9 Best Solar Companies in Maryland in 2022

We'll help you narrow down the best installer for your home.


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Looking for energy freedom in the Free State? There are plenty of installers to choose from, but in this article, we’ll help you narrow down your options by recommending nine of the best solar companies in Maryland.

On track to increase its Renewable Portfolio Standard (RPS) target from 25% to 50% by 2030, Maryland has quadrupled its solar capacity since 2015. One of the biggest drivers of this has been its statewide programs that support residential, commercial and community solar projects. Maryland residents also have access to some of the best solar companies in the nation, offering exceptional value for generating clean energy.

For many readers, the decision of which solar installer to hire comes down to cost. To start getting free quotes from the best solar companies in Maryland, you can use this tool or fill out the form below.

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Our Picks for Top Maryland Solar Installers

  1. Lumina Solar
  2. Solar Energy World
  3. SunPower
  4. Celestial Solar Innovations
  5. Edge Energy
  6. Trinity Solar
  7. American Sentry Solar
  8. Energy Select
  9. Maryland Solar Solutions

Comparing the 10 Best Solar Companies in Maryland

Lumina Solar

Lumina Solar

Location: Maryland, Pennsylvania and Virginia; Based in Baltimore

What We Like: Lumina Solar offers fully integrated solar technology to help its customers make a practical leap to new levels of energy efficiency, conservation and independence. Lumina’s solar panel systems are built with cutting-edge technology, and the company was the first in the state to offer Tesla Powerwall batteries. Though a young company, the team is made up of industry veterans sure to provide an aesthetically pleasing, reliable installation.

What We Don’t Like: Lumina Solar is only a 4-year-old company, albeit an impressive one. Given that warranties are only valid if your chosen company stays in business, we typically advise choosing companies with closer to 10 years of experience and that have a proven, sustainable business model.

What Customers Are Saying: “Lumina installed my solar system a couple of months ago, and I want everyone to know how fantastic this company is. I urge anyone looking to make the switch to call Lumina Solar. From the very beginning of researching solar companies, I was most impressed with customer reviews and they were absolutely right.” — Marsha via Better Business Bureau (BBB)

Lumina Solar at a Glance:

Solar Energy World

Solar Energy World

Location: State of Maryland; Based in Elkridge

What We Like: Solar Energy World’s excellent industry reputation across the East Coast continues to shine each year, making it one of the fastest-growing independently owned and operated solar companies in the region. In fact, Solar Energy World has ranked as the No. 1 residential solar installer by volume in Maryland five years running. Installing Silfab, Longi, Q Cells and REC solar panels (which are some of the best available), Solar Energy World offers high-quality technology backed by a simple and tested process.

What We Don’t Like: Relative to some competitors on this list, Solar Energy World’s size can cause lapses in organizational presence and individualized attention. Those seeking a highly personalized, hands-on experience may be better off with a smaller company.

What Customers Are Saying: “Every step of the entire process was great — a low-pressure and knowledgeable consultation, a realistic and well-priced estimate (that turned out to match the design exactly), all steps in the process happened on or before schedule, the installation was quick and easy and neat (with cleanup), county inspection and all of the after-sale steps were taken care of quickly.” — Daniel via BBB

Solar Energy World at a Glance:

  • Year Founded: 2009
  • Services Provided: Solar panels, backup battery installations, live energy monitoring
  • Warranty: Product-specific warranties ranging from 20-25 years
  • Financing Options: Cash payments, solar loans



Location: State of Maryland

What We Like: SunPower has been an industry leader since 1985, manufacturing some of the best solar panels on the market. With nationwide service, SunPower can connect you with a certified dealer near your home or business to conduct the installation. SunPower’s reputation for excellent customer care and all-in-one solar solutions earns it a high spot on our list of the best Maryland solar installers.

What We Don’t Like: SunPower is a national company, working with local dealers in Maryland to install its systems. As a result, the quality of your workmanship will be fairly dependent on the SunPower dealer nearest you.

