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The 4 Best Solar Companies in Pennsylvania (2024 Guide)

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Palmetto tops our list of solar companies in Pennsylvania due to its excellent efficiency. See how it compares to other providers in the Keystone State.

Author Image Written by Tamara Jude + 1 other Reviewed by Roger Horowitz Updated 06/28/2024

According to the Solar Energy Industries Association (SEIA), Pennsylvania has roughly $3.9 million invested in solar energy and more than 200 solar installers to choose from. With that many options, we’ve spent over 770 hours researching and rating the industry’s best solar companies to help homeowners find the top options in their state. Our highest-rated solar company in Pennsylvania is Palmetto, which has above-average customer support and largely positive customer reviews. 

If Palmetto isn’t right for you, we’ve included our takes on three other solar power providers in Pennsylvania and their solar incentives and average costs. 

Key Takeaways

  • The best solar company in Pennsylvania is Solar Energy World. Our findings are based on a synthesis of user reviews, expert interviews, and a survey of 1,000 homeowners.
  • Pennsylvania is one of 34 states to offer net metering, which allows homeowners to sell back excess energy produced by their solar systems for a credit on their utility bills.
  • The average solar system in Pennsylvania costs $29,573 before applying any solar incentives and $20,701 after accounting for the federal solar tax credit. Pennsylvania also offers alternative energy credits to save solar owners over $240 annually.

Compare Solar Companies Across Pennsylvania

We scored solar companies in Pennsylvania using our rating methodology to determine which provides the best all-around services and products. Palmetto and Sunrun earned the highest scores due to their panel selection, performance, and customer reviews.

Company Star Rating Warranties Payment Options Link
4.4
25–30 years Full purchase, loan, lease, PPA GET QUOTE
4.4
25 years Full purchase, loan, lease, PPA GET QUOTE
4.5
10–25 years Full purchase, loan, lease, PPA GET QUOTE
No results were found.

Pennsylvania’s Top Solar Energy Companies

We most recommend the following Pennsylvania solar companies due to their high scores against our 100-point methodology:

Best East Coast Installer: Solar Energy World
Best Solar Panel Installation: Momentum Solar
Best Solar Panel Leasing: Sunrun

Our Top Solar Company Picks

Solar Energy World Best East Coast Installer
4.4

Solar Energy World’s inventory includes solar panels from three popular manufacturers: Silfab, LONGi Solar, and Q Cells. The company also sells solar batteries from Tesla, Enphase, and SolarEdge, and inverters from Fronius, Enphase, and SolarEdge. That’s a wide product selection compared to many leading solar brands.

Roughly 11% of our surveyed solar users chose Solar Energy World for their installation.

How We Scored Solar Energy World

Solar Energy World earned 4.4 out of 5 stars based on our rating scale. Here’s a look at how it did in each category:

  • Solar equipment and services (18 out of 25 points): Solar Energy World lost points for not offering EV chargers or roofing services. 
  • Warranty and performance guarantee (19 out of 25 points): The brand lost points for not providing a power production guarantee. 
  • Reputation and certifications (15 out of 15 points): Solar Energy World earned full points for its BBB rating and industry certifications. 
  • Financing options (13.5 out of 15 points): We deducted points for outsourced financing.
  • Industry experience (8 out of 10 points): While Solar Energy World isn’t new to the industry, it has nearly 15 years of experience. 
  • State availability (6 out of 10 points): The company is operable in fewer than 10 states.
Pros and Cons
Pros Has a diverse panel and inverter brand selection Offers a 30-year manufacturer’s warranty Has excellent customer reviews Cons Doesn’t conduct energy audits Doesn’t offer company-level power production coverage Doesn’t have weekend customer service hours
Warranty and Financing

Warranty

The company offers all customers a 30-year manufacturer’s warranty on all purchased solar panels and inverters.

Financing Options

✔ Full purchase
✔ Loan
✔ PPA

Reputation and Awards

Solar Energy World has an A+ rating with BBB and 4.5 out of 5 stars from customers on the site. The company also has mostly positive customer reviews on Yelp and Angi’s List. Solar Power World put the provider on its 2021 Top 400 Solar Contractors list, ranking it at No. 17.

