Best Solar Companies in New Hampshire

We compared 67 brands and chose the top solar energy companies

    • SunPower
    • Sunrun
    • ShopSolar

    Top Picks

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      Best Solar Companies in New Hampshire

      To choose our top picks for this guide, we compared popular solar companies on ratings and reviews, equipment options, warranties, availability and other factors. Read our full methodology for all the details. Our picks may be Authorized Partners that compensate us — this does not affect our recommendations or evaluations but may impact the order in which companies appear.

      Our top solar company picks

      1. SunPower
      2. Sunrun
      3. ShopSolar
      Why trust ConsumerAffairs?
      • Our recommendations are based on what reviewers say.
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      • Our moderators read all reviews to verify quality and helpfulness.

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      The 3 best solar companies reviewed


      Buyer's Choice Award Winner
      Max. panel efficiency
      Payment options
      Cash, loan, lease
      25 years
      Year founded
      2x Award Winner
      Selected for having one of the highest satisfaction rates for Best Customer Service and Best for Installation

      SunPower is a top national company with high-efficiency solar panel technology. We like that its SunVault storage battery is excellent for maximizing energy savings during peak rate times.

      What really sets SunPower apart is its seamless solar panel installation process, though. Local representatives evaluate your home energy needs, design a custom system, help secure any necessary permits and work out financing options.

      The company typically works with local installers, and SunPower’s monitoring app lets you track the system’s performance once the project is complete.

      SunPower benefits

      • 35+ years of experience
      • Comprehensive 25-year warranty
      • Battery storage options 
      • Ongoing support

      SunPower is a reliable solar company with comprehensive services, but it’s not the cheapest option. Your upfront costs tend to be a little higher than other companies. After all, you get what you pay for.

      SunPower’s “Complete Confidence Warranty” covers your entire solar energy system for 25 years, including the panels, inverter, racking and monitoring. The company repairs or replaces equipment at no cost to you (including labor and shipping).

      Financing options

      • Loans: Qualified customers can find reasonable rates with no money down. All financing approvals and processing happen through the mySunPower online portal.
      • Leases: Customers pay a monthly fee to use solar panels that SunPower owns. SunPower reimburses you if your solar system doesn’t perform as guaranteed. You can transfer the agreement to a new buyer if you sell your home.
      Our pick for solar leases


      Max. panel efficiency
      Payment options
      Cash, loan, lease
      25 years
      Year founded

      Sunrun has a lease program that lets you go solar without a huge upfront investment. There’s no initial charge for any panels or other equipment, installation or permits. Sunrun owns the system, and you pay a fixed monthly fee to use it.

      Robert in Concord had good things to say about Sunrun’s leasing program. “I looked at some other [companies], and it was gonna cost me at least $20,000 upfront to buy these panels and get them put up on the house,” he told us. Robert was also “very impressed by the crew and the work they did.”

      Another customer, Gerald in Barrington, said: “We picked the program that we thought was the best way to go and so far, it's worked out really well. The installment crew did an awesome and neat job.”

      Robert in Litchfield described the enrollment process as “effortless and painless” and customer service reps as “friendly and helpful.”

      He also said his only other leasing option was more expensive by 5 cents per kilowatt-hour. “Since installing solar, I love getting my energy bill from Eversource now. It's all of $12.95 and it's been great. It's saving me money,” Robert told us.

      Sunrun benefits

      • Flexible payment options
      • Custom solar designs
      • Convenient monitoring app
      • Battery storage options 
      • Solar storage battery and EV charging solutions

      Seasonality might affect your energy production, particularly in colder months. “For the summer months, Sunrun has done beautifully. But with winter coming on, I didn't realize that it would be that significantly dropped as far as how many kilowatts I get per day. But on the whole system, I'm very happy,” Robert in Concord told us.

      In general, monthly lease payments can seem cheaper at first but add up over the long run, sometimes costing more than buying the system outright. Leasing also makes you ineligible for the 30% federal solar tax credit and can complicate home sales.

      » SOLAR PANELS: Lease vs. buy

      For those who purchase a solar system, Sunrun's comprehensive warranty covers equipment replacements and repairs, including parts and labor, for 25 years. The company provides free maintenance and repairs on leased solar systems.

      Financing options

      • Loans: As of publishing, available discounts include $0 down for some financing plans. Monthly payments vary.
      • Leasing: You can lease solar equipment for a minimal upfront payment. Monthly payments vary. Contracts typically last for 25 years.


      Buyer's Choice Award Winner
      Max. panel efficiency
      Payment options
      Cash, loan
      Year founded
      1x Award Winner
      Selected for having one of the highest satisfaction rates for Best Customer Service

      ShopSolar is an awesome place to buy solar equipment for DIY projects. We like that ShopSolar has a nice selection of equipment, fast deliveries and good communication.

      You can find new and used solar panels, solar storage batteries, inverters, charge controllers, cabling and hardware, mounts and racks — everything needed for an off-grid or hybrid setup. It’s great if you want to install solar equipment on homes, RVs and outbuildings.

      The online company stocks brands like Panasonic, REC, Renogy, Canadian Solar and EcoFlow.  It also sells custom solar kits, and orders typically arrive within 10 business days.

      ShopSolar benefits

      • Free shipping
      • Price-match guarantee
      • 30-day return policy
      • Lifetime customer support

      Some customers experienced problems with their purchases, such as damaged or faulty equipment, but ShopSolarKits generally resolved these issues with refunds or replacements.

      The important thing to keep in mind is that ShopSolar doesn’t offer professional installation services. It’s best to know a little about solar panels and electrical work. Otherwise, you might get frustrated with the process or install something incorrectly.