What Customers Are Saying: “Very knowledgeable, professional and easy to work with. I was pleasantly surprised that the entire staff has been very helpful and not “pushy” like other solar companies.” — Scott via BBB

SunPower at a Glance:

  • Year Founded: 1985
  • Services Provided: Solar panels, backup battery and electric vehicle charger installations
  • Warranty: 25-year all-inclusive warranty
  • Financing Options: Cash payments, solar loans, solar leases
  • Learn More: SunPower Review

​Celestial Solar Innovations

Celestial Solar Innovations

Location: Northwest Maryland; Based in Frederick

What We Like: A local company with a passion for solar and exceptional service, Celestial Solar Innovations offers flexible solar financing options and knows the ins and outs of Maryland policies to ensure its customers receive the best possible value for their investment in solar power. Its strong Maryland roots make homeowners feel their experience is valued over profits, and stellar customer reviews back this sentiment.

What We Don’t Like: Celestial Solar Innovations only offers services in a small region of Northwest Maryland. This can be advantageous to customers in the area, as it means they receive more attention for their projects, but the majority of Maryland will be left outside Celestial Solar Innovations’ service area.

What Customers Are Saying: “Celestial Solar was a joy to work with. We had numerous estimates before meeting with Jim and CSI. They delivered on every promise. Not a hiccup. The system they installed works very well and is delivering in excess of 100% power. Each month, in addition to a zero-dollar power bill, there is an overage that we are now selling each month as SRECs (they set that up as well).” — Nate via Google Reviews

Celestial Solar Innovations at a Glance:

  • Year Founded: 2013
  • Services Provided: Solar panels, backup battery installations
  • Warranty: Product-specific warranties
  • Financing Options: Cash payments, solar loans

Edge Energy

Edge Energy

Location: State of Maryland; Based in Beltsville

What We Like: A certified master dealer of SunPower solar panels in Maryland, you can trust that Edge Energy installs some of the highest-quality solar technology on the market. Add a comprehensive service range that includes energy solutions, audits and upgrades, and it’s no surprise Edge Energy consistently ranks as one of the best solar companies in Maryland.

What We Don’t Like: SunPower’s solar panels are some of the best in the business, especially when it comes to efficiency. However, this lone offering can be limiting to customers who may not need the most efficient solar panels or who are interested in purchasing a different brand of products.

What Customers Are Saying: “Edge Energy used the best quality solar panels and related equipment. They did a great job of installation. Their system provides an online account that keeps track of solar production and energy usage. I have produced more energy than I use and been paid back by the energy companies for the energy I produce.” — Bryan via Google Reviews

Edge Energy at a Glance:

  • Year Founded: 2006
  • Services Provided: Solar panels, backup battery installations, energy efficiency upgrades
  • Warranty: 25-year all-in-one warranty via SunPower
  • Financing Options: Cash payments, solar loans

Trinity Solar​

Trinity Solar

Location: State of Maryland

What We Like: One of the more established companies in the solar business, family-owned Trinity Solar is the largest privately held residential solar installation company in the nation. With over 80,000 installations under its belt, Trinity Solar is a reliable choice for home and business owners in Maryland.

What We Don’t Like: The Trinity’s size has led to some issues in communication. We’ve seen reviews lately from customers who have struggled to get in touch with customer service.

What Customers Are Saying: “From the very first day someone came out to look at my house ‘til the day it was finished, Trinity was great! Always on time and did what they said they were going to do each and every time. Best part was, they kept me informed all the time. If you’re going solar, Trinity is the company you want doing it.” — George via BBB

Trinity Solar at a Glance:

  • Year Founded: 1994
  • Services Provided: Solar panels, backup battery installations
  • Warranty: 25-year equipment warranty, 5-year workmanship warranty
  • Financing Options: Cash payments, solar loans, solar leases/PPAs

​American Sentry Solar

American Sentry Solar

Location: State of Maryland; Based in Bel Air

What We Like: American Sentry Solar was launched as a division of American Design & Build and specializes in all aspects of exterior remodeling in addition to solar, including roofing, siding, windows and doors. Pairing roofing experts with solar specialists, American Sentry Solar offers residential and commercial installations and upgrades of the highest quality at a competitive price.

What We Don’t Like: Though we love the Enphase Encharge 10, we’d like to see American Sentry Solar offer other solar battery options to its customers.

