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The Best Solar Companies of December 2023 Guide: Expert Reviewed

Our top rated solar companies are SunPower, ADT Solar and Sunrun. Get a personalized solar estimate in under 2 minutes.

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By Alexis Carthan Reviewed By Roger Horowitz 10/23/2023

Converting to solar energy helps homeowners save on monthly energy costs and offers a clean energy solution. Although the average solar system costs between $17,430 and $23,870, you’ll invest in a reliable energy system that offers long-term savings. 

We’ve reviewed 100 leading solar panel companies nationwide and selected SunPower, ADT Solar, and Sunrun as our top three choices. Keep reading to learn more about these companies and our other choices for quality residential installations.


Compare Solar Companies

Star Rating Best For Location Presence Link
SunPower SunPower
Best High-Efficiency System 50 States Get Quote
ADT Solar ADT Solar
Best Solar Warranty 23 States Get Quote
Sunrun Sunrun
Best Solar Panel Leasing 18 States Get Quote
Blue Raven Blue Raven
Most Reputable 18 States Get Quote
Green Home Systems Green Home Systems
Best Solar Roofs 22 States Get Quote
Elevation Elevation
Best Energy-Efficient Upgrades 5 States Get Quote
Palmetto Palmetto
Best Customer Support 17 States Get Quote
Tesla Solar Tesla Solar
Best Solar Tech 50 States Get Quote
Freedom Solar Power Freedom Solar Power
Most Complete Warranty 5 States Get Quote
SunPower
Logo SunPower
Star Rating
Best For Best High-Efficiency System
Location Presence 50 States
Get Quote
ADT Solar
Logo ADT Solar
Star Rating
Best For Best Solar Warranty
Location Presence 23 States
Get Quote
Sunrun
Logo Sunrun
Star Rating
Best For Best Solar Panel Leasing
Location Presence 18 States
Get Quote
Blue Raven
Logo Blue Raven
Star Rating
Best For Most Reputable
Location Presence 18 States
Get Quote
Green Home Systems
Logo Green Home Systems
Star Rating
Best For Best Solar Roofs
Location Presence 22 States
Get Quote
Elevation
Logo Elevation
Star Rating
Best For Best Energy-Efficient Upgrades
Location Presence 5 States
Get Quote
Palmetto
Logo Palmetto
Star Rating
Best For Best Customer Support
Location Presence 17 States
Get Quote
Tesla Solar
Logo Tesla Solar
Star Rating
Best For Best Solar Tech
Location Presence 50 States
Get Quote
Freedom Solar Power
Logo Freedom Solar Power
Star Rating
Best For Most Complete Warranty
Location Presence 5 States
Get Quote
Company
Star Rating
Best For
Location Presence
BBB Rating
Best High-Efficiency System
50 States
A+
Best Solar Warranty
23 States
A+
Best Solar Panel Leasing
18 States
A+
Most Reputable
18 States
A+
Best Solar Roofs
22 States
A+
Best Energy-Efficient Upgrades
5 States
A+
Best Customer Support
17 States
A+
Best Solar Tech
50 States
NR
Most Complete Warranty
5 States
A+

*Better Business Bureau (BBB) ratings are accurate as of September 2023.



9 Best Solar Companies of 2023

Our team evaluated 100 U.S. solar companies based on reputation, solar services, payment options, state availability, and warranty coverage. Here are our top picks for the best solar companies:

Key Terms To Know

  • In-house installers: An installation team that works directly for the solar provider
  • Inverter: A component that converts your solar system’s direct current (DC) power into the alternating current (AC) power that runs your home. 
  • Service area: The total number of states where a solar provider offers services. 
  • Solar panel efficiency rating: The percentage of sunlight that solar panels convert to usable electricity. The higher the efficiency rating, the better the energy production. 
  • Third-party installers: An installation team contracted by the solar company to do the project.


Our Top Solar Company Picks

SunPower

Best High-Efficiency System
4.8

SunPower offers the most energy-efficient and high-performing solar systems available, with efficiency rates of 22.8% compared to the typical 15%–22% range. It’s one of the few companies that uses in-house system components, creating a streamlined system designed to perform better. SunPower also sells solar batteries and electric vehicle (EV) chargers.

