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

Top 10 Solar Companies

Here’s our list of the best solar panel installation companies in the industry based on our in-depth research:

Star Rating Superlative Location Presence BBB Rating Link
SunPower
Most Energy-Efficient 50 States A+
ADT Solar
Best Protection 23 States A-
Momentum
Most User-Friendly 10 States A+
Blue Raven
Best Benefits 22 States A+
Green Home Systems
Best Solar Roofing Options 10 States A+
Elevation
Best for Whole-Home Integration 5 States A+
Trinity
Most Experienced 9 States A+
Sunrun
Best Financing Options 20 States A-
Tesla Solar
Best Availability 50 States A+
Palmetto
Best Customer Service 24 States A+
SunPower
Logo SunPower
Star Rating
Superlative Most Energy-Efficient
Location Presence 50 States
BBB Rating A+
Get Quote
ADT Solar
Logo ADT Solar
Star Rating
Superlative Best Protection
Location Presence 23 States
BBB Rating A-
Get Quote
Momentum
Logo Momentum
Star Rating
Superlative Most User-Friendly
Location Presence 10 States
BBB Rating A+
Get Quote
Blue Raven
Logo Blue Raven
Star Rating
Superlative Best Benefits
Location Presence 22 States
BBB Rating A+
Get Quote
Green Home Systems
Logo Green Home Systems
Star Rating
Superlative Best Solar Roofing Options
Location Presence 10 States
BBB Rating A+
Get Quote
Elevation
Logo Elevation
Star Rating
Superlative Best for Whole-Home Integration
Location Presence 5 States
BBB Rating A+
Get Quote
Trinity
Logo Trinity
Star Rating
Superlative Most Experienced
Location Presence 9 States
BBB Rating A+
Get Quote
Sunrun
Logo Sunrun
Star Rating
Superlative Best Financing Options
Location Presence 20 States
BBB Rating A-
Get Quote
Tesla Solar
Logo Tesla Solar
Star Rating
Superlative Best Availability
Location Presence 50 States
BBB Rating A+
Get Quote
Palmetto
Logo Palmetto
Star Rating
Superlative Best Customer Service
Location Presence 24 States
BBB Rating A+
Get Quote

Find A Solar Installation Company in Your State

SunPower: Most Energy-Efficient

SunPower creates some of the most energy-efficient systems in the country. It manufactures all system components in-house, ensuring each element works together in one streamlined solar energy system.

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

Pros and Cons of SunPower

✔ Nationwide availability
✔ Solar panels, batteries, and electric vehicle chargers produced in-house
✔ 25-year all-inclusive warranty covering full system and components

✘ Only sells SunPower products
✘ 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: Best Protection

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: Arkansas, Arizona, California, Colorado, Florida, Georgia, Illinois, Iowa, Kansas, Louisiana, Maryland, Mississippi, Missouri, Nebraska, Nevada, New Mexico, North Carolina, Ohio, Oklahoma, South Carolina, Tennessee, Texas, and Virginia

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 up-front 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. Its power production guarantee—a rarity in the solar industry—states 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: Most User-Friendly

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 energy systems.

States available: Arizona, California, Connecticut, Florida, Georgia, Massachusetts, New Jersey, Nevada, New York, Pennsylvania, and Texas

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 has a straightforward installation 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). This agreement 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: Best Benefits

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

States available: Arizona, Arkansas, Colorado, Florida, Georgia, Idaho, Illinois, Indiana, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nevada, North Carolina, Ohio, Oregon, South Carolina, Texas, Utah, Virginia, and Washington.

Pros and Cons of Blue Raven Solar

✔ 18 months of free solar energy
✔ No up-front installation cost
✔ Two-year production 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
  • 10-year workmanship warranty
  • Two-year production guarantee

Financing options:

  • Full purchase
  • Loan

Why We Chose Blue Raven Solar

Blue Raven Solar offers reliable systems with a 25-year warranty, 10-year workmanship warranty, and two-year production guarantee. 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: Best Solar Roofing Options

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

States available: California, Louisiana, Mississippi, Missouri, Nevada, New Mexico, North Carolina, Pennsylvania, Texas, and Wyoming

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

 


 

Elevation: Best for Whole-Home Integration

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

States available: Arizona, California, Florida, Nevada, and Texas

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: Most Experienced

Trinity Solar is one of the most experienced companies on our list 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: Connecticut, Delaware, Florida, Massachusetts, Maryland, New Jersey, New York, Pennsylvania, and Rhode Island

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
✘ Serves only nine 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: Best Financing Options

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

States available:Arizona, California, Colorado, Connecticut, Florida, Hawaii, Illinois, Maryland, Massachusetts, Nevada, New Hampshire, New Jersey, New Mexico, New York, Pennsylvania, Rhode Island, South Carolina, Texas, Vermont, and Wisconsin 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 their selected financing option.

