Solar Panel Cost Guide in St. Peters, MO (2024 Update)

  • St. Peters Solar Installation Cost: $17,066
  • 25-Year Savings: $16,170
  • Payback Period: 14.6 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 03, 2024

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 St. Peters

See how much it might cost to make the switch to solar in St. Peters.

While the national average of solar panels is $2.66 per watt, solar panels in St. Peters typically cost around 3.Because a 7.2-kW system is needed to cover the energy usage of a typical home in St. Peters, the average price of going solar will be about $17,066 after claiming the federal solar tax credit of 0.

Remember that the numbers above are only averages. The price you’ll pay for solar may vary based on your household energy consumption, the type of solar panels you choose, your solar contractor and more.But, after you've paid the initial cost of installation, the return on investment for most homeowners is usually rewarding, with a net average savings of about $15,000 over 20 years on power bills.

To calculate your potential ROI and connect with a local solar company, click the button below.

Solar savings over time in St. Peters

YearReturn on Investment
1 years$-15,776
3 years$-13,194
5 years$-10,613
7 years$-8,032
9 years$-5,451
11 years$-2,870
13 years$-289
15 years$2,292
17 years$4,874
19 years$7,455
21 years$10,036
23 years$12,617
25 years$15,198

Top Solar Installers in St. Peters

Although it's possible to install solar panels by yourself, it involves extra time and expertise. That's why most people choose to go with a solar panel installer. Another great thing about choosing a vetted solar installer is that it'll provide warranties and free repairs, which help protect your solar system over time.

If you’d like to go solar but still aren’t sure which solar system installer to go with, here are our recommendations for providers near you:

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

Best Technology

Tesla Energy

★★★★★
3.2
  • 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. Peters

Factors that Affect Solar Panel Costs in St. Peters

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

Solar Equipment

One of the most significant factors to consider when it comes to the cost of installing solar panels 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 pay about $3,370 per kilowatt in St. Peters.The brand and kind of equipment you want for your solar system can increase or decrease the price quite significantly. If you prefer a trusted 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 a small roof 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

For some homeowners, paying for solar panels out of pocket can be challenging. Solar loans are available from most installers in St. Peters, which can bring down, or in some cases completely eliminate, your upfront costs to make solar more affordable.Although solar loans make switching to solar energy more accessible for St. Peters homeowners, they can also add to the total you pay for your system due to interest. If you make a larger down payment, though, you can cut back on how much interest you have to pay.

Solar Panel Installation Company

The solar panel installation company you choose will affect your total cost to make the switch to solar . Different companies will charge different amounts for the equipment and labor.You may notice national solar installers that have lower prices because of their larger brand name and access to bulk prices, or you might see small, local installation companies offering deals or promotions to compete with those major players.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.50$14,720$9,56815.2 years
8 kW$3.44$19,249$13,13514.9 years
10 kW$3.37$23,590$16,89114.6 years
12 kW$3.30$27,742$20,83514.3 years
14 kW$3.24$31,705$24,96814.0 years
16 kW$3.17$35,479$29,29013.7 years
18 kW$3.10$39,065$33,80113.4 years
20 kW$3.03$42,462$38,50013.1 years

How to Save on Solar Panels

Since the kind of solar panels and the installation company you choose has an impact on your costs and your system’s efficiency, production, and durability, it’s important to select the right ones for you. Here are some things to keep in mind to help with your decision:

  • Warranty: An all-inclusive, 25-year warranty can help keep your solar panels running for years to come and save you money on repairs and maintenance.
  • Installation Process: Homeowners should understand how exactly the installation process will go, as well as important factors like the completion timeline.
  • Solar Panel Brands: Not all solar companies have the same brands of solar panels, so the brand and type of panel you want can play a large role in the company you choose.
  • Contract: Before you sign a contract with a solar company, make sure you read it through completely so you understand the terms. Also, ask questions if you’re unsure about some of the terms, such as what to do if a component breaks or malfunctions and what services you can expect from them.

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

Best Technology

Tesla Energy

★★★★★
3.2
  • 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. Peters, MO Solar Cost FAQs

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

This is a tough question to answer precisely, because the cost depends on a few different factors. Broadly 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 cost more if you want additional solar equipment or more efficient panels, or if you have above-average energy usage. Conversely, you can spend less if you opt for a smaller solar panel system or cheaper solar panels.

Can you get solar panels for free in St. Peters?

A solar panel system isn’t free in St. Peters, 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 how much your home is worth?

Solar panels can increase your property’s value remarkably as long as you buy or finance your panels and don’t choose a solar lease or power purchase agreement (PPA). According to research done by Zillow, the average home value increases by about 4.1% after installing a solar system."

How often do you have to replace solar panels?

On average, the lifespan of solar panels is about 25 to 30 years. Some even last up to 50 years, but their efficiency decreases by about 0.8% each year. You can choose to replace them sooner if you want to maintain a larger amount of energy production.

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.