?

To figure out how many solar panels you need, you need to know how much energy your home requires and how much sunlight your home gets. For a general estimate, however, since each panel can typically produce about 250 to 400 watt-hours per hour, the average house will need 20 to 35 panels.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert's opinion on the top solar companies featured here, follow this link.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.