In This Review: Top Solar Companies | Conclusion | How Solar Installation Works | How To Find the Best Solar Company | What To Look for in a Solar Company | FAQs | Methodology

The best solar energy companies offer comprehensive installation services coupled with responsive customer service. Use this guide to compare different solar companies nationwide and find the right provider for you.

Top 10 Solar Companies

The following companies are the best in the industry based on our in-depth research:



SunPower creates some of the most energy-efficient systems in the country. Because it manufactures all system components in-house, each element works together to produce a streamlined solar system.

States available: All 50 states, but varies by ZIP code

Pros and Cons of SunPower

✔ Nationwide availability
✔ Produces solar panels, batteries, and electric vehicle chargers in-house
✔ 25-year all-inclusive warranty covers the full system and components

✘ Limited to SunPower products only
✘ Its solar panels are more expensive than other companies

SunPower Warranty and Financing

Warranty options:

  • 25-year all-inclusive warranty covers entire system and workmanship

Financing options:

  • Full purchase
  • Loan
  • Lease

Why We Chose SunPower

SunPower combines highly efficient solar panels with in-house components to create a streamlined solar system. It offers four panel options, a battery storage system, and various electric vehicle (EV) chargers to customize your system.

SunPower backs its solar products with an all-inclusive 25-year warranty. This covers all solar system elements, additional storage or charging add-ons, and required maintenance. Though SunPower’s solar panels cost more than other companies, they’re some of the most efficient available.

Learn more: SunPower Solar review
Free quote: Get a quote from SunPower



ADT Solar

ADT Solar (formerly Sunpro Solar) provides the best protection of any provider on this list. It offers extended warranty coverage on labor, panels, and inverters plus a 25-year power production guarantee.

States available: AR, AZ, CA, CO, FL, GA, IA, IL, KS, LA, MD, MO, MS, NC, NE, NM, NV, OH, OK, SC, TN, TX, and VA

Pros and Cons of ADT Solar

✔ Offers self-monitoring through Enphase MyEnlighten
✔ Protects installation with 25-year power production, panel, inverter, and labor warranty
✔ Provides three financing options

✘ Available in only 21 states
✘ Doesn’t provide upfront pricing information online

ADT Solar Warranty and Financing

Warranty options:

  • 25-year comprehensive warranty

Financing options:

  • Full purchase
  • Loan

Why We Chose ADT Solar

ADT Solar offers ample coverage to protect your solar investment. It provides a power production guarantee—a rarity in the solar industry—stating your system will produce a projected amount of energy over 25 years. The company will pay you $.10 per kilowatt-hour (kWh) if your production level falls short.

ADT Solar also includes system monitoring through the Enphase MyEnlighten mobile app, allowing customers to measure their system’s energy production remotely.

Learn more: ADT Solar Review
Free quote: Get a quote from ADT Solar



Momentum Solar

Momentum Solar makes the transition to solar energy easy and engaging. The company handles every aspect of the process in-house, from pricing and financing to design and installation. It also offers a variety of solar panels to help you customize your system.

Momentum’s interactive mobile tracking app gives customers a more active role in the installation process, and its frequently updated blog informs and educates homeowners about their solar systems.

States available: CA, CT,  FL, GA, MA, NJ, NV, NY, PA, and TX

Pros and Cons of Momentum Solar

✔ Helps customers enroll in government savings programs and handles permitting paperwork
✔ Offers seven solar panel brands for better customization
✔ Partners with Enphase to offer a solar battery option

✘ Doesn’t provide pricing information online
✘ Not available nationwide

Momentum Solar Warranty and Financing

Warranty options:

  • 25-year product warranty
  • 25-year workmanship

Financing options:

  • Full purchase
  • Loan
  • Lease
  • PPA

Why We Chose Momentum Solar

Momentum Solar provides a straightforward process beginning with a site assessment to ensure your home can support solar energy and a review of your current energy usage. The company has more panel options than any other provider on our list and gives customers more design and pricing options.

