Solar Panel Cost Guide in Oak Brook, IL (2025 Update)
- Oak Brook Solar Installation Cost: $17,196
- 25-Year Savings: $10,126
- Payback Period: 19.0 Years
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Average Cost of Solar Panels in Oak Brook
Find out how much it might cost to install solar panels in Oak Brook.
While the national average of solar panels is $2.66 per watt, solar panels in Oak Brook generally cost about 4.The average solar panel system size in Oak Brook is around 6.5 kilowatts, meaning a cost of about $17,196 for a solar installation, or $24,590 before the 0 federal solar tax credit is applied.
How much you pay can be above or below the average in Oak Brook based on a variety of factors, such as the brand of solar panels you choose and the solar company you hire.With average savings of about $13,000 on power bills over 20 years, many homeowners in Oak Brook find investing in solar can pay off big.
For a free quote from a local solar installer that has been pre-vetted by the EcoWatch team, click the button below.
Solar savings over time in Oak Brook
| Year | Return 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 Oak Brook
Do-it-yourself solar panel installation is a possibility, but it's an undertaking that can use up a lot of your time and energy. Going with a solar company can make converting to solar power much easier. Solar companies offer key benefits that can help you maximize your investment, like warranties, monitoring and free repairs.
Working with a vetted solar installer can make going solar easier. Here are our recommendations:
See all of the solar companies in Oak Brook
Factors that Affect Solar Panel Costs in Oak Brook
Though the average cost of a solar system in Oak Brook is $17,196, your actual cost may be higher or lower than that. There are quite a few factors that can have a sizable impact on the cost of a residential solar panel installation. Below are some of the more crucial things to consider.
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 electricity your household consumes, the larger your system will likely need to be. You can expect to spend around $3,760 per kilowatt in Oak Brook.The kind of solar panels and equipment you choose is another factor that will significantly affect costs. Solar panels that are more efficient, like monocrystalline panels, tend to be more expensive. Moreover, solar equipment goes beyond 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 searching for a solar system that’s in your budget.
Solar Financing Terms
Many homeowners find the average cost of solar in Oak Brook to be too expensive, even if the investment pays off over time. Thankfully, nearly every solar installer in the area provides access to financing options. Solar loans greatly decrease upfront costs in most cases, but they also lead to higher prices over time due to interest.However, the interest on solar loans also increases your total costs, so it’s important to include that in your estimate as well. You can always lower the total you pay in interest and sometimes even your APR by putting more money down.
Solar Panel Installation Company
The solar company you select will impact your total cost to adopt solar power. Different companies will bill different amounts for the equipment and labor.Companies that only sell high-quality, high-efficiency and high-price products — like Maxeon solar panels from SunPower or Tesla Powerwall batteries — so choosing those installers will generally come at a higher cost. It’s best to do some research and decide on the company that offers the products, warranties and services you want and also fits within your budget.
Solar Panel Cost Data by System Size
| System size | Cost per system watt | Solar system cost | 25-Year savings | Payback period |
|---|---|---|---|---|
| 6 kW | $3.91 | $16,424 | $4,341 | 19.8 years |
| 8 kW | $3.84 | $21,477 | $6,210 | 19.4 years |
| 10 kW | $3.76 | $26,320 | $8,288 | 19.0 years |
| 12 kW | $3.68 | $30,952 | $10,578 | 18.6 years |
| 14 kW | $3.61 | $35,374 | $13,078 | 18.3 years |
| 16 kW | $3.53 | $39,585 | $15,788 | 17.9 years |
| 18 kW | $3.46 | $43,586 | $18,709 | 17.5 years |
| 20 kW | $3.38 | $47,376 | $21,841 | 17.1 years |
How to Save on Solar Panels
Since the type of solar panels and the installer you choose significantly affects your costs and your system’s durability and efficiency, it’s important to pick the right ones for you. Here are some things to keep in mind to help with your decision:
- Installation Process: Homeowners should make sure they know how exactly the installation process will be carried out, as well as important factors like the project timeline.
- Solar Panel Brands: Not all solar companies carry the same brands of solar panels, so the brand and type of panel you want can play a significant role in the company you go with.
- Reputation: Make sure your solar installer has a good reputation by confirming it has certifications and licenses, checking how long it's been in business and reading reviews by previous customers and solar experts like EcoWatch.
- Warranty: An all-inclusive, long-term warranty can help keep your solar panels running smoothly and save you money on repairs and maintenance.
EcoWatch's Oak Brook, IL Solar Cost FAQs
What is the average cost of installing solar panels in Oak Brook?
The average cost of solar panels in Oak Brook is about $18,800 for a 5-kW system and $37,600 for a 10-kW system before the ITC, but the real cost will depend on certain factors like the model of solar panels you want, what size system you need and how much energy you consume.
Are solar panels free in Oak Brook?
Solar panels aren’t free in Oak Brook, but there are some options that can make getting them more viable, such as leasing solar panels or getting a solar loan. There may also be local programs or incentives that can further reduce the cost.
Does Oak Brook have a net metering program?
The majority of states have net metering programs of some kind. Through these, you can either receive compensation for the extra power your system generates or or receive credits to put toward future utility bills. Currently there are just three states that don’t have any net metering laws: Alabama, Tennessee and South Dakota.
How many solar panels should I get to power my home?
To figure out how many solar panels you need, you should find out 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 household 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.