      » DIY SOLAR PANELS: Pros, cons and installation guide

      ShopSolar is an authorized distributor of all the brands it sells, so all solar equipment is covered by the individual manufacturer warranties. If you run into a warranty issue, reps can help you contact the equipment manufacturer.

      Payment options

      • Online payments: ShopSolar accepts Visa, Mastercard, American Express, Discover, PayPal, Apple Pay, Google Pay, Venmo, Shop Pay and Diners Club International.
      • Financing: ShopSolar partners with Affirm on financing. Customers can make payments every two weeks or once a month for up to 36 months. Annual percentage rates (APRs) range from 0% to 36%.

      New Hampshire solar panel buyers guide

      If you're thinking about going solar in New Hampshire but aren’t sure where to start, ConsumerAffairs is here to help you compare your options and get the best deal. Here’s what to expect and what to look out for.

      Key insights

      • Residential solar panel installations cost anywhere from $10,000 to $30,000 or more. The size of your solar panel system is the biggest factor in total costs.
      • The federal solar investment tax credit (ITC) is the most significant way to lower the cost of installing solar panels. New Hampshire also has additional financial incentives to make going solar more affordable.
      • Leasing your solar equipment can minimize the initial cost, but you won’t be eligible for the federal solar ITC because you won’t own the system.

      How much does it cost to install solar panels in New Hampshire?

      Solar panel costs in New Hampshire are a little higher than the national average of around $18,000 for a 6-kilowatt system (that price drops to $12,600 after factoring in the full federal solar investment tax credit).

      The size of your system plays a big role in how much it costs overall. It also depends on whether you want a solar storage battery, if you need to replace your roof first and other factors.

      » COMPARE: Solar costs in other states

      How can I pay for solar panels?

      Like buying a car, you have the option to pay the full cost of solar panels upfront, but many people choose to finance their system through a solar loan. You can also lease the equipment. Leasing can seem cheaper upfront, but you’ll be disqualified from some of the best financial incentives, including the 30% federal solar investment tax credit.

      If you’re considering a solar loan or lease, always ask:

      • Is there a down payment?
      • How much will I pay per month?
      • Will my monthly payments increase, and if so, by how much?
      • Do you put a lien on my house?

      Available solar incentives

      The federal solar investment tax credit (ITC) is the most significant way to make installing panels more affordable. The ITC gives you a federal income tax credit worth 30% of your solar power system’s total cost, including equipment, labor and permits. New Hampshire homeowners can also take advantage of solar tax breaks, rebates and grants.

      » EXPLORE: New Hampshire solar incentives

      How do I choose a solar installation company in New Hampshire?

      The best solar companies have a few things in common: high-efficiency equipment, transparent contract terms, NABCEP certifications and long warranties (at least 10 to 25 years). Here are a few things to look for when comparing solar panel installers.

      • Good reputation: Research the company's track record and read reviews. Look out for red flags — complaints about misleading sales tactics, equipment failures, billing issues and lack of communication are common themes in negative solar company reviews.
      • Long time in business: Look for companies with plenty of experience installing solar panels in New Hampshire. It makes it easier to navigate regulations, permits and available financial incentives.
      • Comprehensive service: Consider if you want a solar storage battery, electric vehicle (EV) charger or a monitoring system to ensure optimal output. It’s also smart to ask about critter guards in New Hampshire.
      • Free consultations: Get multiple quotes from different solar companies to compare prices and services. Be cautious of companies that provide significantly lower quotes than others — this may indicate lower quality.

      » TIPS: Get the best solar quotes

      Are solar panels worth it in New Hampshire?

      New Hampshire has a good climate for solar panels, and several financial incentives can help make the upfront investment more affordable. For many people, solar panels are worth it for the long-term cost savings and environmental benefits. For others, it’s more about gaining energy independence.

      But winter dips in solar production are a challenge to consider for some. New Hampshire only averages 3 to 3.5 peak sunlight hours per day, so your solar savings may have more seasonal variance than it would in sunnier states.

      Edward in Newmarket went solar for environmental reasons: "We continue to pour carbon into the atmosphere, and we're all gonna pay that price, so we felt going solar was the right thing to do." His current electric bill is only $13 per month to stay grid-connected.

      Homes well-suited for solar have ample south-facing roof space without too much shading from trees. Most solar installers offer free site evaluations to provide custom quotes and discuss potential cost savings to see if going solar could work for you.

      » STILL NOT SURE? Solar energy pros and cons

      Methodology: How we picked the best solar companies in New Hampshire

      The ConsumerAffairs Research Team objectively evaluates solar providers to highlight those best equipped to meet most homeowners' needs. To choose our top picks for this guide, we started with a list of popular providers. First, we narrowed it down to the ones available in New Hampshire. We then weighted several key features to get our final rankings:

      Reviews, ratings and testimonials: 50%
      We analyzed verified customer reviews and ratings to gauge real-world satisfaction.

      Equipment selection: 20%
      We evaluated each company’s selection of solar panels, storage batteries and inverters. Those with proprietary technology or a wide equipment selection from trusted brands ranked highest.

      Warranties: 20%
      We compared product and craftsmanship warranties as well as performance guarantees. All of our top picks have warranties that last at least 10 to 25 years.

      Overall reputation: 10%
      We considered each company's history, mission and value. Companies with generally positive feedback on our site scored highest in this aspect.

      Guide sources

      ConsumerAffairs writers primarily rely on government data, industry experts and original research from other reputable publications to inform their work. Specific sources for this article include:

      1. EnergySage, “New Hampshire solar panels: local pricing and installation data.” Accessed Jan. 24, 2024.
      2. DSIRE, “New Hampshire Solar Programs.” Accessed Jan. 17, 2024.
      3. Solar Energy Industries Association, "New Hampshire Solar." Accessed Jan. 22, 2024.

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