Pros and Cons

Pros Builds customized, high-efficiency solar systems to suit each home Offers an extensive coverage area throughout the country Sells energy storage and EV charger add-ons Cons Limits solar equipment options due to in-house product exclusivity More expensive than other companies, according to some customer reviews Service area varies by ZIP code within each state

Warranty and Financing

Warranty

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

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.” In 2022, SunPower received the Good Housekeeping’s 2022 Home Renovation Award in the Biggest Energy Savers category. The company was recognized for its innovative SunVault energy storage system.

SunPower currently holds an A+ rating and is accredited with the BBB. Based on our team’s review analysis, we discovered that customers were pleased with their SunPower system performance. However, we noticed a pattern of complaints about higher-than-average installation costs and communication issues with third-party installers.

State Availability

✔ 100% of the United States covered: 50 states but varies by ZIP code

Customer Reviews

Below is a highlight of homeowner reviews on SunPower:

“This was probably the smartest choice I have made behind purchasing my home.Simple process the only thing I did was secure my pets during installation and kick back and wait to save a ton of money. If you have concerns just reach out to your SunPower team let them know the problem, they’re the experts let them handle your concern.Bottom line keep paying your utility company or generate your own power along with a big tax break.” — Fred B. via BBB

“Horrible service. I’m filing a complaint as an attempt to get these guys to fix the job they did. I added a new system to my original system. Whatever they did, they did incorrectly and now nothing works. They know what the problem is but they wont come out to fix it. I keep getting told they have escalated my issue but nothing happens. I have run out of patience. Therefore Im filing a complaint with every entity I know of. Its been 2-1/2 months since my system was installed.” — Nick R. via BBB

ADT Solar

Best Solar Warranty
4.6

ADT Solar (formally known as SunPro) offers the most comprehensive coverage with 25-year warranties on labor, panels, and inverters, plus a power production guarantee. Not all companies offer a power production guarantee that promises a certain level of panel performance. This coverage keeps your investment protected for the next 25 years or longer.

Pros and Cons

Pros Includes comprehensive protection, plus monetary compensation for poor-performing panels Offers self-monitoring through Enphase MyEnlighten Provides additional roof repair services Cons Fewer panel options compared to other providers Limited system customization options Received negative reviews for poor customer service and automated calls

Warranty and Financing

Warranty

ADT Solar backs its installations with a 25-year comprehensive warranty covering power production, panel, inverter, and labor warranty.

Financing Options
✔ Full purchase
✔ Loan

Reputation and Awards

ADT Solar is accredited by the BBB and holds an A+ rating. When checking company reviews, we found that customers praised the company for its efficient installations but raised concerns about poor customer support and an increase in automated calls from ADT Security.

State Availability

✔ 46% of the United States covered: Arkansas, Arizona, California, Colorado, Florida, Georgia, Iowa, Illinois, Kansas, Louisiana, Maryland, Missouri, Mississippi, North Carolina, Nebraska, New Mexico, Nevada, Ohio, Oklahoma, South Carolina, Tennessee, Texas, Virginia

Customer Reviews

Below is a sample of solar reviews on ADT Solar:

“We live in ** and have had our system installed a little over 10 months and have had great luck with it. Our salesman was awesome and super straightforward and didn’t sell us a pipe dream. We have not had an electrical bill over 13 [d]ollars yet. We are waiting on our state incentives and have already received our Federal Tax Credit. Great crew and sales staff. Communication took a day sometimes.” — Eydra C. via BBB

“I know they have a shortage of electrical engineers. But it took over 6 months to get my solar batteries installed (I already had panels). And now there is a battery issue and they can give me *no* timetable as to when they will be able to come out to fix it.For how much I paid to get this in place, this is unacceptable.” — Yashila S. via BBB

Sunrun

Best Solar Panel Leasing
4.4

Sunrun offers four financing options, including unique leasing options tailored for homeowners who don’t want system ownership. Prepaid and leased systems get a 25-year warranty that includes 25 years of system service and maintenance plus ongoing monitoring and theft insurance.

Pros and Cons

Pros Provides system monitoring that signals issues with your system Offers diverse financing options to suit various budgets Provides EV and solar battery solutions Cons Limited online information on solar incentive disqualification with leases Requires added costs for the same coverage plans as leased and prepaid customers Varies solar battery availability by state

Warranty and Financing

Warranty

Sunrun backs its systems with a 10-year comprehensive warranty which includes product, roof penetration, and workmanship coverage.

