Solar Panel Cost Guide in O'Fallon, IL (2025 Update)
- O'Fallon Solar Installation Cost: $16,000
- 25-Year Savings: $11,532
- Payback Period: 17.3 Years
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Average Cost of Solar Panels in O'Fallon
Let’s take a look at the average cost of solar panels in O'Fallon.
The average cost of a solar panel system in O'Fallon is 4 per watt.Using this figure, a typical 6.1-kW system would cost about $16,000 before the 0 federal solar tax credit is applied.
The true cost of your system can be higher or lower than the average in O'Fallon based on a few factors, such as the brand of solar panels you choose and the solar installer you hire.But, once you've paid the upfront cost of installation, the payback for most homeowners is typically good, with a net average savings of about $14,000 over 20 years on energy bills.
For a customized quote from a local solar company that has been pre-vetted by EcoWatch, click the button below.
Solar savings over time in O'Fallon
| Year | Return on Investment |
|---|---|
| 1 years | $-15,149 |
| 3 years | $-13,448 |
| 5 years | $-11,746 |
| 7 years | $-10,045 |
| 9 years | $-8,344 |
| 11 years | $-6,643 |
| 13 years | $-4,941 |
| 15 years | $-3,240 |
| 17 years | $-1,539 |
| 19 years | $163 |
| 21 years | $1,864 |
| 23 years | $3,565 |
| 25 years | $5,267 |
Top Solar Installers in O'Fallon
Do-it-yourself solar panel installation is a choice some homeowners opt for, but it's an undertaking that can be a pain. Taking advantage of a solar panel installer can make switching to solar power much easier. The expertise that solar companies offer can be useful as well, especially if you don’t quite know what type of solar equipment would be right for your home.
If you’d like to start using solar energy but still aren’t certain which solar system company to go with, here are our recommendations for providers near you:
See all of the solar companies in O'Fallon
Factors that Affect Solar Panel Costs in O'Fallon
Though the average cost of a solar system in O'Fallon is $16,000, your final cost may be higher or lower than that. There are many factors that can have a significant impact on the cost of a solar system installation. Below are some of the more crucial things to take into consideration.
Solar Equipment
One of the most important factors to consider when it comes to the cost of adopting solar energy is the size of the solar system, which is measured in kilowatts (kW). The more energy your household uses, the larger your system will likely need to be. You can expect to pay about $3,760 per kilowatt in O'Fallon.The brand of solar panels and equipment you want is another factor that will significantly influence costs. Solar panels that have higher efficiency, like monocrystalline panels, tend to cost more. Further, solar equipment goes beyond just the solar panels themselves. You’ll also need to think about 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
For some homeowners, paying for a solar system out of pocket can be difficult. Solar loans are available from most installers in O'Fallon, which can lower, or in some cases eliminate, your upfront costs to make solar more accessible.It’s a good idea to factor the interest you’ll pay in your final cost estimate. If you can afford to put more money down upfront, you can reduce your total costs and the amount of time it’ll take to pay back the loan.
Solar Panel Installation Company
The final key cost factor you should take into consideration is the installer you choose. Given the booming popularity of green energy solutions in O'Fallon, you’ll have a great number of options to choose from, but each comes at varying price points for labor and equipment.Larger national companies generally have lower costs, but some local companies compete with them by promoting sales and discounts. While the smaller companies might not have access to specific equipment options like Tesla Powerwall batteries or extra services like electric car charger installation, they might be cheaper overall.
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 | $6,425 | 18.0 years |
| 8 kW | $3.84 | $21,477 | $8,988 | 17.6 years |
| 10 kW | $3.76 | $26,320 | $11,761 | 17.3 years |
| 12 kW | $3.68 | $30,952 | $14,745 | 16.9 years |
| 14 kW | $3.61 | $35,374 | $17,939 | 16.6 years |
| 16 kW | $3.53 | $39,585 | $21,344 | 16.2 years |
| 18 kW | $3.46 | $43,586 | $24,960 | 15.9 years |
| 20 kW | $3.38 | $47,376 | $28,786 | 15.6 years |
How to Save on Solar Panels
Since the kind of solar panels and the installer you choose has an impact on your costs and your system’s efficiency, production, and durability, 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 understand how exactly the installation process will go, as well as important factors like the project timeline.
- Warranty: A quality company rises above other companies by offering the gold standard warranty — a 25-year, all-inclusive warranty covering parts, labor and performance.
- Contract: Before signing a contract with a solar installer, make sure you look it over completely so you understand the terms. Also, ask questions if you’re not certain about some of the terms, such as what the warranty covers and what services you can expect from them.
- Solar Panel Brands: The brand of solar panel you want to install plays a part in which installer you should go with, since different companies provide different panels.
EcoWatch's O'Fallon, IL Solar Cost FAQs
How much does it cost to install solar panels in O'Fallon?
This is a difficult question to answer precisely, 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. It will be more expensive if you want other 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 opt for a smaller solar panel system or cheaper solar panels.
Are solar panels free in O'Fallon?
You can’t get solar panels for free in O'Fallon. However, you may still be able to get them on a lower budget. You can lease solar panels for a low upfront cost or, if you’d rather own your solar panels, you can finance them with a solar loan.
Is it worth going solar in O'Fallon?
Solar panels can be a fruitful investment for many homeowners, but they might not be worth it for everyone. If your home doesn't get enough sunlight and/or your electricity bills are already fairly low, solar panels might not be for you.
How long do solar panels last in O'Fallon?
Though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they should be disposed of at that time. What this means is the amount of energy they produce will have decreased significantly after that point. You can replace them after having them for that long or you can keep using them at a lower efficiency.
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.