15 Best Solar Companies in Walpole, NH (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Walpole based on:
Customer review scores
Service area for Walpole, NH
Company policies and services offered
Accreditations and certifications
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Average Walpole homeowner saves $1,601/year with solar panels
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Best Solar Companies in Walpole
Looking to go solar but still deciding on which company would be the best one for you? Although it can be hard to settle on a solar company, the search will pay off because going solar has many fantastic perks. Solar power isn't just good for the planet — your wallet will thank you too. After switching to solar power, you can save an average of $19,000 over 20 years, and this doesn't even include incentives.
Here, we’ll narrow down some of the top solar companies in Walpole to make your decision a little easier.To get free quotes from the top solar companies in Walpole, click the "get quote" button below.
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch Rankings for Solar Companies in Walpole



Northeast Solar
Clear Pricing Policy
Reliable Customer Support
Free Quotes
Prompt Service Delivery
Informative Resources
Limited information available on website
Services Offered
Solar Carports
Panel Installation
Battery Storage
Financing Assistance
Cleaning and Maintenance
Permit Assistance
Consultation



Sundial Solar
Clear Pricing Policy
Informative Resources
Free Quotes
Limited information available on website
Services Offered
Panel Installation
Tesla Powerwall
Permit Assistance
Battery Storage
Consultation
Financing Assistance

Granite State Solar
Clear Pricing Policy
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Panel Installation
Financing Assistance
Battery Storage


Valley Solar
Informative Resources
Reliable Customer Support
Prompt Service Delivery
Free Quotes
Clear Pricing Policy
Limited information available on website
Services Offered
Cleaning and Maintenance
Financing Assistance
Consultation
Off-Grid Solar Systems
Panel Installation
Tesla Powerwall
Solar Carports
Battery Storage

PV Squared Solar (Pioneer Valley Photovoltaics)
Informative Resources
Reliable Customer Support
Free Quotes
Limited information available on website
Services Offered
Panel Installation
Battery Storage
Consultation
Permit Assistance
Cleaning and Maintenance
Financing Assistance

Insight Solar
Informative Resources
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Limited information available on website
Services Offered
Financing Assistance
Panel Installation
Consultation

altE Store
Clear Pricing Policy
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Cleaning and Maintenance
Off-Grid Solar Systems
Panel Installation
Battery Storage
Grid-Tied Solar System

HB Energy Solutions
Informative Resources
Free Quotes
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Cleaning and Maintenance
Panel Installation

PosiGen
Free Quotes
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Consultation
Panel Installation
Battery Storage
Cleaning and Maintenance
Permit Assistance

SAVKAT SOLAR
Reliable Customer Support
Clear Pricing Policy
Free Quotes
Limited information available on website
Services Offered
Battery Storage
Financing Assistance
Consultation
Panel Installation
Cleaning and Maintenance
Grid-Tied Solar System
Methodology: How We Ranked the Best Solar Companies in Walpole
EcoWatch's solar experts analyzed each solar company in Walpole based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in Walpole
Below are some the criteria we examined specifically for New Hampshire solar companies
- Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
- Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
- Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
- Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
- Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
- Availability (10%): The bigger the service area, the higher the company will score.
- Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
- Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.
The Cost and Benefits of Solar in Walpole
When deciding on a solar company, most homeowners or business owners worry about the costs above all.The installation cost is just one important factor you should bear in mind when looking into getting solar panels. How much it'll cost and how much you can save depend on things including:
- Typical energy usage: The more energy your home uses on average and the greater your current electricity bills are, the more money you could save by making the switch to solar.
- The amount of sunlight your roof gets: This, and how your roof is set up, affects affect how much electricity your solar panels can make.
- Incentives: Along with the federal Solar Investment Tax Credit (ITC), which gives you a tax credit currently worth 0 of your overall installation cost, your state or local government may offer additional tax exemptions, credits or rebates that will help you save even more. Not including incentives, you can save an average of $19,000 over the first 20 years with your solar system, too.
- Your income and budget: This determines what model of solar panels you can buy.
Even though a solar panel system costs a decent chunk of money upfront, it can save you thousands of dollars in the long term. The question of how much, though, depends on a number of factors, including the kind of solar panels you get and your energy consumption.
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Adopting a renewable source of energy can greatly impact both the environment and your monthly expenses. To see how much, use the calculator below. You can also view our solar panel cost guide for Walpole, NH.
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Solar Incentives in Walpole
There are many reasons why adopting solar power is beneficial. One of them involves some government incentives that can help save you some money.In addition to the federal tax credit incentive, there are also some state- and city-level programs, which in almost all cases, can be claimed in addition to the federal incentive, so you get to save even more. Check out our article on solar incentives to see what incentives you can take advantage of.
Environmental Impact of Switching to Solar in Walpole
There are lots of reasons to trade traditional energy for solar power, like saving some money on utility bills and helping to reduce your carbon footprint.But you may be curious – how much exactly can you help the planet by making the switch to solar? In a city like Walpole where commute times can be pretty long, using solar power can help help reduce the carbon footprint of driving a lot.In fact, if you make the switch to solar power, you could reduce your carbon dioxide emissions by about 40 pounds each year. For those who want to help the environment, the upfront cost of solar is a small price to pay for reducing your carbon footprint.
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch's Walpole, NH Solar Company Rankings FAQs
Which solar power company is the best in Walpole?
In Walpole, Solaflect Energy is the most reputable local solar company. Our team of experts rates it 5.00 stars, so it's a good choice if you're looking to add solar panels to your roof.
What is the negative environmental impact of solar panels?
Solar panels can be harmful for the environment when manufacturers use toxic chemicals in the manufacturing process. Chemicals can make solar panels difficult to recycle safely once they’ve reached the end of their lifespan. Making solar panels needs a lot of energy as well. The energy payback period is about 1 to 4 years.
Are solar panels worth it?
Solar panels require a significant upfront investment that costs over ten thousand dollars, but whether or not solar panels are worth it depends on a variety of factors like local electricity rates and how much direct sunlight your roof gets.
When is the best time of year to install solar panels?
You can install solar panels whenever it's convenient for you, but consider doing it in the winter when the demand is less. With fewer homeowners going solar, you could potentially see faster installation times and more savings.
Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.
Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.