We may be compensated if you purchase through links on our website. Our Reviews Team is committed to delivering honest, objective, and independent reviews on home products and services.More
Solar panel installation on a nice cape cod house with sunny blue skies in the background

The 5 Best Solar Companies in Pennsylvania (2024 Guide)

Get a personalized solar estimate

Invalid Zip Code
Enter details in under 3 minutes

Join more than 10,601 people who have received a free, no-obligation quote in the last 30 days

SunPower tops our list of solar companies in Pennsylvania due to its high-efficiency monocrystalline solar panels. See how it compares to other providers in the Keystone State.

Default Author Icon Written by Tamara Jude + 1 other Reviewer Icon Reviewed by Roger Horowitz Updated 04/17/2024

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 SunPower, which has above-average energy efficiency and largely positive customer reviews. 

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

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. SunPower and Sunrun earned the highest scores due to their panel selection, performance, and customer reviews.

Company Star Rating Warranties Payment Options Link
10–25 years Full purchase, loan, lease, PPA GET QUOTE
25 years Full purchase, loan, lease, PPA GET QUOTE
10–25 years Full purchase, loan, lease, PPA GET QUOTE
25–30 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:

SunPower: Best High-Efficiency Panels
Sunrun: Best Solar Panel Leasing
Momentum Solar: Best Solar Panel Installation
Palmetto Solar: Best Customer Support
Solar Energy World: Best East Coast Installer

Our Top Solar Company Picks

SunPower Best High-Efficiency System

We chose SunPower because its monocrystalline solar panels have efficiency rates up to 22.8%, putting them above other provider’s average offerings of 15%–20% efficiency. Of our 1,000 surveyed solar customers, 16% chose SunPower, making it a leading choice in the industry. 

How We Scored SunPower

SunPower earned 4.8 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): SunPower lost points due to not offering solar roofing or in-house installation. 
  • Warranty and performance guarantee (22 out of 25 points): Lack of roof leak coverage lost SunPower minimal points. 
  • Reputation and certifications (15 out of 15 points): SunPower’s Better Business Bureau (BBB) accreditation and rating and its many energy and industry certifications earned it full points in this category. 
  • Financing options (15 out of 15 points): The provider offers three financing options, such as a 0% down loan.
  • Industry experience (10 out of 10 points): The brand’s nearly four decades of solar experience make it a leader in the industry.
  • State availability (10 out of 10 points): SunPower operates in all 50 states.
Pros and Cons
Pros Sells high-efficiency Maxeon panels All sells in-house solar batteries and electric vehicle (EV) chargers Provides 25-year warranty coverage Cons Doesn’t sell solar products from other manufacturers Is reportedly more expensive than many competitors Varies products and services by ZIP code
Warranty and Financing


SunPower backs its solar products with an all-inclusive 25-year warranty covering all solar system components, additional equipment add-ons, workmanship, and a 92% power output production guarantee.

Financing Options

✔ Full purchase
✔ Loan
✔ Lease
✔ Power purchase agreement (PPA)

Reputation and Awards

SunPower received PV Magazine’s 2019 Sustainability Award for outstanding sustainability leadership in the solar industry. SunPower also received Good Housekeeping’s 2022 Home Renovation Award in the Biggest Energy Savers category for its innovative SunVault energy storage system.

SunPower is accredited by BBB and currently holds an A+ rating from the organization. Based on our team’s analysis, we discovered customers were overall pleased with their SunPower system’s performance.

Sunrun Best Solar Panel Leasing

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


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

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.

Momentum Best Installation Process

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


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

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.

Palmetto Best Customer Support

We chose Palmetto Solar because it offers a wide range of solar services, from comprehensive protection plans to pest abatement. It also has some of the solar market’s most efficient residential panels. We like the company’s commitment to customer service, which includes phone, email, and online chat options, plus an online service request portal and library of troubleshooting resources.

How We Scored Palmetto

Palmetto 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 (20 out of 25 points): Palmetto lost points in this category only for not providing in-house roofing services. 
  • Warranty and performance guarantee (16 out of 25 points): We deducted points for a shorter warranty period than most competitors and no power production guarantee. 
  • Reputation and certifications (14 out of 15 points): Palmetto scored highly in ratings and certifications. 
  • Financing options (13.5 out of 15 points): While Palmetto offers a variety of financing options, it doesn’t handle financing in-house.
  • Industry experience (8 out of 10 points): Palmetto falls midtier regarding its number of years in business. 
  • State availability (8 out of 10 points): Palmetto lost points for not having nationwide locations.
Pros and Cons
Pros Offers a tiered system protection plan Provides an online savings calculator to estimate your ROI Includes a 25-year panel output warranty Cons Charges a monthly fee for active system monitoring Doesn’t offer a free energy consultation Doesn’t offer leasing or PPA financing options
Warranty and Financing


Palmetto provides a 25-year panel warranty, 12-year inverter warranty, 10-year workmanship warranty, and five-year roof penetration warranty.

Financing Options

✔ Full purchase
✔ Loan

Reputation and Awards

Palmetto received Solar Power World’s Most Forward-Thinking Contractor award in 2022. Inc. Magazine recognized the company with a Power Partner Award the same year. Palmetto also provides solar energy to underserved communities with its Get Solar, Give Solar program.

Palmetto Solar holds accreditation with the BBB and has an A+ rating. When reading online reviews, we noticed homeowners praising Palmetto for its dedicated installation managers and quality systems.

Solar Energy World Best East Coast Installer

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


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

Financing Options

✔ Full purchase
✔ Loan

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.

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.

What Areas Do Solar Installation Companies Service in PA?

Solar installers’ service areas may change based on your zip code or city. Use our resource below to see the top solar installers in your area.

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. 


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 SunPower as our top choice due to its high-efficiency panels, comprehensive warranty, 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.