What Customers Are Saying: “Other than the competitive price offered by American Sentry Solar, we were very pleased with their guarantee, warranty and monitoring plan included with the system. They answered our questions and gave us step-by-step information on what to expect for the whole process. Our panels are neatly arranged and look great on our roof. I love to think of all the money I am saving while sitting by the pool looking up at our panels.” — Jackie via Google Reviews

American Sentry Solar at a Glance:

  • Year Founded: 1993
  • Services Provided: Solar panels, backup battery installations, roofing
  • Warranty: 25-year workmanship and manufacturing warranties
  • Financing Options: Cash payments, solar loans

​Energy Select

Energy Select

Location: Southern Maryland; Based in Leonardtown

What We Like: Relative to its competitors, Energy Select offers the most comprehensive service we’ve seen when it comes to the overall efficiency and performance of your home or business’s energy system. We love seeing companies that stress minimizing energy use before moving on to installing solar panels. Energy efficiency upgrades can reduce the number of solar panels you’ll need, in most cases greatly reducing overall project costs.

What We Don’t Like: As with American Sentry Solar, we’d like to see Energy Select expand its battery offerings. Currently, it only offers the LG Chem.

What Customers Are Saying: “This service is amazing. All involved were professional and paid great attention to our questions. They are fast and leave the property clean and all trash removed. The difference in the home is amazing. All persons involved from start to finish are the best in their field. I would give them more than 5 stars.” — Frances via Google Reviews

Energy Select at a Glance:

  • Year Founded: 2002
  • Services Provided: Solar panels, backup battery and EV charger installations, insulation, energy efficiency audits and more
  • Warranty: 10-year workmanship warranty, product-specific warranties
  • Financing Options: Cash payments, solar loans

​Maryland Solar Solutions

Maryland Solar Solutions

Location: State of Maryland; Based in Owings Mills

What We Like: A highly local company, Maryland Solar Solutions comes recommended by regional sources like the Baltimore Sun. Focusing solely on being the best at a few select services (residential and small-business solar electric design and installation), Maryland Solar Solutions can be trusted to deliver you a quality, no-nonsense solar panel installation.

What We Don’t Like: Maryland Solar Solutions’ focused approach can be limiting for customers seeking add-ons like backup battery installations or EV chargers.

What Customers Are Saying: “We were impressed with the quality and efficiency of the panels used by MSSI as compared with other companies. Furthermore, their commitment to customer service is unsurpassed. They were knowledgeable and very helpful through the entire process, from HOA approval to installation to coordinating with BGE to registering to sell the extra energy we produce.” — Wilma via Google Reviews

Maryland Solar Solutions at a Glance:

  • Year Founded: 2008
  • Services Provided: Solar panel installations, energy efficiency audits
  • Warranty: Up to 25-year performance warranty
  • Financing Options: Cash payments, solar loans

How We Chose the Best Solar Companies in Maryland

Our company selection process includes researching the product portfolios, solar services, financing options, customer feedback and industry reputations of every major Maryland installer. Looking at metrics in these categories, we rated and ranked each company to narrow down our list of the nine best solar companies in Maryland. See our solar methodology for more information.

Choosing the Best Solar Installer for Your Home

There’s a great deal that goes into determining the best solar installer for your home, including your region, utility company, electric bills, roof space, energy consumption and more. The following factors might help you consider what to prioritize when choosing the best Maryland solar installer for your home or business.

Services Offered

Solar installation companies in Maryland will vary in service offerings and specializations. For instance, Maryland Solar Solutions chooses to focus strictly on solar panels, while companies like Edge Energy prioritize efficiency and home energy upgrades and use panels only to supplement your home’s energy system. Think about what makes your home or business unique — then find a company that prioritizes those needs. Other things to consider might be whether you need roofing work, EV chargers or backup power systems.

Installation Process

Before you sign a contract, make sure you’re confident in your understanding of the installation process. Here are a few questions you’ll want the answers to:

  • How long does permitting take in my area?
  • What is my utility company’s net metering policy?
  • Will any add-ons be installed along with the solar?
  • How long will the entire process take?

Permitting and interconnection can vary from city to city, so it’s best to be sure you have realistic expectations.

Solar Pricing and Financing

Home solar is a great investment — especially in Maryland. Solar’s payback period can vary anywhere from 5 to 12 years (on average), so think about whether you might need special financing options to fit solar into your budget. Maryland is full of experienced solar installers familiar with the difficulties of high up-front costs, so be sure to ask about flexibility in financing options.