Financing Options

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

Reputation and Awards

The company earned DroneDeploy’s 2022 Guardian of Safety Award for incorporating drone technology in its site assessments. In 2021 and 2022, Sunrun was recognized by Comparably with 14 awards. Its accolades include Best CEOs for Diversity 2022, Best Company Culture 2021, and Best Company for Women two years in a row.

Sunrun currently holds an A+ rating with BBB and is accredited. Customers praised the comprehensive coverage for leased systems but complained about delayed installations, poor customer service, and poor communication with project managers.

State Availability

✔ 36% of the United States covered: California, Colorado, Connecticut, Florida, Hawaii, Illinois, Massachusetts, Maryland, Nevada, New Hampshire, New Jersey, New Mexico, New York, Pennsylvania, Rhode Island, South Carolina, Texas, Vermont, plus Washington, D.C. and Puerto Rico

Customer Reviews

Here’s what customers have to say about Sunrun

“I’m very happy with my rep that helped me along throughout the whole process. I really liked being able to get answers quickly if I needed them through a text. Also, I like how they broke down the entire program and helped us understand our arrangement plan. thank you guys really appreciate it.” — Dan Y. via BBB

Sunrun has a terrible response time with resolving issues. I am approaching one month with no solar service and I have not received any notification the problem will be resolved anytime soon. Meanwhile, my utility bill doubled and I still have to pay the monthly lease dues for a service I am not getting. I wish they would arrive and take their equipment so I could join a solar company that is more efficient. I have gone through the customer service 3 times and I still have not heard back in 3 business days!” — Christopher C. via BBB

Blue Raven

Most Reputable
4.4

Blue Raven has one of the best reputations for reliability and trustworthiness. It has won awards for its team and CEO, and customer reviews report great customer service and prompt installations. The company also stands out for its in-house financing, which includes 18 months of free solar energy.

Pros and Cons

Pros Offers SunPower’s high-efficiency panels and storage options Provides a unique in-house financing option which includes 18 months of free solar energy Recognized as one of the industry’s most reputable solar companies Cons Offers one of the shortest production guarantees among our reviewed companies Some customer reviews mention poor communication Workmanship warranty falls slightly below the industry standard

Warranty and Financing

Warranty

A Blue Raven Solar system comes with a 25-year product warranty, a 10-year workmanship warranty, and a two-year production guarantee.

Financing Options

✔ Full purchase
✔ Loan

Reputation and Awards

Blue Raven Solar strives to achieve rewarding experiences for its customers and employees. The solar company won awards in back-to-back years at the Comparably’s Brand Awards, a site known for its comprehensive company culture and reputation reviews. Comparably recognized Blue Raven for Best Operations Team 2022, Best Sales Team 2022, Best Product & Design Team 2022, Best Places to Work in Salt Lake City 2022, and Best Company Outlook 2022. The 2021 wins include Best Company for Diversity 2021, Best CEO 2021, Best Company Work-Life Balance, and Best Career Growth 2021. Blue Raven Solar ranked No. 20 on Glassdoor’s Best Place to Work in the USA in 2021.

The company is accredited with the BBB and currently holds an A+ rating. We noted that customers praised the knowledgeable staff and prompt installation but warned of poor communication after projects were completed.

State Availability

✔ 36% of the United States covered: Colorado, Florida, Idaho, Illinois, Indiana, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nevada, North Carolina, Ohio, Oregon, South Carolina, Texas, Utah, Virginia, Washington

Customer Reviews

Read a few Blue Raven Solar reviews below:

“The agent took the time to help me with my solar system. He listens and answers questions about the solar system. The team put up the panels and they look great. The team checked with me, doing the whole setup. Good service, one happy customer.” — Billy S. via BBB

“I had a new roof installed and prior to having the roof installed my contractor contacted Blue Raven to remove and reinstall. Well it’s been about 3 months of rescheduling so they finally came out to install but the problem now is that the system is still not working and I contacted them to have someone come out and look at the system and have been put off another 2 weeks. They had no problem collecting the money for the removal and reinstall. Will not recommend this company.” — Donald via BBB

Green Home Systems

Best Solar Roofs
4.6

Green Home Systems offers a wide selection of name-brand rooftop panels and more inconspicuous solar roofing options. It’s one of the few companies that provide solar shingles and tiles in addition to panels. Green Home System’s catalog also includes several battery and backup generator selections that provide additional protection during emergencies.

