
- Max. panel efficiency
- 22%
- Workmanship warranty
- 10 years
- Year founded
- 2007
If you’re ready to go solar in New Hampshire but aren’t sure where to start, you’re not alone. ConsumerAffairs is here to help you compare your options and get the best deal.
Our research team compared popular solar companies on ratings and reviews, equipment options, warranties, availability and other factors to select the top picks for this guide. Our picks may be Authorized Partners that compensate us — this does not affect our evaluations but may impact the order in which companies appear. Read our full methodology for all the details on how we make solar company recommendations.
Company | Customer rating | Our pick for | Pro install | Max. panel efficiency | Panel warranty | Payment options | In-house financing | Year founded | |
---|---|---|---|---|---|---|---|---|---|
![]() | 4.1
3,121 reviews
3,121 reviews
| Solar leases | 22% | Varies | Cash, loan, lease | No | 2007 | Get Started | |
![]() | 4.8
174 reviews
174 reviews
| DIY projects | Varies | Varies | Cash, loan | No | 2018 | Learn more |
Our top solar company picks
Jump into our guides and start learning
We’ve heard from more than 100,000 verified solar customers since 2018. A couple of things we know for sure: People like powering their homes with a reliable source of cheap, clean energy. They don’t like getting into solar contracts that don’t meet their expectations. Here’s what to expect and what to look out for when buying solar panels in New Hampshire.
In New Hampshire, a typical residential solar panel system costs $11,655 to $33,300, depending on the size of your system and what financial incentives you qualify for.
Jump to insightThe federal investment tax credit (ITC) is the most significant financial incentive for buying solar panels in New Hampshire. You can also lease a system with little upfront cost, but you aren't eligible for the ITC.
Jump to insightMany solar customers are happy with the service, installation and cost savings. Others felt misled by pushy sales tactics and ended up with monthly bills higher than expected. Watch out for door-to-door solar scams that attempt to gather your personal information, misleading claims, false advertising and aggressive sales tactics.
Jump to insightGoing solar in New Hampshire
In more than a dozen New Hampshire towns, off-grid electricity is legal because these areas have no zoning laws at all. In Concord, however, you need building and electrical permits before solar panel installation. Often, a good solar contractor will navigate the permitting process on your behalf and include the permit fees in your overall costs.
» BEST STATES FOR SOLAR: New Hampshire ranked No. 17 in 2024
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.
» TIPS: Get the best solar quotes
Average solar panel costs in New Hampshire typically range between $11,655 to $33,300. The size of your solar panel system is a big factor in your total cost. It also depends on what incentives you’re eligible for, the condition of your roof and how much sunlight exposure it gets.
Most installers set the price according to the system's wattage, with a typical cost between $2.50 and $5 per watt. In New Hampshire, the cost per watt is $3.33.
Average solar installation cost by system size in New Hampshire
5 kW | 6 kW | 7 kW | 8 kW | 9 kW | 10 kW | |
---|---|---|---|---|---|---|
Before federal tax credit | $16,650 | $19,980 | $23,310 | $26,640 | $29,970 | $33,300 |
After federal tax credit | $11,655 | $13,986 | $16,317 | $18,648 | $20,979 | $23,310 |
This doesn’t include the cost of a solar storage battery — which sometimes costs as much as the panels. Solar batteries are a must if you want real energy independence and essential if you go off-grid. Permitting, utility fees and maintenance also add to the cost of going solar.
Getting solar panels is similar to buying a car. You could pay cash, but many people finance their system through a solar loan. If you have enough savings to pay upfront, the biggest advantage is avoiding interest charges.
Leasing solar equipment is an attractive option for people who don’t want to get a loan or be responsible for maintaining a system. This biggest downside is that you’ll be disqualified from many of the best financial incentives, like the 30% federal solar tax credit. It also might make your house harder to sell since a new buyer will have to take over the lease agreement.
» SOLAR PANELS: Lease vs. buy
New Hampshire residents may take advantage of local solar programs, but the federal solar investment tax credit (ITC) is still the best financial incentive for most homeowners. The ITC reduces your federal tax liability by 30% of the cost of your panels and other equipment, labor and additional features for monitoring the system.
The ITC drops to 26% in 2033 and then 22% in 2034.
For example, if you spend $10,000 installing a solar panel system, the ITC is worth $3,000. If you owe $15,000 in taxes, the ITC reduces what you owe to $12,000. You don’t get these benefits automatically, though. You have to claim your solar equipment, labor and permits on your federal taxes for the same year you started using your system on Form 5695.