Momentum provides information about and helps with enrollment in government rebate programs and other incentives. The company’s mobile app allows customers to track their energy usage by month, day, or hour and verify their system’s overall health and performance. Performance data can easily be shared from the app to social media platforms. Additionally, Momentum’s website includes a wealth of free online resources, solar industry updates, and other helpful tools.

Momentum customers can lease, finance, or purchase their panels outright. Qualifying customers can receive a loan through Momentum or sign up for a power purchase agreement (PPA) that has no up-front cost and charges only for the power produced, similar to an electricity bill.

Learn more: Momentum Solar Review



Blue Raven Solar

Blue Raven Solar offers unique benefits to ensure homeowners get the best return on their solar power investment.

States available: AZ, AK, CO, FL, GA, ID, IL, IN, KS, KY, MI, MN, MO, NC, NV, OH, OR, SC, TX, UT, VA, and WA

Pros and Cons of Blue Raven Solar

✔ 18 months of free solar energy
✔ No up-front installation cost
✔ Two-year productivity guarantee on system output

✘ Doesn’t offer solar lease or PPA options
✘ Only available in 22 states

Blue Raven Solar Warranty and Financing

Warranty options:

  • 25-year manufacturer warranty
  • Two-year productivity guarantee

Financing options:

  • Full purchase
  • Loan

Why We Chose Blue Raven Solar

Blue Raven Solar offers reliable of its systems with a 25-year warranty and two-year productivity warranty. The company will upgrade your system for free if it doesn’t meet its energy production estimates.

Customers can pay for their system in full or select the BluePower+ loan, which provides 18 months of free solar energy with no up-front costs. The first five years of the loan payments are locked into a fixed rate through the SmartStart program.

Learn more: Blue Raven Solar Review
Free quote: Get a quote from Blue Raven



Green Home Systems

Green Home Systems offers a selection of high-quality traditional solar systems in addition to advanced solar roof shingles and tiles.

States available: CA, LA, MO, MS, NC, NM, NV, PA, TX, and WY

Pros and Cons of Green Home Systems

✔ Solar battery and backup generator
✔ Solar panel systems and solar roofing installations
✔ 25-year performance and product warranty

✘ Available in only 10 states
✘ No PPAs or solar leases

Green Home Systems Warranty and Financing

Warranty options:

  • 25-year product warranty for solar panels
  • 25-year performance guarantee for solar panels
  • 25-year solar tile power output warranty
  • 10-year component warranty for solar tiles
  • 25-year solar shingle power output warranty
  • 25-year component warranty for solar shingles
  • 10-year 110 mph wind warranty for all solar roofing products

Financing options:

  • Full purchase
  • Loan

Why We Chose Green Home Systems

Green Home Systems provides high-tech solar roof shingles and tiles. Solar roofs function as solar panels but blend in with your roof’s design. Green Home’s shingle and tile options are durable, watertight, and wind-resistant. They’re installed directly on your existing roof.

The company also offers traditional, high-efficiency solar panels with a 25-year product warranty. Its solar tiles have a 10-year output warranty, while solar shingles are covered for 25 years. Both roofing options include a 10-year warranty for the inverter and a 10-year wind warranty that guarantees durability in windy conditions up to 110 mph.

Customers can pay for their solar systems in full or finance with a solar loan.

Free quote: Get a quote from Green Home Systems




In addition to solar panels, Elevation will evaluate your home’s energy efficiency and offer solutions to reduce your utility bills.