Pros and Cons

Pros Offers solar batteries and backup generator selections Provides a large selection of solar panels to customize your system Sells traditional panel systems plus advanced solar roofing options Cons Does not offer solar leasing or PPA options Has less than 10 years of solar business experience Third-party installers used for installations

Warranty and Financing

Warranty

Green Home Systems includes a 25-year product warranty and performance guarantee for its solar panels. Customers receive a 25-year power output warranty, 25-year component warranty, 10-year, 110-mph wind warranty with solar shingles. For solar tiles, you’ll receive a 25-year solar tile power output warranty, a 10-year component warranty, and a 10-year, 110-mph wind warranty.

Financing Options

✔ Full purchase
✔ Loan

Reputation and Awards

With just six years in the solar industry, Green Home Systems is one of the youngest companies in this review. It prides itself on offering American-made solar products and accessories. Green Home Systems holds multiple certifications with SolarEdge and Enphase. The company also maintains a partnership with LG Solar as Platinum installers.

Green Home Systems holds a B+ rating and is accredited with the BBB. When reading reviews, we learned that homeowners appreciated the company’s accurate quotes and clear communication throughout the installation process but called out the overwhelming telemarketing calls.

State Availability

✔ 44% of the United States covered: Arizona, Arkansas, California, Colorado, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Minnesota, Missouri, Montana, Nevada, New Mexico, North Carolina, Pennsylvania, South Carolina, Texas, Vermont, Wisconsin, Wyoming

Customer Reviews

We’ve included a few customer reviews on Green Home Systems below:

“The solar experience has been excellent thus far. From the sales person to the contractor. They have taken great care of our property and the panels were installed with expertise. They have been helpful every step of the way and I am already seeing savings on my electric bill.” — Brad H. via BBB

“I have made customer service appointments 3 times this week and the customer service rep. has not called me back. I have not been able to find a valid email address or a phone number.” — Larry D. via BBB

Elevation

Best Energy-Efficient Upgrades
4.6

Along with solar panels, Elevation provides full-home energy audits and upgrades to improve your energy efficiency and long-term savings. It is one of the few companies to complete both audits and upgrades with its own in-house staff. Elevation also sells Curb Energy monitoring equipment designed to track your home’s energy use, maximize solar panel production, and eliminate wasted energy.

Pros and Cons

Pros Provides a full suite of home efficiency upgrades and solutions Offers full-home assessment for energy efficiency improvements Sells active energy monitoring for the entire home Cons Has issues with delayed installations and failed final activations, per online reviews Limited customer support availability Must pay more for extended warranty coverage

Warranty and Financing

Warranty

Elevation backs its solar systems with 25-year warranties for product and workmanship coverage.

Financing Options

✔ Full purchase
✔ Loan

Reputation and Awards

Elevation has focused on providing a complete energy-efficiency experience for homeowners. The company received the U.S. Environmental Protection Agency’s (EPA’s) Home Performance with Energy Star: Partner of the Year award in 2019, 2020, and 2021.

Phoenix Business Journal’s Arizona Corporate Excellence (ACE) Awards named Elevation the 2019 Innovator of the Year. In 2020, the company received a Silver Stevie Award in the Customer Satisfaction Strategy category at the 14th annual Stevie Awards for Sales & Customer Service.

Elevation holds accreditation with the BBB and currently has an A+ rating. Our review analysis revealed that homeowners appreciated the company’s efficient solar equipment and efficiency upgrades but voiced concerns over failed final inspections and installation process delays.

State Availability

✔ 10% of the United States covered: Arizona, California, Florida, Nevada, Texas

Customer Reviews

Here’s a sample of homeowners’ experiences with Elevation:

I had [Elevation] add insulation in the attic of my 19 year old house. They did a leak test on the duct system, sealed openings in the ductwork and around pipes going into the walls, and increased the insulation level from 6″ to 14″. The 3-man crew was very professional, friendly, and courteous.They showed me before and after pictures of the attic when they finished and did a very good job cleaning up. Excellent job for an excellent price.” — Don S. via BBB

“They are not delivering a system as promised in our contract. I was told I was getting a system capable of producing peak 7.2 kwh and it is only producing peak 3.5 kwh. I understand that it may produce less at times but it has never produced more than 3.5. Been on the phone with them over 40 times and have had little to no response. They promised to send someone out to check it but no one has shown. And they later canceled my inquiry. They won’t give me the time of day.” — Kendall W. via BBB

Palmetto

Best Customer Support
4.4

Palmetto has a wide range of customer service options, such as phone, email, and online chat options, plus an online service request portal and library of troubleshooting resources. The company also offers tiered system protection plans and ongoing customer support via its app. 