» EXPLORE: New Hampshire solar incentives, tax credits and rebates
The general consensus is that solar panels are worth it in New Hampshire. On average, homeowners can avoid $69,087 in total utility costs over 25 years.
Assuming an upfront purchase, it takes about 7.5 years to break even (when your savings with solar panels make up for the cost). However, the return on investment depends on the efficiency and size of your solar system.
Solar panels typically last 25 to 30 years.
ConsumerAffairs has heard from thousands of people who have already gone solar. Many reported significant savings on their electricity bills after installing solar panels. Some just appreciate the environmental benefits of using solar energy. For a lot of residents, it’s some combination that makes installing solar panels worth it in the long run.
For instance, 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." Now, his current electric bill is only $13 per month, and that’s just the fee to stay grid-connected.
» STILL NOT SURE? Solar energy pros and cons
Plenty of unshaded roof space that faces south or west is best for optimal sun exposure. Solar photovoltaic (PV) technologies, more commonly known as solar panels, absorb sunlight and convert it into usable electricity. If you have a lot of shading around your house, they might not get enough sun to power your home. It’s also smart to upgrade any old, inefficient appliances first. Reducing your electrical loads now means you can get a smaller system, which will be cheaper.
Use the National Renewable Energy Laboratory’s PVWatts Calculator to estimate how much electricity a solar panel can produce over a year on your house — just type in your address. Project Sunroof is a free solar savings estimator powered by Google Earth imagery.
As a rule of thumb, if your roof is more than 10 years old, consider replacing it before going solar. Installing solar panels on an old roof might mean you have to remove the panels, replace your roof and then reinstall the panels. This costs around $5,000 for a 19-panel setup.
We are not aware of any legitimate programs for free solar panels in New Hampshire. However, you can lease a solar energy system or enter a power purchase agreement (PPA) with little to no upfront costs. Just look out for scams that promise free solar panels — they can end up costing you quite a bit of money.
Net metering lets homeowners get credits for extra electricity their solar panels generate. In New Hampshire, the credits go toward your next month’s power bill. At the end of the year, you can cash in the credits left over after the previous months. New Hampshire Electric Cooperative, Eversource, Liberty Utilities and Unitil all offer net metering.
A solar broker is a middleman or intermediary who helps connect homeowners with solar installation companies. A solar installer specializes in designing, procuring and installing solar panels and related components. Ultimately, deciding between a solar broker and a solar installer depends on how much you want to be involved in the process. A broker can be helpful if you value convenience. If you want more control and potentially lower costs, it’s best to work directly with a solar installer.
New Hampshire’s power purchase agreements are focused on large-scale utilities at this time. The Granite State enacted a new law in August 2023 that allows utilities to sign long-term agreements with energy producers, potentially shielding ratepayers from volatile energy prices and lowering costs by encouraging the development of clean energy projects within the state, according to the New Hampshire Bulletin.
These agreements incentivize the creation of renewable energy infrastructure, increasing energy independence and promoting grid stability for the benefit of New Hampshire ratepayers.
Be wary of “free solar panel” offers, unrealistic savings claims and high-pressure sales tactics — these are all signs of a solar panel scams. Fraudsters might pretend to represent real companies — or even an Eversource Power employee. They could also offer nonexistent government rebates to trick you. Always research companies thoroughly, get multiple quotes from reputable sources, and never feel pressured to make an immediate decision about installing solar.
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: 40%
We analyzed solar company reviews by verified solar customers to gauge real-world satisfaction. Companies with the most positive recent ratings left by local reviewers on our site were given preference.
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%
A long warranty is important — it shows that a company stands behind its products and services. We compared companies on both equipment and craftsmanship warranty terms. All of our top picks for professional installation have warranties or production guarantees of at least 10 to 25 years.
Financing and payment options: 10%
We gave preference to companies that offer multiple payment and financing options for transparent terms and conditions.
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.
