Solar Panel Cost Guide in St Charles, MO (Nov 2022)

  • St Charles Solar Installation Cost: $13,108
  • 25-Year Savings: $16,178
  • Payback Period: 11.2 Years

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EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated 11/09/2022

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Average Cost of Solar Panels in St Charles

Find out what the average cost of installing solar panels is in St Charles.

The average cost of a solar system in St Charles is $3 per watt. Because a 7.2-kW system is needed to cover the energy usage of a typical home in St Charles, the average price of going solar will be about $13,108 before claiming the federal solar tax credit of 30%.

The prices above are just estimates to give you an idea of the cost of a solar panel system. The actual cost of going solar can vary depending on several factors, such as how many panels you need, your energy consumption and what installation company you go with. But, after you've paid the upfront cost of installation, the payback for most homeowners is quite rewarding, with a net average savings of about $15,000 over 20 years on energy bills.

To receive a free estimate from a highly rated solar installation company in St Charles, you can click the button below.

Solar savings over time in St Charles

Year Return on Investment
1 years $-11,937
3 years $-9,594
5 years $-7,251
7 years $-4,908
9 years $-2,565
11 years $-222
13 years $2,121
15 years $4,464
17 years $6,806
19 years $9,149
21 years $11,492
23 years $13,835
25 years $16,178

Top Solar Installers in St Charles

Although it's possible to install solar panels yourself, it requires extra labor and know-how. Because of that, most homeowners choose to hire a solar panel installer. Local solar installers can also help you optimize your return on investment by assisting with any local incentives and by providing warranties and repairs.

If you'd like to start using solar energy but still aren't certain which solar system company to go with, here are our suggestions for providers nearby:

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries (coming 2022)

Best Technology

Tesla Energy

★★★★★
4.5

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

See all of the solar companies in St Charles

Factors that Affect Solar Panel Costs in St Charles

Cost is often one of the most important factors for homeowners who are considering investing in solar. There are a few primary factors that affect your total cost in St Charles: solar equipment and system size, financing options and the solar installation company you choose. We'll go over each of these briefly below.

Solar Equipment

Size is one of the largest factors that influences the overall cost of going solar. For that reason, it's important to accurately assess the size of the solar energy system needed for your home by figuring out your typical energy use. The brand and type of equipment you choose for your solar system can raise or lower the price quite significantly. If you prefer a brand name like Tesla or SunPower, these are often more expensive than other brands. Efficiency also matters. Whether you're opting for high efficiency because you have limited roof space or just want maximum energy production, you can expect a higher equipment cost, but this can typically lead to greater savings over time. Plus, if you want additional equipment like an electric vehicle charger or solar batteries, this will also raise the cost.

Solar Financing Terms

Many homeowners find the average cost of solar in St Charles to be too costly, even if the investment pays off over time. Fortunately, nearly every solar installer in the area provides access to financing options. Solar loans drastically decrease upfront costs in most cases, but they also lead to higher prices over time due to interest. While solar loans make switching to solar energy more accessible for St Charles homeowners, they can also raise the total you pay for your system due to interest. If you put down a larger down payment, though, you can avoid paying as much in interest.

Solar Panel Installation Company

The final key cost factor you should keep in mind is the installer you choose. Given the booming popularity of sustainable energy solutions in St Charles, you'll have many options to choose from, but each comes at different price points for labor and equipment. The size of the company sometimes plays the most significant role in the cost of installation. Larger national companies, like SunPro and Sunrun, often have lower prices due to more resources and better pricing. Smaller local companies might be more costly, but they can sometimes have better customer service and more customization options, and the occasional sale or discount can bring their pricing down to compete with bigger companies.

Solar Panel Cost Data by System Size

System size Cost per system watt Solar system cost 25-Year savings Payback period
6 kW $2.69 $11,313 $12,975 11.6 years
8 kW $2.64 $14,794 $17,591 11.4 years
10 kW $2.59 $18,130 $22,351 11.2 years
12 kW $2.54 $21,321 $27,256 11.0 years
14 kW $2.49 $24,367 $32,307 10.7 years
16 kW $2.43 $27,268 $37,502 10.5 years
18 kW $2.38 $30,023 $42,842 10.3 years
20 kW $2.33 $32,634 $48,328 10.1 years

How to Save on Solar Panels

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

  • Solar Panel Brands: The model of solar panel you'd like plays a part in which installer you should opt for, since different companies provide different panels.
  • Contract: Though reading through a contract can take a lot of time, it's important to do it thoroughly so you can make sure you understand how much the equipment and services will cost and the terms of the warranty.
  • Reputation: The North American Board of Certified Energy Practitioners (NABCEP) is a respected certification organization for renewable energy professionals. If your solar panel installer is NABCEP-certified, it likely has a solid reputation and is qualified to install your solar system. Another way you can research your installer's reputation is by reading reviews.
  • Warranty: Warranties that cover panel repairs and maintenance over a long period of time such as 25 years are the best you can get in the business, and offering that kind of warranty is one indication of a good company.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries (coming 2022)

Best Technology

Tesla Energy

★★★★★
4.5

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch's St Charles, MO Solar Cost FAQs

How much does it cost to install solar panels in St Charles?

This is a difficult question to answer precisely, because the cost depends on a variety of factors. Generally speaking, it costs about $12,950 for a 5-kW system and $25,900 for a 10-kW system after the ITC is applied. It will cost more if you want other solar equipment or higher quality panels, or if you have above-average energy usage. On the flip side, you can spend less if you go with a smaller solar panel system or cheaper solar panels.

Are solar panels free in St Charles?

You can't get solar panels for free in St Charles. However, you may still be able to install 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.

Can you sell solar power back to the grid in St Charles?

The majority of states have net metering programs of some kind. Through these, you can get paid for the extra power your system produces or or receive credits to put toward future electricity 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?

The exact number of solar panels you need depends on your household energy consumption and how much sunlight your roof gets. You can 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 buy between 20 and 35 panels to account for 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.

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.

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