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

 


 

Tesla: Best Availability

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 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: Best Customer Service

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: Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Maryland, Massachusetts, Michigan, Missouri, Nevada, New Jersey, New Mexico, North Carolina, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Texas, Utah, Virginia, and Wisconsin, 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 statesMaxeonA+
ADT SolarBest Protection23 statesPanasonicNR
Momentum SolarMost User-Friendly11 statesHyundai, LG, LONGi, Q Cells, REC, Trina,A+
Blue Raven SolarBest Benefits22 statesCanadian Solar, TrinaA+
Green Home SystemsBest Solar Roofing Options10 statesLG, LONGi, PanasonicA+
ElevationBest Whole-Home Integration5 statesLG, Q Cells, RECA
Trinity SolarMost Experienced9 statesQ CellsA+
SunrunBest Financing Options20 statesLGA-
TeslaBest Availability50 statesTeslaC-
Palmetto SolarBest Customer Service24 statesLG, Silfab, YingliA+

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

 


 

How Solar Installation Works

Solar installation isn’t as complicated as you might think. Your solar provider handles almost all of the process. The company begins by consulting you about your energy needs, 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 (PPAs) and which option is right for you. Compare the different plan options offered by most solar companies below.

OptionPurchaseLoanLeasePPA
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
Up-front paymentFull system costAs 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

We surveyed 1,000 homeowners about their experiences installing solar panels. The majority of respondents, 78.4%, took advantage of solar incentives to reduce their overall costs. 75.3% of respondents also said these incentives were easy to access.

The federal government offers a 30% federal tax credit for solar systems installed between 2022 and 2032. This credit decreases to 26% in 2033 and lowers to 22% in 2034. 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 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 installation 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, though 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.

 


 

Types of Solar Equipment

Before investing in a solar energy system, it’s important to understand all of the components that are included. Each element contributes to the efficiency of your system, and having a baseline knowledge of how each one functions will help with your research and selection process. The parts of a typical solar system include:

  • Solar panels
  • Mounting hardware and cables
  • Battery and battery backup
  • Net meter
  • Charge controller

Solar Panels

Solar panels are the key component to your system’s performance. They work by absorbing the sunlight and converting it into electricity. There are several types of photovoltaic (PV) panels available for home installations.

  • Monocrystalline solar panels: These PV panels are the most common and offer the best efficiency and power output. They are black in appearance and blend in with most rooftops. Due to their higher quality, they are more expensive than other panel options.
  • Polycrystalline solar panels: These panels are more affordable than monocrystalline, but perform at a lower efficiency. You’ll need more polycrystalline panels to properly power your home, resulting in a larger solar panel installation. These panels have a blue hue, making them more noticeable in rooftop installations.
  • Thin-film solar panels: Thin-film panels are more flexible and thinner than other panels and are the least expensive to manufacture. Despite their cost-saving benefits, they are less durable than other panels and offer the lowest efficiency. Thin-film panels work best on low-power home installations such as sheds.

Mounting Hardware and Cables

The mounting hardware keeps your panels anchored to your roof with secure brackets and additional equipment. Mourning racking can vary based on your type of roof, including options for shingles, tiled, or metal roofs. The cables connect your panels and other components of the solar system. They are resistant to UV rays and various weather conditions, including extreme temperatures.

Battery and Battery Backup

A solar battery allows you to store the excess energy generated by your solar system. These energy storage systems power your home when your panels aren’t in use or during power outages. They are an optional add-on and can be included with your initial installation or as an upgrade later. There are a variety of high-quality solar batteries available, but availability varies between solar providers.

Inverter

The inverter converts the direct current (DC) power generated by your solar system into the alternating current (AC) power that runs your home. Inverter options will be limited to your solar installer’s catalog but could include top manufacturers such as Enphase, SMA, and Solar Edge. Several solar panel manufacturers produce their own inverters for better system integration and performance.

Net Meter

The net meter tracks the flow of electricity to and from your home, or the amount of energy generated from your solar panels. This includes when you have a surplus or deficit of energy. Some states offer net metering programs for homeowners. These programs credit customers for any excess energy they sell back to the power grid.

Charge Controller

Charge controllers protect your battery by regulating the flow of energy. They prevent your battery from overcharging and detect when it’s time to start charging again.  They also protect any appliances to your battery and actively detect when they need energy.

 


 

FAQs About Solar Energy Companies

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 reviews@thisoldhousereviews.com.