To recap, our top picks for the best solar companies in New Hampshire are:
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:
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Company | Customer rating | About | Learn More |
---|---|---|---|
![]() | 4.8
174 reviews
| Solar energy solutions. Offers solar energy kits, DIY solar kits and lithium batteries. Small- and large-scale equipment. Online purchasing with shipping to 48 states. Partner installer network. Financing and warranty available. | Read reviews |
![]() | 4.1
3,121 reviews
| Sunrun offers free energy consultations in 20 states. 15 years of experience. Sells and leases customized residential solar energy systems. Solar advisors offer one-on-one consultants to guide you through the details. | Get Started |
![]() | 4.1
60 reviews
| Clean energy supplier through wind and solar sources. Works with utility companies to deliver clean energy. Solar-only and solar-plus-wind energy plans available. No long-term contracts. Cancel anytime. Available in select states. | Read reviews |
![]() | 1.9
551 reviews
| Low-profile design with no visible hardware. One of the country’s largest solar installers. Easy-to-use app to customize settings. Offers in-house financing options. Price-match guarantee. | Read reviews |
![]() | 4.0
View profile
| Residential and commercial solar installer servicing California, Connecticut, Florida, Massachusetts, New Hampshire, Pennsylvania and Rhode Island. Offers financing options such as cash, loans or PPAs. | Read reviews |
![]() | 2.0
View profile
| Residential and commercial installation and maintenance across 29 states and Washington, D.C. Tesla Powerwall sales and installations. Hybrid and off-grid residential installations available. | Read reviews |
![]() | 1.0
View profile
| Solar installer offering residential solar in four states as well as commercial and agricultural solar in sixteen states. Solar maintenance services also available. Financing available in the form of loans, leases or PPAs. | Read reviews |
![]() | 1.0
View profile
| Home solar installation across 25 states and Washington, D.C. 25-year 100% replacement warranty. Pay with cash or qualify for zero-down financing. 24/7 monitoring of solar system installations. Free solar system design proposal. | Read reviews |
![]() | 1.0
View profile
| Sells DIY solar and wind energy kits. Ships across all of the U.S., except Alaska and Hawaii. Accepts PayPal Credit, Mastercard, Visa, Discover and American Express. Offers products from brands like Briggs & Stratton and Sol-Ark. | Read reviews |
![]() | No reviews | Installs mostly grid-tied residential and commercial solar energy systems in New Hampshire. Financing is available on products from Enphase Energy, REC Group and SolarEdge. 25-year production warranty on major components. | |
![]() | No reviews | Area-based solar installer for homes and businesses across the entire United States. Also offers roofing and engineering services. Financing is available through loans. Systems include SunPower components. | |
![]() | No reviews | Commercial and community solar services throughout the southeastern United States. Solar farm development and industrial solar services. EV charger and solar storage installation services also offered. | |
![]() | No reviews | Residential and commercial solar energy system installations as well as energy monitoring throughout New England. Offers 25-year warranties on systems with parts from SunPower. Free site evaluations available. | |
![]() | No reviews | Headquartered in New York City and London. Performs solar installation services worldwide. Products from SMA, SunPower and Xantrex. Installs building-integrated panels in addition to roof and ground-mounted systems. | |
![]() | No reviews | A solar installer and roofer serving homes and businesses in parts of Delaware, Maryland and Pennsylvania. System components from Enphase Energy and the REC Group. Warranties include 25 years on panels and labor. | |
![]() | No reviews | Commercial and industrial solar, including large-scale projects plus energy audits, EV charging and lighting systems. Offers installations across all 48 states in the U.S. mainland. Products from Schneider Electric and Siemens. | |
![]() | No reviews | Residential and commercial solar panel design, installation and maintenance. Serves worldwide, including Middle East, Asia, Europe and the U.S. Financing options and warranties available. | |
![]() | No reviews | Specializes in in-home residential solar installation. Offers Mosaic, Sunrun, SolarEdge and Tesla products. Serves California, Connecticut, Illinois, Massachusetts, New Hampshire, New Jersey, Rhode Island and Utah. | |
![]() | No reviews | Solar installer serving businesses in New England, the Mid-Atlantic, the South and the Midwest. Also offers operation and maintenance services for solar energy systems in these areas. Utility-scale installations available. | |
![]() | No reviews | Commercial solar energy system installation plus EV charging across the continental U.S. Other construction-based services include data center construction, electrical engineering, infrastructure development and procurement. | |
![]() | No reviews | Commercial and large-scale solar energy system installations plus HVAC services, refrigeration, LED lighting and battery sales. Serves the U.S. and some international areas. Financing options available. | |
![]() | No reviews | Commercial and utility-scale solar panel installations, energy monitoring and roofing services plus solar mounts and canopies. Serves the Northeast and the Midwest regions. Financing options and 25-year warranties available. | |