Pros and Cons

Pros Gives access to customer support via email, chat, phone, and app Offers a tiered system protection plan Provides an online solar savings calculator to estimate potential savings Cons Limits its active monitoring services to three years Shorter roof leak and workmanship coverage than other installers Some online reviews mentioned permitting and installation delays

Warranty and Financing

Warranty

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

Palmetto Solar holds accreditation with the BBB and has an A+ rating. While reading online reviews, we noticed that homeowners praised Palmetto for its dedicated installation managers and quality systems but mentioned very long waiting periods for permitting, plus installation delays.

State Availability

✔ 34% of the United States covered: Arizona, California, Colorado, Florida, Georgia, Illinois, Maryland, Massachusetts, Michigan, Nevada, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Texas, Virginia

Customer Reviews

Here’s what customers said about Palmetto Solar:

“Incredible service, everyone was so nice and they were very helpful and there was no pressure. They instilled them very fast and did an excellent job. [I] would recommend!” — Nick L. via BBB

“The worst solar company ever. Horrible customer service. No feedback ever. It can’t have anything done! The solar system was installed after 8 month after the entire project started and now it has been six month and it still not working. It has been my worst nightmare, I will not recommend Palmetto to anybody.” — Suselei M. via BBB

Tesla Solar

Best Solar Tech
4

Available nationwide, Tesla is one of the few solar companies to provide potential customers with an up-front solar quote on its website. It offers a range of sleekly designed solar panels and shingles that blend into your existing roof. The company is also responsible for the Tesla Powerwall, one of the industry’s most popular solar batteries.

Pros and Cons

Pros Offers up to 10 Tesla Powerwalls with each installation Provides transparent online quotes with full pricing details Sells solar roofing options that replace your entire roof Cons Has issues with scheduling service appointments, per some reviews Limited customization options Only offers third-party installation services

Warranty and Financing

Warranty

Tesla offers a 25-year performance warranty on its system and a 10-year comprehensive warranty covering product and workmanship.

Financing Options

✔ Full purchase
✔ Loan (in select areas)

Reputation and Awards

Tesla Energy began in 2003 as a subsidiary of Tesla, Inc., a leader in automotive manufacturing and electric vehicle technology. The company introduced the Tesla Powerwall, one of the market’s most popular solar batteries. Tesla Energy grew its solar technology to include solar panels, the Tesla Solar Roof, and the Tesla Inverter.

Tesla is rated as A+ on the BBB but does not hold accreditation with the organization. We noted that Tesla customers praised the company for the panel and Powerwall performances but disliked the constant issues with scheduling repairs and servicing.

State Availability

✔ 100% of the United States covered: 50 states but varies by ZIP code

Customer Reviews

We’ve included the following customer reviews on Tesla:

“When the presentation was done remotely, I was skeptical at first, but the solar designing technology Tesla Solar Energy quickly dispelled that concern. The presentation was outstandingly professional. The installation was quick, and my system is already producing as expected.”  — Landon M. via BBB

“I went through the entire process with Tesla for solar on my home, even got the permitting complete. It took a few months of waiting for my install date and instead they just canceled my order completely saying they are no longer in my market. It was a complete waste of time and I have to start all over and find another company. Of course, pricing has increased since then. I deeply regret ever trusting this company.” — flames2112 via Best Company

Freedom Solar Power

Most Complete Warranty
4

Working as a SunPower Master Dealer, Freedom Solar provides high-efficiency solar systems to residents. The company has 16 years of solar industry experience along with partnerships with certified installers. It’s one of the few companies to offer grid-tied, ground-mount, carport, and off-grid solar solutions. 

Pros and Cons

Pros Offers rooftop solar, ground-mount, carport, and off-grid installations Provides preconstruction consultations with its home contractors Works with SunPower to install high-efficiency solar systems Cons Called out for underperforming solar systems, per some customer reviews Covers a limited service area Doesn’t offer many system customizations

Warranty and Financing

Warranty

Freedom Solar provides a comprehensive 25-year warranty covering product, workmanship, and panel performance. 