Momentum Best Installation Process
4.4

A primary reason we chose Momentum Solar is because it handles installations in-house. Fewer parties often means better communication, fewer delays, and one project management team overseeing paperwork, permits, and building code requirements. We also like that Momentum is certified by North American Board of Certified Energy Practitioners (NABCEP)  and has a mobile app for system performance monitoring.

How We Scored Momentum

Momentum earned 4.4 out of 5 stars based on our rating scale. Here’s a look at how it did in each category:

  • Solar equipment and services (18 out of 25 points): Momentum lost points for not providing roofing services. 
  • Warranty and performance guarantee (16 out of 25 points): We deducted points for lack of roof leak coverage and power production guarantee. 
  • Reputation and certifications (13 out of 15 points): Though Momentum has a solid reputation, it lost points for lack of NABCEP certification. 
  • Financing options (15 out of 15 points): The company has various in-house financing options. 
  • Industry experience (8 out of 10 points): Momentum isn’t a new company but it doesn’t have the experience of other solar providers. 
  • State availability (7 out of 10 points): Momentum operates in less than half the country.
Pros and Cons
Pros Sells panels from multiple manufacturers Holds NABCEP certification Has a mobile app for panel performance monitoring Cons Doesn’t sell solar batteries in all locations Doesn’t offer a system output guarantee Exhibits aggressive sales tactics according to some customer reviews
Warranty and Financing

Warranty

The company offers a 25-year manufacturer’s warranty to cover any defects. You’ll also receive 25-year workmanship coverage for any installation-related issues.

Financing Options

✔ Full purchase
✔ Loan
✔ Lease
✔ PPA

Reputation and Awards

Momentum Solar has well over a decade of solar industry experience and an A+ rating with BBB. The company made the 2020 Top Solar Contractors list, the 2021 Angi Super Service Award, and the 2022 Bob Vila Best Solar Companies Award. Momentum has also won awards for its positive workplace, which we think improves customer service.

Sunrun Best Solar Panel Leasing
4.5

We chose Sunrun because of its experience and options for solar panel leasing. Sunrun also prioritizes code compliance through its BuilderChoice New Homes Program. This program gives customers a dedicated team to handle their project’s building and permitting paperwork, ensuring all equipment is installed to code.

How We Scored Sunrun

Sunrun earned 4.4 out of 5 stars based on our rating scale. Here’s a look at how it did in each category:

  • Solar equipment and services (15 out of 25 points): Sunrun lost points in this category for not offering roofing services or energy audits. 
  • Warranty and performance guarantee (19 out of 25 points): While Sunrun earned full points for its warranty coverage, it lost several for not having a performance guarantee. 
  • Reputation and certifications (13 out of 15 points): The provider rates well among sites such as BBB but doesn’t hold certifications with some top renewable energy organizations.
  • Financing options (13.5 out of 15 points): Sunrun offers a variety of payment options but doesn’t offer in-house financing.
  • Industry experience (9 out of 10 points): The brand’s years of experience make it far from a new solar provider, but it hasn’t been in business as long as industry leaders, such as SunPower.
  • State availability (8 out of 10 points): Sunrun lost points for not being available in all 50 states.
Pros and Cons
Pros Offers insurance protection for system damage or theft Provides 24/7 customer support Includes free maintenance on leased solar panels Cons May not be available in your state Limits its 25-year warranty to lease and prepaid customers Encourages customers to lease without explaining the drawbacks
Warranty and Financing

Warranty

Sunrun offers a 10-year comprehensive warranty that includes product, roof penetration, and workmanship coverage. Leasing customers receive an extended 25-year warranty that includes insurance protection for theft and damage.

Financing Options

✔ Full purchase
✔ Loan
✔ Lease
✔ PPA

Reputation and Awards

Sunrun has an A+ rating with BBB and is accredited. The provider earned DroneDeploy’s 2022 Guardian of Safety Award for using drone technology with its site assessments. In 2021 and 2022, Sunrun received 14 awards from Comparably, including Best Company Culture, Best CEOs for Diversity, and Best Company for Women. One concern with Sunrun is its push for customers to finance their system through a solar lease without explaining the drawbacks. Leases and PPAs prevent homeowners from ever owning their system or qualifying for solar incentives.

Note: In July 2024, SunPower notified dealers it would be halting all new shipments and project installations. The company also noted it would “no longer be supporting new Leases and PPA sales nor new project installations of these financing options.


What Is the Cost of Solar Panel Installation in Pennsylvania?