![]() | No reviews | Many solar panel brands available. Sells solar panels, backup batteries and solar inverters. Three different financing types offered with multiple lender options. Costs typically range from $8,000 to $32,000. | |
![]() | No reviews | Residential and commercial solar installations, generators and electrical services in parts of Maine and New Hampshire. Offers brands like Briggs & Stratton, Champion Power Equipment, Generac Power Systems and Samsung. | |
![]() | No reviews | Sells DIY solar kits throughout the U.S. Kits can be ground- or roof-mounted and include well-known brands like Enphase, Sol-Ark, IronRidge and SunSpark. Solar loans are available. | |
![]() | No reviews | Solar parts dealer and installer offering systems for homes, businesses, industrial buildings and cities. Also offers small specialty solar systems. Installations worldwide. Equipment from a variety of manufacturers. | |
![]() | No reviews | Solar installations for homes and businesses in New Hampshire. Fixed-rate financing available for up to 12 years. Warranties include 25 years on panels and 12 years on workmanship. | |
![]() | No reviews | Residential solar installation. Offers products from many companies, including Panasonic and SunPower. Founded in 2012. Services customers in three states: Massachusetts, New Hampshire, and South Carolina. | |
![]() | No reviews | Solar installer offering systems for homes and businesses. Also offers small solar for RVs and boats, as well as wind systems. Installs nationwide. Offers products from Enphase Energy, Kyocera, Schüco and Sharp. | |
![]() | No reviews | Specializes in commercial, industrial, governmental and utility-scale solar. Performs large-scale engineering and contracting projects worldwide. Large-scale EV charging station design and implementation. | |
![]() | No reviews | Residential and commercial solar installations throughout Maine, Massachusetts and New Hampshire. Offers a two-year residential workshop warranty and five-year commercial workshop warranty. | |
![]() | No reviews | Online solar marketplace. Connects you to solar panel installers and lenders. Online quotes in less than 60 seconds. Nationwide availability. Vetted installer network. Free quotes. Federal tax incentives for panel installation. | |
![]() | No reviews | Specializes in commercial and residential solar installations. Offers five-year installation warranties and five- to 25-year manufacturer's warranties on components. Carries products from AllEarth Renewables, SMA and Sol-Ark. | |
![]() | No reviews | Solar installations as well as roofing, gutters, siding and masonry. Serves homes in nine Pennsylvania counties and businesses in surrounding states. Offers a 25-year power generation warranty and 10 years of wind protection. | |
![]() | No reviews | Commercial, institutional, municipal and utility-scale solar energy system installations. Also offers construction services, power distribution, communications infrastructure and transportation contracting throughout the U.S. | |
![]() | No reviews | Residential and commercial solar panel installer offering services across the entire continental United States. Also offers EV charging solutions. Financing options and warranties available. | |
![]() | No reviews | Specializes in commercial and residential solar installations. Finance with capital leases, operating leases or pay upfront. Offers 25-year manufacturer's warranties on products and variable-term workmanship warranties. | |
![]() | No reviews | Commercial and industrial solar installations, specializing in utility-scale installation. Carries JA Solar, LONGi, and SMA components. Founded in 1954. Service available nationwide. | |
![]() | No reviews | Residential, commercial and agricultural DIY solar energy system kits and products shipped across the continental United States. Offers brands like EG4 Electronics and Hoymiles. Schedule a free consultation today. | |
![]() | No reviews | Residential and commercial solar energy system installations plus solar hot water heaters and carbon cleaning engines throughout New England. Product selection includes brands like Canadian Solar, Enphase, LG and Qcells. | |
![]() | No reviews | Commercial solar installation and monitoring across the United States. Founded and headquartered in New Jersey. Finance through PPAs or loans. 25-year manufacturer’s warranty on panels. Been in business since 2009. | |
![]() | No reviews | Paradise Energy Solutions specializes in residential and commercial solar panel installation, energy storage, maintenance and other services. Service areas extend across parts of the Northeast, Mid-Atlantic and Appalachia. | |
![]() | No reviews | Residential and commercial solar energy system installation as well as maintenance, monitoring and electrical services in the Northeast. Financing available through loans. Headquartered in Vermont and founded in 1972. | |
![]() | No reviews | Offers several types of plug-and-play DIY solar kits for homeowners to install without additional labor costs. Shipping throughout the United States. All products come with a 30-day return policy and a minimum one-year warranty. | |
![]() | No reviews | Residential and commercial solar energy system installation and roofing services for 31 states, including Idaho. Offers 25-year system and 10-year roof warranties. Free estimates available. | |
![]() | No reviews | Residential and utility-scale solar, solar water heaters and solar attic fans in D.C., Delaware and parts of Pennsylvania, Maryland and Virginia. Offers 12-year inverter warranties plus 25 years performance on panels. | |
![]() | No reviews | Comprehensive residential and commercial solar panel system design, installation, maintenance and removal plus EV charging systems. Serves New Hampshire, New York state and Vermont. Free consultations. | |