States Available: AZ, CA, FL, NV, and TX

Pros and Cons of Elevation

✔ Solar panels systems backed by a 25-year warranty
✔ Full-home assessment for energy efficiency improvements
✔ Active energy monitoring for entire home

✘ Only available in five states
✘ No pricing information online

Elevation Warranty and Financing

Warranty options:

  • 25-year product warranty
  • 25-year workmanship warranty

Financing options:

  • Full purchase
  • Loan

Why We Chose Elevation

Elevation provides whole-home energy efficiency solutions. The company builds custom solar panel systems and offers an Energy Efficiency package to find and repair air leaks, poor insulation, or other energy-draining issues. Elevation handles all repairs in-house with trained operations and installation teams. You can also install its Curb Energy monitoring system to track your energy usage in real time.

Elevation backs its solar systems with 25-year warranties for product and workmanship coverage. Installations include a solar battery or electric vehicle (EV) charger. Homeowners can pay for their Elevation system in full or with a solar loan.

Free quote: Get a quote from Elevation



Trinity Solar

Trinity Solar is one of the most experienced companies in our review with almost three decades in the home services industry. Since moving to solar in 2004, the company has completed nearly 80,000 solar installations. It’s also the largest privately held solar company in the nation.

States available: CT, DE, FL, MA, MD, NJ, NY, PA, and RI

Pros and Cons of Trinity Solar

✔ Additional home services including roofing and electrical assistance
✔ Four payment options
✔ Privately held and family-owned

✘ Limited 5-year workmanship warranty if you purchase your panels
✘ Services only eight states

Trinity Solar Warranty and Financing

Warranty options:

  • 25-year equipment warranty
  • 5-year workmanship warranty

Financing options:

  • Full purchase
  • Loan
  • Lease
  • PPA

Why We Chose Trinity Solar

Trinity Solar has a decades-long history of serving customers, beginning as a heating and air company in 1994 and expanding to solar in 2004. The company offers high-quality solar systems with panels from Q Cells, one of the top names in the industry. It also provides solar storage options from Generac or Tesla and handles all installations in-house.

Trinity Solar offers four payment options that each come with different warranties. Customers who purchase their solar system receive a 5-year workmanship warranty. Those who select a a lease get workmanship coverage through the end of their contract. All installations include a 25-year equipment warranty regardless of the selected financing option.

Free quote: Get a quote from Trinity Solar




Sunrun offers four financing options and full-service protection with each plan.

States available: AZ, CA, CO, CT, FL, HI, IL, MA, MD, NH, NJ, NM, NV, NY, PA, RI, SC, TX, VT, and WI plus Puerto Rico and Washington, D.C.

Pros and Cons of Sunrun

✔ Provides theft and damage coverage for its leased and prepaid products
✔ Provides daily monitoring to ensure the health of its leased and prepaid products
✔ Offers customer service through online chat

✘ Solar and battery availability varies by state
✘ Doesn’t detail a variety of products and plans online

Sunrun Warranty and Financing

Warranty options:

  • 10-year workmanship warranty

Financing options:

  • Full purchase
  • Loan
  • Lease
  • PPA

Why We Chose Sunrun

Sunrun offers four unique financing options, including a monthly lease, full-amount lease, monthly loan, and full-system purchase. Sunrun is unique in that it offers full service to all of its customers regardless of the purchasing plan they select.

Leasing contracts have full-service coverage including protection from damage, theft, and degradation. Sunrun will fix your system at no cost if its efficiency decreases. These services are included for loan and full purchase customers through an added Protection Plus subscription service.

Learn more: Sunrun Solar review
Free quote: Get a quote from Sunrun




Not many solar companies offer nationwide service, but Tesla is the exception. It provides high-quality panels and installation services in all 50 states with some limitations.

States available: All 50 states, but installation may be limited in some ZIP codes

Pros and Cons of Tesla

✔ Provides online solar panel quotes
✔ Provides 24/7 solar panel monitoring through the Tesla mobile app
✔ Protects solar panels with a 25-year performance guarantee

✘ Limits system size to four options
✘ Doesn’t provide installation in all ZIP codes

Tesla Warranty and Financing

Warranty options:

  • 25-year performance warranty

Financing options:

  • Full purchase
  • Loan

Why We Chose Tesla

Tesla manufactures and installs its own solar panels nationwide. Its low-profile panels have no visible solar cells and blend into your roof seamlessly. The company offers online solar panel estimates in under a minute based on your home address and average electric bill.