Solar panel installation in Pennsylvania costs $2.96* per watt on average. That’s $29,573 for a 10 kW system before applying any solar incentives, which can lower your total cost by thousands if you’re eligible. 

Several factors impact how much you’ll pay for your solar panel system, including:

  • Brand
  • Efficiency rating
  • Panel type
  • Purchasing option
  • Roof size and condition 
  • System size 

Get a better idea of what going solar in Pennsylvania might cost you in the table below.

System SizeAverage CostAverage Cost After Federal Tax Credit
5 kW$14,787$10,351
6 kW$17,744$12,421
7 kW$20,701$14,491
8 kW$23,658$16,561
9 kW$26,616$18,631
10 kW$29,573$20,701
*Cost data sourced from EnergySage. 

What Solar Incentives Are Available in Pennsylvania?

Solar panels are a big investment, but there are federal, state, and local programs that can reduce solar panel installation costs. Below are the key rebates and other solar incentives Pennsylvania residents can apply for. See a full list of Pennsylvania solar incentives

  • Federal solar tax credit: The federal tax credit, also called the Investment Tax Credit (ITC), allows you to receive a tax deduction equal to 30% of your solar installation costs. This rate will reduce to 26% in 2033.
  • Net metering: Some Pennsylvania utility companies have net metering programs that allow you to return your excess energy to the power grid in exchange for 1-to-1 credits on your future bills. The Pennsylvania Electric Company (PECO) offers this kind of program.
  • Pennsylvania Alternative Energy Credit program: The Pennsylvania Alternative Energy Credit Program provides credits for specific amounts of energy produced by your system that can be sold to the state or businesses looking to invest in clean energy. Prices for these credits vary.

Our survey of 1,000 solar users showed that 75% took advantage of solar incentives to further their return on investment. Of that, 64% applied for the federal tax credit, 32% used a net metering program, and 30% benefited from a local rebate incentive.


Solar is a big investment, making choosing the right provider extra important. Here are some important factors to consider when comparing companies.

Solar Services

Check that the company you’re considering doesn’t just sell solar panels but also installs them. We recommend in-house solar panel installation rather than a third party because you’ll likely experience better communication and quality assurance. You’ll also get a more comprehensive labor warranty on the workmanship. Check if the provider only installs solar panels or if they also install solar batteries, inverters, and other equipment. 

Warranties

Solar warranties include:

  • Manufacturer’s warranty (or product warranty): This protects the individual solar system components in case of defects.
  • Workmanship warranty: This covers installation in case of poor workmanship or faulty installation materials.
  • Performance (or power production) guarantee: This guarantees the solar system’s output performs as outlined in your contract.

The best companies offer 25-year warranties in each case, though some limit their workmanship warranty to 10 years. We recommend finding a company that provides at least 20 years for each warranty type.

Payment Options

Solar companies offer a combination of these solar financing options:

  • Full purchase: Purchasing your system in full at the time of installation gives you immediate system ownership and qualifies you for further incentives.
  • Solar loan: A solar loan allows you to make monthly payments on your system but still lets you own your system. 
  • Solar lease: You’ll make set monthly solar system payments with a lease, but you won’t be able to own it, disqualifying you from most solar incentives.
  • Power purchase agreement (PPA): A PPA allows you to make monthly payments with no money down, but you won’t own the system.

The best companies offer 25-year warranties in each case, though some limit their workmanship warranty to 10 years. We recommend finding a company that provides at least 20 years for each warranty type.

According to our recent survey of solar customers, 49% chose to pay in full upfront, 23% got a loan, 11% leased, and 17% financed through a PPA.

Customer Support

Customer service can make all the difference in whether you have a smooth experience. You want a provider that’s not only friendly but reachable, responsive, and helpful. Companies should provide multiple ways to reach them, such as phone, email, online chat, online portal, or mobile app. They should also be responsive across all of them.

Try calling, emailing, or messaging the provider and see how long it takes to reach the right person. Look at the customer support hours to see if you can reach someone on weekends and evenings. Lastly, consider how supportive customer support is. A provider that thoroughly answers all of your questions, looks for ways to save you money, and takes the time to get the best product for your needs should be at the top of your list.