Financing Options

✔ Full purchase
✔ Loan

Reputation and Awards

Freedom Solar made Inc.’s Regionals 2023: Southwest list for the fastest-growing private companies in America. Solar Power World chose the company for its 2022 Top Solar Contractor. It is Freedom Solar’s ninth time receiving this award.

Freedom Solar Power is BBB accredited and holds an A rating with the organization. The company received positive reviews for its consistent installation updates and well-trained staff. Negative reviews highlighted issues reaching customer service.

State Availability

✔ 10% of the United States covered: Colorado, Florida, North Carolina, Texas, and Virginia.

Customer Reviews

We’ve highlight Freedom Solar’s customers reviews below:

“I had a fantastic experience with Freedom Solar Power. I have been up and running for about 2 years now and have already avoided rate increases that other CSU residents are facing. The installation crew was professional and left my house clean. Couldn’t be happier with my system and the savings!” — Nick W. via BBB

“We entered a contract with Freedom Solar Power over a year ago, with many delays & scheduling issues. We still do not have a fully functioning system producing power, as a result we do not have anything to show for our investment thus far.” — Olivia N. via BBB


Understanding Differences in Solar Companies

Here are some of the key differences you should compare when shopping for a solar company:

  • Solar panel quality: Solar customers can choose between monocrystalline and polycrystalline solar panels. The companies with the highest-efficiency panels use monocrystalline
  • Installation process and services: Some companies offer a completely streamlined installation process, including in-house design, installation, and whole-home energy audits. Other companies use third-party installers. 
  • Cost and financing: Every solar company on this list offers full purchase and loan financing options. Some also offer leases and power purchase agreements (PPAs). A full purchase or solar loan qualifies you for the federal solar tax credit and other cost-saving incentives. A lease or PPA reduces how much you pay up-front, but the solar company still owns the panels so you can’t qualify for incentives.
  • Warranty options: Each company on this list offers 25-year manufacturer warranties along with workmanship warranties, though some companies’ workmanship warranties are only 10 years. The coverage specifics vary by installer. 
  • Service area: Sunpower and Tesla are available in all 50 states, whereas ADT Solar, SunRun, Blue Raven, and Palmetto service about half the country. Green Home Solutions and Elevation service less than 10 states each.


Are Solar Panels Worth It?

Despite their high initial costs, solar panels are worth the investment in the long term.  According to the U.S. Department of Energy (DOE), more than 3 million homes have converted to solar energy, with a million installations taking place in the last two years. Homeowners have discovered that solar energy provides several benefits, including long-term cost savings and a boost in home value

With a solar system, you gain energy independence from external electricity sources and have added protection from unforeseen disruptions in the power supply. In addition, federal and state solar incentives help reduce installation costs, resulting in a better return on investment.

Why Trust Our Team Our goal is to provide reliable information to inform your decision when choosing a solar provider. The This Old House Reviews Team has spent more than 770 hours analyzing online customer feedback and researching solar companies. We routinely fact-check our solar pages to ensure our articles stay current and accurate. Homeownerssurveyed 2,000 Solar panel and solar battery specifications compared 50 + Customerreviews read 10,000 + Solar technology companies considered 68


Solar Incentives and Rebates

Solar incentives, credits, and rebates offer additional savings on solar panel costs. The federal government offers a 30% federal tax credit. Some solar companies assist customers with finding and applying for solar incentives.

Visit the Database of State Incentives for Renewables and Efficiency (DSIRE) to view your area’s available incentives.

Did you know?

When we surveyed 1,000 homeowners about installing solar panels, we learned that 78.4% took advantage of solar incentives. Of these respondents, 75.3% said the incentives they used were easy to access. 

Solar incentives, credits, and rebates offer additional savings on solar panel costs. The federal government offers a 30% federal tax credit. Some solar companies assist customers with finding and applying for solar incentives.

We surveyed 1,000 homeowners about their experiences installing solar panels. Most respondents (78.4%) took advantage of solar incentives to reduce their overall costs. Of these respondents, 75.3% said the incentives they used were easy to access. Visit the Database of State Incentives for Renewables and Efficiency (DSIRE) to view your area’s available incentives.


Solar Payment Options

You can choose from various solar financing options to fit your budget. Many companies offer two or more payment choices. A full purchase or loan is the most cost-effective option. Both options qualify you for solar tax credits and other incentives that reduce your up-front investment.