In addition to its traditional solar systems, Tesla offers a solar roof that replaces your current roof with tiles that generate solar energy. It also has a solar battery, the Tesla Powerwall.

Learn more: Tesla Solar Panel review



Palmetto Solar

Palmetto Solar is the best provider for customer service. It offers phone, email, and online support alongside a Palmetto Protect coverage plan that includes monitoring and solar discounts for customers and non-customers alike.

States available: AZ, CA, CO, CT, FL GA, HI, IL, MA, MD, MI, MN, NC, NJ, NV, NY, OH, PA, RI, SC, TX, UT, VA, and WI, plus Washington, D.C.

Pros and Cons of Palmetto Solar

✔ Offers a protection plan to Palmetto customers and non-customers
✔ Provides an online solar savings calculator
✔ Protects solar panels with a 25-year output warranty

✘ Doesn’t provide financing information online
✘ Isn’t available nationwide

Palmetto Solar Warranty and Financing

Warranty options:

  • 25-year output warranty

Financing options:

  • Full purchase
  • Loan

Why We Chose Palmetto Solar

Palmetto Solar offers full-service solar installation and post-installation services. It also has an online tool that calculates your projected electric bill savings with solar energy.

Palmetto Solar offers a variety of customer support options through phone, email, and online chat. Its Palmetto Protect plan includes active monitoring and discounts on services such as solar panel cleaning and pest abatement. This plan is also available to non-customers.

Learn more: Palmetto Solar review



Our Conclusion

The best solar energy company depends on your state availability and unique energy needs. While SunPower is our top pick due to its highly efficient systems, we recommend any of the solar power companies mentioned in this article.

Use the tool below to get quotes from local solar companies near you:

Compare Solar Panel Installation Companies

CompanySuperlativeService AreasPanels OfferedBBB Rating*
SunPowerMost Energy-Efficient50 statesMaxeonNot rated
ADT SolarBest Protection23 statesPanasonicA-
Momentum SolarMost User-Friendly10 statesHyundai, LG, LONGi, Q Cells, REC, Trina, A+
Blue Raven SolarBest Benefits22 statesCanadian Solar, Trina A+
Green Home SystemsBest Solar Roofing Options10 statesLG, LONGi, PanasonicA+
ElevationBest Whole-Home Intergration5 statesLG, Q Cells, RECA+
Trinity SolarMost Experienced9 statesQ CellsA+
SunrunBest Financing Options20 statesLGA-
TeslaBest Availability50 statesTeslaA+
Palmetto SolarBest Customer Service24 statesLG, Silfab, YingliA+

*The Better Business Bureau (BBB) ratings are accurate as of August 2022.



How Solar Installation Works

Solar installation isn’t as complicated as you might think. Your solar provider handles almost the process. The company begins by consults you about your energy need, then designs a solar power system based on your home’s specifications. The solar provider handles all permitting and schedules an installation day that fits your schedule. Finally, the company conducts final inspections.

Below is a video we’ve put together to help explain the solar installation process in more detail:



How To Find the Best Solar Companies

Consider product selection, financing options, and other variables to determine the best solar company for you.

Service Availability

Ensure the solar companies you’re interested in service your area. A company may advertise coverage for your entire state, but limit its services to specific ZIP codes. Conduct your solar company research using your exact ZIP code to find the most accurate availability information.

Company Equipment Offerings

Review the type of solar panels, inverters, storage, and add-ons each company offers. Some companies offer products from a variety of solar panel manufacturers, while other installers limit their selections to one brand or only in-house items. Look for companies that offer the broadest selection to create a customized solar system.

Financing Options

Consider whether the company offers full purchases, solar loans, solar leases, or power purchase agreements (PPA) and which option is right for you. Compare the different plan options offered by most solar companies below.