Questions To Ask Your Solar Installer

We recommend asking solar installers the following questions before hiring them for your solar project:

  • How long have you been in business?
  • What licenses and insurance coverage does your business have?
  • What certifications do you hold? Are you NABCEP-certified?
  • Do you assist with permitting or applying for solar incentives?
  • Does your company use all in-house technicians or third-party contractors?
  • What financing options do you offer?
  • Will I need additional services before my solar installation, such as roof repair or tree removal?
  • What kind of warranty coverage will come with my panels and your labor?
  • Can you show me photos of your work or provide customer testimonials?

How Can You Save Money On Solar?

Pennsylvania solar energy costs approximately 30 cents more per watt than the national average of $2.66 per watt. Save money when switching to solar by following these tips:

  • Consider your home’s energy needs: There’s no need to invest in a large system or incredibly high-performing panels if your energy needs are minimal. Your solar provider should be able to advise you on the system size and type you need to cover your electricity usage while getting the most ROI. 
  • Get multiple solar quotes: You can get a quote online or by phone. We suggest getting a quote from a few companies to compare pricing before committing. 
  • Go with the right financing option: Always ask about your financing options, such as policy terms, lender choices, money down, and interest rates. Choose a financing plan you’re comfortable with that makes long-term sense. 
  • Take advantage of solar incentives: Not applying for the solar incentives you qualify for leaves money on the table, potentially thousands of dollars. 

What Should You Expect During a Solar Installation?

The solar installation process will vary slightly by company, but you’ll typically go through these steps:

Consultation: You’ll choose from a virtual or in-person consultation to talk with a company representative about your energy needs, roof condition, and potential savings. Your installer will answer your questions, advise you on your system options, and provide a project estimate. Have a copy of your monthly electric bill handy.
Site survey: A technician will inspect your home and property to identify any issues that will impact installation or limit your system’s potential. The rep will advise you on any roof repair, tree removal, or other services needed to ensure a successful installation and determine the surface area of your roof.
Design and permitting: The company will design your solar array based on your roof assessment and energy needs. You’ll choose your panel specifics and system components. The company will provide you with a detailed quote and contract. Once you sign, the installer will submit necessary permitting paperwork.
Installation: Installers arrive with panels, wiring, racking systems, add-on components, and any other necessary equipment. Our survey takers reported installation most commonly taking just one day to complete. The solar company should provide timely updates for any delays in installation.
Inspection: Your installer will work with local building officials to inspect your system and ensure it meets codes. Scheduling could cause this step to take a few weeks. 
System activation: Once your system passes inspection, your installer will coordinate grid connection with your utility company. After approval, your system will be turned on and begin converting solar energy into electricity for your home.

Our Conclusion

Roughly 96% of our surveyed solar customers said they felt making the switch to solar power was worth it, and 82% said their installation increased their property value. Pennsylvania residents have several great solar companies to choose from if you’re ready to see what you could gain. The right one for you depends on your budget and priorities. We recommend Palmetto due to its high-quality panels, excellent customer support, and positive customer ratings. 

Carefully review a company’s website, warranty, pricing, and customer reviews before deciding which to hire for your solar project. We suggest getting a quote from at least three providers to compare price versus product. Check out our guide to how much solar panels cost for what to expect.


FAQ About Solar Companies in PA

Are solar panels worth it in Pennsylvania?

Whether solar panels are worth it in Pennsylvania depends on how much electricity you use. EnergySage estimates that Pennsylvania residents with a 5 kW solar energy system can save $39,977 in electricity costs over 20 years with a payback period of 8.23 years, less than the 12-year national average.

How many solar companies are in Pennsylvania?

The SEIA reports that Pennsylvania has a total of 467 solar companies. Of that, 107 are manufacturers, 228 are installers and developers, and 130 are unclassified.

Does Pennsylvania offer solar incentives?

Yes. Pennsylvania has several solar incentives, including the federal solar tax credit, net metering programs, utility rebates, and solar renewable energy credits (SRECs).


Our Rating Methodology

We are committed to providing comprehensive and unbiased reviews to our readers. After over a thousand hours of research on solar companies, interviews with experts, and common customer needs, we’ve created a detailed rating system for solar providers based on six factors:

  • Solar equipment, installation, and services (25%)
  • Warranty and performance guarantees (25%)
  • Brand reputation and certifications (15%)
  • Financing options (15%)
  • Experience (10%)
  • Availability (10%)

Total scores are divided by 20 for a final 5-point rating scale.

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