 Compare the most common plan options below:

  • Full purchase: A full cash purchase gives you full system ownership, qualifying you for any tax incentives and rebates
  • Solar loan: This option requires smaller monthly payments for a set time frame and grants your full ownership.
  • Solar lease: Homeowners lease the system from the solar provider and make monthly payments for its use.
  • Power purchase agreement (PPA): With this financial option, the solar company retains system ownership and only charges you for the solar energy you use each month. 

We recommend choosing a cash payment or loan to save the most money on your new solar system. A solar lease or PPA is only beneficial if you have no interest in owning your own solar system.


Solar Company Warranty Options

Warranties can differ based on each company’s products. If the company works with several manufacturers, you could have multiple warranties for one system.  Alternatively, a solar provider could offer all-inclusive warranty coverage for its in-house products, making the claims process much easier. 

Warranties usually fall into these categories:

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

The top companies offer 25-year warranties in each of these cases, though some limit their workmanship warranty to 10 years. We recommend finding a company that provides 25-year warranties for coverage throughout your system’s lifetime.


How Do I Find The Best Solar Company in My State?

Solar company available varies between each provider. While some companies offer nationwide availability, others focus on a smaller service area. Use our tools below to discover which solar companies service your area. 

Solar company availability sometimes changes from state to state, and even ZIP code to ZIP code. Use our free tool below to learn which solar companies service your state.

Find a Solar Installation Company in Your State


Solar Panel Equipment & Efficiency

Solar panel equipment plays a major role in your system’s performance and energy savings. Most homeowners choose rooftop installations to position their panels closer to the sun for optimal performance. You can add additional system upgrades, such as solar batteries, to extend your system’s functionality. In addition, investing in high-efficiency solar panels will help maximize your energy production. 

Solar Panel Equipment

Below is an overview of typical rooftop solar installations and system upgrades: 

  • Traditional solar panels: Monocrystalline solar panels are the most common. These offer the best efficiency and power output but are the most expensive. Polycrystalline panels are more affordable but less efficient, so you must buy more panels to power your home. 
  • Solar shingles and roofing: Solar shingles and roofing attach directly to your shingles or tiles and provide the same structural protection as traditional roofing. They offer a sleek, integrated design at a much higher price than traditional panels. For example, the Tesla Solar roof costs more than its traditional solar panels. 
  • Solar batteries: Most homeowners add solar batteries to use for backup power and to make the most of their system’s energy production. Batteries store excess solar energy you can use when the power grid is down, keeping your home running during a grid outage. You should consider a solar battery if you experience frequent outages or have medical equipment that requires power.
  • Electric vehicle chargers: Electric vehicle (EV) chargers offer a convenient at-home solution for EV owners. They use energy generated from solar panels to charge your vehicle at a lower rate than public charging stations.

Solar Panel Efficiency

Solar panel efficiency refers to the percentage of the sun’s energy that a solar panel can convert into usable electricity. The higher the efficiency rate, the better the energy conversion and production. Solar panels’ efficiency has improved significantly in recent years, with high-efficiency solar panels reaching rates of nearly 25%. We recommend focusing on solar panels with over 20% efficiency to get the most out of your system.


What To Expect During a Solar Installation

After choosing your solar provider, you’ll meet with a representative to begin the installation process. We’ve created this general overview of what you can expect from this process based on our conversations with various installers.

  1. Initial consultation: A company representative will assess your property’s solar potential and determine energy needs. Many companies offer in-person or virtual consultations. You’ll need your most current utility bill available to help determine your average energy usage. 
  2. Site survey: The company rep will review your roof’s structural integrity, available space, slope, and shading. This helps determine the best location for your solar panels. 
  3. Design and permitting: The rep will design a solar system to fit your needs with panel, component, and add-on accessory options. You’ll receive a finalized, detailed quote to approve. Most installers handle all necessary permitting and paperwork. The permitting process varies between areas but typically takes two to four weeks to complete. We recommend getting an estimated timeline for the entire installation process
  4. Installation day: The solar company may use its own in-house staff or third-party installers. To help avoid communication issues, we recommend asking for your project’s main point of contact. Most installations take one to two days, sometimes longer for complicated jobs. 
  5. Final inspection: Your solar company will coordinate with local officials for final activation approval. All installations must meet local codes and match the approved project designs. This process could take two to four weeks and depends on all parties’ availability. 
  6. Activation: Once all parties approve, your system will receive permission to operate (PTO). Your installer will connect the system to the grid and get final approval from the utility company for activation.