![]() | No reviews | Residential, commercial and multifamily solar installations, solar water heating and solar pool heating in the eastern United States. Offers brands like Enphase Energy, SMA and SolarEdge. Finance with a loan. | |
![]() | No reviews | Solar energy system and water heater installer serving 13 states and the District of Columbia. Manufactures some solar components. Financing available through loans or power purchase agreements. | |
![]() | No reviews | Commercial solar energy system installation plus energy storage and EV charging across the U.S. Offers a 25-year warranty on solar array equipment. Finance with a solar loan, C-PACE loan, PPA or lease. | |
![]() | No reviews | Residential solar installation, commercial solar installation, solar water heating and installation, and solar pool heating and installation. Founded in 1986. 10-year warranty on panels. Offers loans and net metering. | |
![]() | No reviews | Residential solar energy system installations, energy storage, solar monitoring and roofing services in 40 states nationwide. Offers brands like SunPower and Enphase Energy. Finance through a loan, lease or PPA. | |
![]() | No reviews | Sells DIY kits for installing solar energy systems. Ships to the lower 48 states. Offers a 15-year manufacturer's warranty and 25-year performance warranty on solar panels from AXITEC. Pay upfront or through a loan. | |
![]() | No reviews | Commercial, nonprofit, military and industrial installation of solar thermal water heating systems in the United States. Offers brands like SOLARHOT. Pay upfront or finance through a loan. | |
![]() | No reviews | Online retailer of solar DIY kits and other renewable energy products such as solar-powered lights, wind turbine kits, composting supplies and more. Offers free shipping on orders over $75. | |
![]() | No reviews | Installs solar energy, solar hot water, solar pool heating and lighting for residential and commercial projects of all sizes. Offers installation services across the United States, plus sales and customer service worldwide. | |
![]() | No reviews | Residential and commercial solar installation, energy storage, EV charging and solar training across parts of Canada and the U.S. Offers manufacturer’s warranty on products like Tesla Powerwall. Free quotes available. | |
![]() | No reviews | Residential solar, commercial solar and agricultural solar installation. Offers products from Enphase, Fronius, SolarEdge and LG. Covers 13 states. Offers warranties. No financing available; upfront payments only. | |
![]() | No reviews | Full-service installer of roof- and ground-mounted solar energy systems in New Hampshire. Also provides batteries and generators. Free quotes for both residential and commercial projects. Multiple financing options available. | |
![]() | No reviews | Commercial solar installation services. Covers businesses in the lower 48 states. Payment options include solar loans and power purchase agreements. Relies on manufacturer warranties. | |
![]() | No reviews | Residential and commercial installation service available worldwide, including special custom projects. Uses components by Enphase Energy and SMA. Service inspections available to ensure system fidelity. | |
![]() | No reviews | Headquartered in Tucson, Arizona, and performing installations nationwide. Installs residential and commercial solar electric systems. Offers grid-tied, off-grid, battery storage and EV charging. | |
![]() | No reviews | Residential, commercial and agricultural installation and repair of solar energy systems plus energy storage and EV charging in 21 states and Washington, D.C. Offers production guarantees on systems. Finance with a PPA. | |
![]() | No reviews | Phoenix, Arizona-based solar installer specializing in residential, commercial and industrial solar installations. Offers services across the entire United States. Also installs EV chargers. | |
![]() | No reviews | Energy management company offering commercial and residential solar design and installation worldwide. Headquarters in Lehi, Utah. Has completed more than 5,000 projects around the world. | |
![]() | No reviews | Solar installer serving homes in the mid-Atlantic region with solar power and water heating. Offers solar for businesses globally. Financing available through loans. Offers brands like OutBack Power, Sharp and Xantrex. | |
![]() | No reviews | Based in Kansas. Offers solar energy system installations to businesses across the United States. Founded in 2006. Provides lighting services as well as energy auditing services and assessments. | |
![]() | 3.1
44 reviews
| Freedom Forever specializes in residential solar panel installation and solar storage solutions. Service areas extend to parts of the West, Northeast, South and Midwest. | Learn More |
![]() | 1.0
View profile
| Provides solar panel installation and battery storage. Partners with businesses to lower costs. Offers financing options. 10+ years experience. Installations take 24-48 hours. | Get a Quote |
![]() | No reviews | Offers residential solar solutions. Services 26 states nationwide. Fill out a form online for a free consultation and quote. Partners with GivePower Foundation, an NGO based in Texas. | |
![]() | No reviews | Kayo Energy is a solar installer based in Tempe, Arizona. Service areas extend across parts of the Western United States. | |
![]() | No reviews | Sells residential and commercial solar energy systems nationwide. Wide selection of brands. Installation is through contractors or DIY. Lifetime tech support in addition to manufacturer’s warranty. |