The 5 Best Solar Companies in Massachusetts

• Why We Picked It: Sunpower builds its customized solar systems with some of the most efficient solar panels on the market. The company assembles each system with in-house components and parts, creating a streamlined solar system designed to work at its peak performance.

SunPower offers its signature SunPower Equinox system for residential installations. These systems use high-efficiency Maxeon solar panels to reduce the size of your solar installations. The SunPower Equinox offers a minimized panel configuration, eliminating unnecessary wiring and utility boxes to create a sleek design. Homeowners benefit from the strength of a high-efficiency solar system while preserving the aesthetic of their homes. The company also offers custom solar battery storage, the SunVault Storage System, and the Wallbox electric vehicle (EV) charger.

SunPower protects its systems with its SunPowerComplete Confidence Warranty, a comprehensive 25-year warranty covering manufacturing defects and workmanship issues. Coverage includes a 25-year panel performance guarantee, ensuring your panels produce at least 92% of their stated output throughout the warranty. The SunVault Storage system also includes a 10-year warranty.

Services include:

• Consultation
• Survey and design for solar projects
• Online system design tool
• Solar panel installation
• Battery installation and back-up
• Mobile app
• System monitoring
• Electric vehicle charging system
• 25-year comprehensive warranty

SunPower offers three payment options for its customers: cash payment, solar loans, and solar leases.

• Why We Picked It: Sunrun offers four financing options that each come standard with a full-service protection plan. Sunrun was among one of the first solar panel installation companies to offer a leasing program, effectively making solar power more accessible to homeowners. The company has two leasing options: a monthly payment, similar to other solar panel companies; and a prepaid lease good for 25 years of service that comes with free monitoring and maintenance.

Sunrun creates custom solar systems by reviewing your home size, sunlight exposure and roof area and slope, then determining the specific system size and number of batteries you will need. Sunrun will then calculate the energy usage and cost of your solar system and explain any government incentives available to you. Customers that lease solar panels through a provider will not be eligible to take advantage of federal and/or state solar tax credits or reimbursement programs.

Sunrun also offers a service package that includes an additional “bumper-to-bumper” system warranty that provides free equipment replacement and system repairs for ten years, as well as proactive monitoring and a comprehensive insurance policy on your panels.

Services include:

• Consultation
• Survey and design
• Solar panel installation
• Mobile app
• System monitoring
• Electric vehicle charging system
• 25-year output warranty
• Optional ongoing service package

In addition to Sunrun’s two leasing options, the company allows customers to purchase their solar panels in cash or through in-house financing with no money down for those who qualify.

The company provides general estimates online but cannot give an accurate quote until completing an in-person or virtual home consultation.

• Why We Picked It: Palmetto Solar’s phone, email, and online support, along with an extensive optional monitoring and discount program, make the company our top choice for solar installers in terms of customer service.

Beyond its standard 25-year performance warranty, the company offers the Peace of Mind Protection Plan. For an additional $12 per month, the plan provides customers with labor for replacing or servicing parts, guaranteed workmanship timelines and discounts on services such as pest abatement, solar panel cleaning and solar panel removal and reinstallation. According to Palmetto Solar’s website, the Peace of Mind plan includes nearly $2,000 in discounts and rebates at an annual cost of $144.

Palmetto offers an online tool for calculating your monthly and yearly savings. Using your address and monthly electric bill, the tool will estimate the amount of your utility bill with solar energy. The company also has several convenient customer service tools like a mobile app for tracking energy usage and 24/7 online support.

Services include:

• Consultation
• Financing options
• Survey and design for solar projects
• Solar panel installation
• Battery installation and back-up
• Audits to ensure energy efficiency
• Peace of Mind Protection Plan
• 25-year output warranty standard for all customers
• Energy storage
• Pest abatement
• Solar panel removal and reinstallation
• Solar panel cleaning
• Installation of Tesla’s Powerwall integrated battery system
• Installation of energy consumption meters to monitor usage

Customers with Palmetto Solar can choose to purchase their solar panels outright or through a loan. Solar loans allow you to own your system with no money down through monthly payments.

Palmetto also provides lease and PPA options. Leases and PPA are similar in that they both constitute third-party ownership. However, lease payments are set at the same monthly rate, while PPA payments vary each month depending on the amount of energy you use, similar to an electricity bill.

• Why We Picked It: Established in 1994, Trinity Solar has been in business longer than any other provider on our list, making the company our recommendation for the most experienced solar panel installer. Due to its many years of experience, Trinity is currently the largest privately held solar company in the country, having completed more than 80,000 installations to date.

Trinity Solar provides customers with a straightforward process of owning or leasing solar panels that begins with a site assessment to ensure your home can support solar energy, as well as a review of your current energy usage. The company has a wide variety of panels—more than any other provider on our list—and gives customers more design and pricing options.

In an effort to educate customers about solar energy, Trinity assists with information about—and potential enrollment in—government rebate programs and helps locate other available 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. Trinity’s website includes a wealth of free online resources, solar industry updates, and other helpful tools to help customers learn more and stay informed.

• Why We Picked It: Momentum Solar tops our list of solar companies in Massachusetts because it strives to make the solar experience an easy and positive one for its customers through user-friendly tools and step-by-step guidance through the installation process.

Momentum’s mobile app allows customers to stay up-to-date on their project and receive details on completed and future installation steps. In addition to progress alerts, the app delivers energy production data for customers to ensure efficiency and determine peak production hours. It also has a customer support function, providing direct email or phone support access.

The company’s website includes a wealth of helpful resources and a frequently updated blog that addresses the basics of residential solar power, as well as updates on the latest technologies, products, and trends.

Services include:

• Electric vehicle charging system
• 25-year output warranty
• Optional service package
• Consultation
• Survey and design for solar projects
• Solar panel installation
• Audits for energy efficiency
• Mobile app
• Solar system monitoring

Momentum Solar customers can buy their solar panels through a lump-sum payment or loan. The company also leases panels and provides Power Purchase Agreements (PPAs). A PPA essentially allows a solar installer to bill the residential solar customer for monthly usage, typically at a much lower rate than standard electricity. However, both leases and PPAs both constitute third-party ownership, which means the residential solar installer—not the customer—is eligible for federal and state tax credits and incentives.