The Solar Quote Process

When deciding on a solar company, we recommend getting solar quotes from at least three different companies. Schedule consultations to assess each company’s expertise and compare system specifications, installation costs, financing options, and warranties. Verify references, licenses, and credentials.

We also recommend gauging company reputation through customer reviews. Check each company’s ratings and customer feedback on trusted review sites such as the Better Business Bureau. Look for indications that a company is responsive to questions and concerns and provides good communication throughout the installation process.


Other Companies We Reviewed

Although these companies aren’t on our list, they still serve as excellent options for home solar installations:

  • LGCY Power: LGCY Power one of the best guided solar consultations available and offers detailed online articles covering the solar installation process. The company also partners with Sunrun, one of our picks for top solar companies. 
  • Momentum Solar: Momentum Solar keeps its customers informed throughout the installation process with timely updates during every step. The company also uses an in-house installation team to provide quick and high-quality installations. 
  • Trinity Solar: Trinity Solar has serviced the Northeast for over 28 years. The company’s in-house staff carries solar certification from some of the solar industry’s most prestigious programs. 

Other Home Resources

We’ve listed additional homeowner resources below:


Our Conclusion

Based on our research, SunPower is our top rated solar company due to its highly efficient systems, and streamlined technology. If system protection is your priority, ADT Solar offers the most comprehensive warranty coverage to protect your solar investment. Homeowners looking for excellent solar savings without committing to system ownership should consider Sunrun as their solar panel  installation company. 

Consider your energy needs, budget, and local climate to determine the best solar energy company for your home. We recommend getting multiple free quotes to compare costs, services, and warranty options. 


FAQ About Solar Energy Companies

What are the disadvantages of solar energy?

The two main disadvantages of solar energy are the high initial cost and the dependence on weather conditions. Though solar panels are more affordable than ever, installing a solar energy system is still expensive. Additionally, the amount of energy a solar system generates can be affected by weather conditions such as clouds or storms, reducing the system’s overall efficiency and output.

How does solar energy benefit the environment?

Solar power is a renewable resource and prevents the use of fossil fuels to generate electricity, reducing the amount of pollution in the environment. Switching to renewable energy helps to reduce your carbon footprint and creates access to unlimited clean energy solutions.

Which is better: Sunrun or SunPower?

When comparing Sunrun vs SunPower, the better option will depend on your needs. SunPower uses high-quality Maxeon panels paired and custom components to create high-performing  solar systems. Sunrun offers unique leasing financing options that offer the savings of solar energy without buying your own system. If excellent solar technology is a priority, choose SunPower.  If you’re interested in energy savings without system ownership, Sunrun might be the better option for your home. 

How much energy would solar panels produce?

Most residential solar panels produce between 250 and 400 watts of power. The higher the wattage, the more power your home receives. A solar installer will analyze your current electricity usage and determine the number of solar panels for your home. Use this calculator from the National Renewable Energy Laboratory (NREL) to determine your solar panel size based on your energy usage.

Are solar panels covered by homeowners insurance?

Yes, solar panels are covered under most homeowners insurance policies. This protection extends to damage caused by fire, wind, lighting, or other physical damage. Check your policy for complete details on your full coverage. 

Do solar panels actually increase home value?

Yes, solar panels can increase home value thanks to the boost in energy efficiency and lower electric bills. According to the National Renewable Energy Laboratory (NREL), each $1 saved on monthly energy bills increases home value by $20. For example, a home that saves $500 per year with solar energy increases its property value by $10,000.

How long do solar panels last?

Solar panels last around 25–35 years with proper care and maintenance. It’s essential to hire a reputable installer and perform basic maintenance to prolong your panels’ life span.

How easy is it to go off-grid for solar?

Going off-grid is considerably harder than investing in a traditional grid-tied system. The cost of an off-grid system is much higher investment than a typical residential system, averaging b between $45,000–$65,000. They require more detailed planning for daily energy consumption to account for adequate energy storage needs. Unless your home is too far for traditional electric company power connections, we recommend sticking with a grid-tied solar system for your home. 


Our Rating Methodology

The This Old House Reviews Team is 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.