Industry Affiliations

It’s a good idea to hire a company that maintains industry credentials, such as membership in the Solar Energy Industries Association (SEIA), a B Corp certification or affiliation with other professional associations. Memberships and certifications are a great indicator of the company’s professionalism, workmanship, reputation and reliability.

Types of Panels

Some types of solar panels are better than others, and each installer will offer a differing portfolio of products. Small homes in confined areas will likely need high-efficiency solar panels, while commercial projects with more space can prioritize the most affordable solar panels. It can only help to ask what brands of panels your company is certified to sell and install. Certifications from some of the best solar panel brands like Tesla, Panasonic, LG or REC might also be a good indicator of legitimacy.

Incentives, Rebates and Tax Credits

Maryland offers some of the best solar incentives in the country. Though effective, these incentives can be difficult to navigate, and finding a solar installer with experience securing the best value from these incentives may provide the best return on investment in the long run. It pays to think locally. Does the company you’re looking at have plenty of experience in your community?


Most warranty issues with solar don’t stem from the panels themselves, but instead from the workmanship of the installer. As a result, we recommend choosing a solar provider with a robust workmanship or all-in-one warranty to avoid any issues to your roof or home that may emerge months to years after installation. Most reputable solar companies will offer at least a 10-year warranty that covers workmanship.

Cost of Solar in Maryland

As of 2022, our market research and data from solar brands conclude the average cost of solar in Maryland is around $2.77 per watt. This means a 5-kW system would cost around $10,261 after the federal solar tax credit is applied. Keep in mind that a 5-kW system is about the minimum size you’ll need for your home.

Luckily for those in Maryland, the state offers a number of helpful incentives (in addition to the federal tax credit) to help reward residents who switch to clean energy. Visit the DSIRE database for more information on incentives in your area.

Maryland Solar Incentive

Maryland Solar Incentive Overview

Solar Renewable Energy Certificates (SRECs)

Maryland rewards its residents with SRECs for contributing to the state’s renewable portfolio standard. SRECs are certificates earned for every MWh of clean energy generated that can be sold through the SREC market to help offset the cost of solar.

Residential Clean Energy Grant Program

A much simpler incentive to understand than SRECs, Maryland’s residential clean energy grant program sends you a direct $1,000 rebate for installing a solar energy system of at least 1 kW.

Sales & Property Tax Exemptions

Solar installations in the Free State are exempt from paying both the sales and property taxes associated with your solar purchase and added property value.

Maryland Net Metering

Maryland has a statewide net metering program that allows you to sell excess solar energy back to the grid in exchange for credits that go toward any future utility bills.

How to Find the Best Solar Installer in Maryland

Maryland’s renewable energy incentive structure makes it unique in the solar market, focusing on SRECs, grants, tax exemptions and more. As stated before, these can be very effective but intimidating and difficult to navigate. This is why we stress the importance of finding a solar company with experience applying for these incentives and with a proven history of maximizing its customers’ solar investments.

If you’re ready to take the first step, we recommend comparing quotes from some of Maryland’s top solar installers. From there, you can see which company offers the best rates and ask more specific questions about incentives, experience and more.

To start getting free quotes from the best solar companies in Maryland, you can use this tool or fill out the form below.

FAQ: Best Solar Companies in Maryland

Who is the most reputable solar company in Maryland?

The most reputable solar company in Maryland may be SunPower, due to its size and national acclaim. However, there are plenty of reputable local companies as well, including Lumina Solar and Solar Energy World.

Is there a solar tax credit in Maryland?

Though there is no statewide tax credit, Maryland offers direct payments of $1,000 to homeowners that install solar via its residential clean energy grant program. The federal solar tax credit is also available to residents of Maryland, along with SRECs, net metering, and sales and property tax exemptions.

How do I find a reputable solar company?

If you’re looking for a reputable solar company in Maryland, you’re in the right place. We recommend starting with this list, narrowing in on your region, and gathering free quotes from the providers available to service your energy needs. From there, you can compare quotes to find the best value and speak with representatives to pinpoint which offer seems best for you.

Karsten Neumeister is a writer and renewable energy specialist with a background in writing and the humanities. Before joining EcoWatch, Karsten worked in the energy sector of New Orleans, focusing on renewable energy policy and technology. A lover of music and the outdoors, Karsten might be found rock climbing, canoeing or writing songs when away from the workplace.

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