Solar Panel Cost Guide in St. John, MO (2025 Update)
- St. John Solar Installation Cost: $17,060
- 25-Year Savings: $18,719
- Payback Period: 13.4 Years
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Average Cost of Solar Panels in St. John
Find out how much it might cost to go solar in St. John.
The average cost of a solar panel system in St. John is 3 per watt.The average solar panel system size in St. John is around 7.2 kilowatts, meaning a cost of about $17,060 for a solar installation, or $24,396 before the 0 federal solar tax credit is applied.
These figures are only estimates, and the cost of going solar for you will look different based on factors unique to your home and what company you go with.With typical savings of about $17,000 on energy bills over 20 years, many homeowners in St. John find investing in solar can be quite rewarding.
To receive a free estimate from a vetted solar company in St. John, you can click the button below.
Solar savings over time in St. John
| Year | Return on Investment |
|---|---|
| 1 years | $-15,769 |
| 3 years | $-13,188 |
| 5 years | $-10,607 |
| 7 years | $-8,026 |
| 9 years | $-5,445 |
| 11 years | $-2,864 |
| 13 years | $-283 |
| 15 years | $2,298 |
| 17 years | $4,880 |
| 19 years | $7,461 |
| 21 years | $10,042 |
| 23 years | $12,623 |
| 25 years | $15,204 |
Top Solar Installers in St. John
When making the switch to solar, many homeowners choose to go with a solar installation company since handling can be a difficult project. Also, if you’d like to maximize your investment in solar, going with a solar company can help with that as well. Different providers can offer warranties, expertise on solar panel installation and sometimes even information on local incentives, rebates and net metering programs.
If you’d like to go solar but still aren’t certain which solar system installer to go with, here are our recommendations for providers nearby:
See all of the solar companies in St. John
Factors that Affect Solar Panel Costs in St. John
For many St. John homeowners, the decision to adopt solar energy comes down to cost. However, the range of solar installation costs can be quite wide in St. John, with typical prices between $20,000 to $40,000. There are a number of factors that greatly influence the price you’ll pay, which we'll go over below.
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 about $3,370 per kilowatt in St. John.There are many different solar panel brands and the one you choose also changes the cost. Generally, the brands that offer higher efficiency tend to also cost more. In addition, the type of equipment you want to install can affect your total cost. If you only need panels, your system will be far less expensive than if you also need solar batteries or an electric vehicle charger.
Solar Financing Terms
Solar panels can save you money on utility bills over many years, but they can also be a big investment. That’s why many St. John homeowners decide to finance their solar panel systems to make going solar more affordable.However, the interest on solar loans also increases your total costs, so it’s vital to consider that as well. You can always reduce the total you pay in interest and sometimes even your APR by making a larger down payment.
Solar Panel Installation Company
A final consideration when trying to evaluate the cost of solar for your home or business in St. John is the company you hire to install your PV system. Similar to choosing a company to build a deck or pool, for example, there’s no shortage of solar installers that provide a range of services at different price points.Companies that only sell products with high efficiency and therefore a higher price point — 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 find a company that offers the products, warranties and services you’re looking for 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 | $3.50 | $14,720 | $11,688 | 13.9 years |
| 8 kW | $3.44 | $19,249 | $15,962 | 13.7 years |
| 10 kW | $3.37 | $23,590 | $20,424 | 13.4 years |
| 12 kW | $3.30 | $27,742 | $25,075 | 13.1 years |
| 14 kW | $3.24 | $31,705 | $29,915 | 12.9 years |
| 16 kW | $3.17 | $35,479 | $34,943 | 12.6 years |
| 18 kW | $3.10 | $39,065 | $40,160 | 12.3 years |
| 20 kW | $3.03 | $42,462 | $45,566 | 12.1 years |
How to Save on Solar Panels
The company that does your solar panel installation will affect the warranties and brands you have access to, and it will also have an impact on your total cost. Because choosing a company can be difficult, we have some tips to help you, such as:
- Reputation: Make sure your solar panel installer has a good reputation by verifying it has certifications and licenses, checking its work history and reading reviews by past customers and solar experts like EcoWatch.
- Solar Panel Brands: Homeowners will have different preferences for panels based on their locations and how much efficiency they need. While there are many options for which kind of solar panel you can get, not every company will have access to the exact one you may want or need, so be sure to take a look at their list of offerings before making your decision.
- Warranty: Warranties that cover panel repairs and maintenance over a couple decades are the best you can get in the business, and offering that kind of warranty is one sign of a good company.
- Contract: It’s important to read your solar installer’s contract closely to understand what services they will provide, what the warranty covers and what you can expect about the installation process.
EcoWatch's St. John, MO Solar Cost FAQs
What is the average cost of installing solar panels in St. John?
This is a tough question to answer precisely, because the cost depends on many factors. Generally speaking, it costs about $16,850 for a 5-kW system and $33,700 for a 10-kW system after the ITC is applied. It will be more expensive if you want other solar equipment or higher quality panels, or if you have above-average energy needs. On the other hand, you can spend less if you want a smaller solar panel system or cheaper solar panels.
Can you get solar panels for free in St. John?
A solar panel system isn’t free in St. John, 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.
Can solar panels significantly reduce my power bills?
Solar panels can potentially eliminate your electricity bills depending on your location and the efficiency of your system. Even if it doesn’t get rid of them completely, you can save a lot of money on your bills, about $880.28 per year.
What solar power system size is right for my home?
The exact number of solar panels you need depends on your household energy needs and how much sunlight your roof gets. You can take a look at your energy bills for the past year to get an idea of the solar system size you'll need. The average household has to install between 20 and 35 panels to cover their typical energy usage.
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.