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  • Written by
    Max Peterson
  • Fact Checked
  • Updated

With St. Louis' clear skies and below-average rainfall, it's a perfect area for families and businesses aiming to harness the added sunlight by buying panels from one of the best solar installers. While going solar comes with upfront costs, local homeowners could ultimately save $870 per kilowatt on their electric bills. A professional installation team can help you choose the best panels to maximize your savings. On this page, we'll show you St. Louis' leading solar installers and offer valuable advice for your solar journey.

Most Reputable
Blue Raven Solar logo
4.4/5

Ratings are based on our detailed proprietary methodology and review standards.

  • Offers high-efficiency panels and storage options
  • Provides unique in-house financing options
  • Recognized as one of the most reputable solar companies

8 Best Solar Companies in St. Louis

Brands are algorithmically curated from a database of local service providers near you. We require a minimum number of Google reviews and average ratings for provider inclusion.

Top Rated Provider
Top Rated

Streib Company

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 336 reviews


9225 Watson Industrial Park, St. Louis, MO 63126

(314) 487-7474

streibco.com

Astrawatt Solar

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 35 reviews


222 S Meramec Ave Suite 202-1100, St. Louis, MO 63105

(877) 937-4786

www.astrawatt.solar
EFS Energy Logo

EFS Energy

4.4/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 31 reviews


1283 Research Blvd, St. Louis, MO 63132

(314) 771-5131

efsenergy.com
StraightUp Solar of St. Louis Logo

StraightUp Solar of St. Louis

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 55 reviews


11696 Lilburn Park Rd, St. Louis, MO 63146

(314) 218-2663

straightupsolar.com/st-louis-city-cou...

Pyramid Electrical Contractors, Inc.

3.9/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 20 reviews


300 Monticello Pl, Fairview Heights, IL 62208

(618) 632-1180

www.pyramidelectrical.com

Route 66 Solar

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 120 reviews


2110 Troy Rd Suite B1, Edwardsville, IL 62025

(618) 900-1280

route66solar.com
SunSent Solar Logo

SunSent Solar

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 49 reviews


1710 Scherer Pkwy, St Charles, MO 63303

(636) 757-3083

www.sunsent.com
Helio Solar Power, LLC. Logo

Helio Solar Power, LLC.

4.3/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 27 reviews


119 S Main St, St Charles, MO 63301

(888) 424-3546

www.heliosolarpower.com

Ranking Methodology

Our team used the following criteria to determine the best St. Louis solar companies.

  • Service offerings and warranties: Solar providers should stand behind their equipment and services with warranties. We evaluated how each contractor responds to issues and warranty claims, focusing on timeliness and customer satisfaction.
  • Educational programs and business model: Solar technicians must be good teachers. They should tap into their years of experience answer your questions on how to maintain your system and maximize its performance.
  • Customer reviews and feedback: Most St. Louis solar contractors have both favorable and unfavorable reviews. However, a good review ratio demonstrates a company's reliability and responsiveness to issues.
  • Panel brands and quality: The premier solar companies remain current on new technology, offering equipment from cutting-edge and trustworthy manufacturers.
  • Professional licenses and credentials: Each contractor on our list complies with state and city licensing requirements and keeps current with industry best practices. Many of them have served the St. Louis community for over 15 years.

Facts about St. Louis

  • Average Max Temperature:
    65°F
  • Solar Payback Period:
    14 years
  • Average Daily Sunlight:
    55%
  • Homes Powered by Solar:
    818
  • Average Annual Energy Bill:
    $1,291
  • Solar Power per Capita:
    36.0%

Benefits of Solar Energy

Solar energy has numerous advantages that will enhance your home for years to come.

  • Better energy independence: Photovoltaic solar panel systems with battery storage systems function through blackouts and emergencies, and you won't have to rely on the power grid for your safety and well-being.
  • Reduced carbon footprint: Solar is a highly abundant clean energy source, meaning you can minimize or conquer your home's dependence on "traditional" sources.
  • Smaller power bills: Generating some or all of your own power will save you money on your electric bills long-term. Plus, some states offer net metering programs that enable you to sell your unused energy back to the grid, generating additional credits toward your energy bill.

What Solar Incentives Are Available to St. Louis Homeowners?

Missouri homeowners who upgrade to solar could qualify for special financing, rebates, reimbursements and tax credits. Here are just a few of the region's incentive programs.

Incentive Type:Rebate Program

Website:http://www.powermoves.com/my-home/

Incentive Amount:

Dual Fuel Heat Pump: $500
Variable Speed Pool Pump: $250
Air-Source Heat Pump: $250 - $750
Geothermal Heat Pump: $1,500
Heat Pump Water Heater: $400/unit
HVAC: Varies depending on ZIP code. See program website

How To Choose the Best Solar Company in St. Louis

The more thorough your provider search is, the better your solar panels will ultimately function. Here are some important factors to consider while searching for a solar provider.

Licensing and Training

In Missouri, it's the responsibility of counties and cities issue contracting licenses. However, all contractors must register with the Missouri Secretary of State. You should also visit a company's website to learn about its private certifications. Two of the most recognized are the PV Installation Professional and Solar Heating Installer certificates, awarded by the North American Board of Certified Energy Practitioners (NABCEP). Some companies don't publish this information online, so you should also ask your estimator about them.

Cost of Solar Panels in St. Louis

The type of solar panels you select dictates how much energy you can generate. Monocrystalline panels and high-quality and give you the best performance but cost more upfront. Polycrystalline panels work with a tried-and-true mechanism and cost less, but produce less power. Thin-film panels aren't the best for large residential installations, but they are excellent accessories for non-traditional roofs.

Additional accessories, such as battery storage and electric vehicle (EV) chargers, will raise your overall installation costs. However, they might make your solar system more efficient and convenient to use. Not every solar provider offers these extras, so look for a contractor that installs them if it's essential for you.

You can expect to pay about $16,850 on average for a five-kilowatt solar energy system in St. Louis. Check the table in this section to get an idea of the amount St. Louis solar companies might quote for your specific solar system's price.

Solar Panel CostAverage Cost
Solar Monocrystalline$1,102
Solar Polycrystalline$860
Thin-Film$503
Solar Battery$705
Solar Home EV Charger$2,645

Financing Solar Energy in St. Louis

There are a plethora of ways to pay for new solar panels, and the right one will lower your costs. A few of the most common options include leases, power purchase agreements (PPAs), loans, and cash payments. Though it involves a large up-front payment, cash is the most affordable choice because it qualifies you for solar incentives and doesn't accrue interest. Solar loans are the second most effective option. As with a car or home loan, you'll pay a monthly rate towards system ownership, including interest. You can still apply for money-saving solar incentives, and depending on your lender, you could put as little as $0 down. Solar leases allow you to use your panels for a set monthly rate, while PPAs let you pay only for the energy you use, much like an electric bill. Both options disqualify you for solar incentives and don't grant you system ownership. Solar experts generally don't recommend them, but they might be suitable in some cases. Look for providers that offer several payment plans to find the right fit for your wallet.

The table below lists the average payback periods for different capacities of solar systems in St. Louis.

You are eligible for a 26% federal solar tax credit for new solar energy devices until the year 2032. City and state officials and utility companies might also offer discounts, rebates, and unique financing solutions that could save you more.

Solar System CapacityEstimated Payback period
1 kW2.3 years
2 kW4.5 years
5 kW11.3 years
10 kW22.7 years

Frequently Asked Questions about Solar in St. Louis

Sources

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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