OwnershipHomeownerHomeownerSolar CompanySolar Company
Purchase optionPurchase in fullPurchase and financePay set monthly payments for installed solar panelsPay monthly payments based on energy generated by the system
Upfront paymentFull system costSome solar loans begin as low as $0 downAs low as $0None

Home Compatibility with Solar Energy

Determine if your home can support a solar system before selecting a solar company. Household electrical demand, your roof, and your location all affect your home’s compatibility with solar energy.

  • Location: Your home’s location determines how effective your solar panels will be. You may not benefit from solar energy if your home is obstructed by buildings or tall trees.
  • Household electrical demand: Going solar won’t save you money if your home doesn’t use enough monthly energy. Alternatively, your home may require so many solar panels that it won’t be affordable if you use too much monthly energy. A good solar provider will assess your energy consumption before installation to help you understand how much you could save from switching to solar power.
  • Size, age, and slope of your roof: Solar panels are most efficient when facing south on a slope between 15 and 40 degrees. Solar may still be an option if your roof isn’t south-facing or has a steep slope, but your system may be less efficient or more expensive.

Solar Incentives

The federal government offers a 26% federal tax credit for solar systems installed in 2022. Specific states and municipalities also offer incentives to make solar energy more affordable. Visit the Database of State Incentives for Renewables & Efficiency to view available incentives in your area.



What to Look for When Choosing a Solar Installation Company

Once you find companies that service your area, you’ll want to narrow in on the most reputable and reliable solar installers.

Reputation, Certifications, and Accreditations

Look for highly respected solar installers in your area. Some companies could have poor reputations due to aggressive sale tactics or deceptive advertising.

The top companies will also have certifications from the North American Board of Certified Energy Practitioners (NABCEP), one of the most prestigious certifications for a solar company. You can also check the Better Business Bureau for additional information about the company’s reputation and accreditation.

Customer Satisfaction and Reviews

Customer reviews are another indicator of a company’s reliability. Check reviews from a company’s current and former customers. Friends, family members, and neighbors with solar panel systems can also provide insight into local companies. Getting details about their positive and negative experiences could lead you to the ideal solar installer.

Warranty Offerings

Warranty plans can differ based on each company’s products. If the company works with several manufacturers for each component, you could have separate warranties for the panels, inverters, and energy storage devices. Alternatively, a solar provider could offer all-inclusive warranty coverage for its in-house products.

When searching for a solar company, pay attention to the types of warranties offered. They usually fall into these categories:

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

The top companies offer 25-year warranties in each of these cases, although some limit their workmanship warranty to 10 years. We recommend finding a company that provides 25-year warranties that can cover the lifetime of your solar investment.



Frequently Asked Questions About Solar Energy


Other Helpful Solar Resources



Our Rating Methodology

The This Old House Reviews Team is committed to providing comprehensive and unbiased reviews to our readers. This means earning your trust through transparent reviews and having the data to back up our ratings and recommendations. Our rating system for solar panel companies and installers is on a 100-point scale based on five factors:

  • Payment options (40 points): Options include purchase, loan, lease, and Power Purchase Agreements (PPAs). Companies receive points for each of those four options it provides.
  • Solar services (30 points): Does the company provide in-house installation of solar panels and battery backups? Can the company also monitor energy production and perform energy-efficiency audits to ensure system performance. The more options available, the higher the score.
  • Warranty options (10 points): The success of a residential solar system depends on the workmanship, performance guarantees, and length of product coverage. We score solar companies based on the number of warranty options available. The more warranties a solar company offers, the higher the score it receives.
  • State Availability (10 points): We award the most points to solar companies with the broadest service area and state availability.
  • Reputation (10 points): We factor in how the Business Better Bureau (BBB) scores each company. We deduct points for any alerts or pending lawsuits.

To share feedback or ask a question about this article, send a note to our Reviews Team at