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5 Best Solar Companies in New Hampshire (2024 Guide)

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Author Image Written by Tamara Jude Updated 04/25/2024

Despite having one of the nation’s smaller solar markets, New Hampshire is dedicated to expanding its renewable energy potential. The state aims to generate at least 25.5% of its electricity from clean energy by 2025. Using more solar energy will also help its residents save on higher-than-average electricity rates. According to the U.S. Energy Information Administration (EIA), New Hampshire residents pay 30 cents per kilowatt-hour (kWh)—nearly double the national average.

Our team spent over 60 hours researching leading solar companies on the national, regional, and local levels. We’ve chosen the best solar companies in New Hampshire, plus provided tips for choosing the right solar installer for your home.

Key Takeaways

The best solar companies in New Hampshire are Sunrun for their flexible solar leasing options, and Venture Solar for their quick installation process. Our findings are based on a synthesis of user reviews, expert interviews, and a survey of 1,000 homeowners.
New Hampshire offers a renewable energy rebate program that allows solar owners to receive a rebate of up to $1,000.
The average solar system in New Hampshire costs $22,140 before taking advantage of solar incentives. After applying the federal tax credit and New Hampshire’s rebate, the cost comes out to around $14,498 on average.

Compare Solar Companies in New Hampshire

Company Star Rating Warranties Payment Options Link
10–25 years Full purchase, loan, lease, PPA GET QUOTE
25 years Full purchase, loan, lease GET QUOTE
Varies Full purchase, loan, lease, PPA GET QUOTE
25 years Full purchase, loan, lease, PPA GET QUOTE
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New Hampshire’s Top Solar Energy Companies

Sunrun: Best Solar Panel Leasing
Venture Solar: Best Northeast Regional Installer
LGCY Power: Best Solar Consultation
All Energy Solar: Best Full-Service Installer
SunPower: Best High-Efficiency System

Our Top Picks for Solar Panel Installation in NH

Learn more: SunPower review

Sunrun Best Solar Panel Leasing
  • Why we chose it: Sunrun offers two leasing options for homeowners uninterested in system ownership. Both options include 25-year comprehensive coverage and little to no money down.
  • Payment Options: Full purchase, loan, lease, power purchase agreement (PPA)

Learn more: Sunrun review

Pros and Cons
Pros Added insurance protections for theft or damage EV chargers and battery add-ons Multiple financing options, such as two lease types Cons 25-year warranty limited to lease and prepaid customers Online reviews call out delayed repairs
Warranty and Financing

Sunrun offers a 10-year comprehensive warranty that includes product, roof penetration, and workmanship coverage. Leasing customers receive an extended 25-year warranty that includes insurance protection for theft and damage.

Reputation and Awards

Sunrun earned DroneDeploy’s 2022 Guardian of Safety Award for using drone technology with its site assessments. In 2021 and 2022, Sunrun received 14 awards from Comparably, including Best Company Culture, Best CEOs for Diversity, and Best Company for Women.

Sunrun has an A+ rating with BBB and is accredited. Leased customers appreciated the complete warranty coverage, but other homeowners voiced concerns about delayed installations and poor customer service.

Learn more: Sunrun review

Venture Solar Best Northeast Regional Installer
Pros and Cons
Pros High-efficiency solar panels through SunPower System monitoring via smart devices and computer Two-month installation turnaround, per the company Cons Limited panel selection Phone number required for online quotes No solar battery options
Why We Chose Venture Solar

Venture Solar focuses on a smaller regional coverage area to provide a more personalized experience. As a SunPower dealer, the company offers high-efficiency solar panels with higher-than-average energy production. These all-black panels blend into most roof designs, providing a more inconspicuous rooftop installation. Additional protection includes critter guards to keep pests away from your system.

Venture completes its installation with in-house teams, leading to a quicker and cleaner process. The company uses drone footage for its roofing assessments for improved measurements. Venture Solar states its installations take one day to complete, with an average two-month timeframe from design to activation.

Warranty and Financing


Venture Solar includes a 25-year bumper-to-bumper warranty covering service, parts, and power output.

Financing Options

✔ Full purchase
✔ Loan
✔ Lease

Reputation and Awards

The company maintains an A+ rating with the BBB but is not accredited. Customers praised Venture Solar for its courteous and knowledgeable sales team, but some cited cases of numerous failed inspections due to project issues.

Learn more: Venture Solar review

LGCY Power Best Solar Consultation
Pros and Cons: What Makes Them Different?
Pros Certified partner of Sunrun, one of the largest U.S. solar companies Hands-on, guided installation process from start to finish Library of informative blogs and solar power guides Cons Limited website details on offered solar products Some customer reviews noted customer support communication issues Varying product warranty lengths, depending on equipment
Why We Chose LGCY Power

LGCY Power offers a thorough solar consultation process, helping customers build the best custom system for their home. Customers receive a dedicated energy consultation that guides them through the solar panel installation. Its team also assists with applying for solar incentives, helping homeowners lower their solar panels costs. Its website includes guides and blogs on solar energy systems, financing options, and other solar-related topics.

The company works with Sunrun as a certified partner, offering its catalog of high-quality solar panels, inverters, and solar batteries. LGCY includes manufacturer and workmanship warranties. However, warranty length varies between products. LGCY also offers its customers ongoing system maintenance and 24-hour monitoring.

Warranty and Financing

LGCY offers product, inverter, and workmanship warranties. However, warranty length varies between its products.

Financing Options
✔ Full purchase
✔ Loan
✔ Lease
✔ PPAs

Reputation and Awards

LGCY ranked 17th on the 2023 Inc. 5000 for the Rocky Mountain region. The company also ranked in 2019, 2021, and 2022. Utah Business chose LGCY for its 2019 Fast 50 list, recognized as one of the state’s fastest-growing companies.

The company maintains an A rating with the BBB* and is accredited by the organization. When checking online reviews, we found customers praised LGCY Power for its dedicated project managers and informed consultants but experienced communication issues with customer support.

All Energy Solar Best Full-Service Installer
Pros and Cons: What Makes Them Different?
Pros Full-service solar installer with roofing and building contractor licenses NABCEP-certified Extensive catalog of top-selling solar panel brands Cons Higher solar equipment pricing, according to customers Varying manufacturer and performance coverage
Why We Chose All Energy Solar

All Energy Solar offers full-service installation with its in-house team, plus general electrical and solar-specific roofing services. The company handles all aspects of the installation process, including assisting customers with local solar incentive applications. All Energy Solar holds certification with the North American Board of Certified Energy Practitioners (NABCEP), one of the solar industry’s most respected certifications. 

All Energy Solar offers homeowners a one-stop shop for solar and home services. The company can even update your roof before installing solar panels, eliminating the need for additional contractors.

Warranty and Financing


All Energy Solar offers 25- to 30-year production warranties and varying manufacturer warranties based on solar equipment. Workmanship warranties also vary based on equipment. 

Financing Options

✔ Full purchase
✔ Loan

Reputation and Awards

All Energy Solar was founded in 2009 by brothers Michael and Brian Allen. Since then, the business has grown to serve 50 states for commercial projects and six states for residential installations. 

The company holds an A+ rating from the BBB and is accredited by the organization. We noted that customer reviews praised All Energy’s excellent customer service and guided installation process. We found a few reviewers who were displeased with their delayed installations

Learn more: All Energy Solar review


Best High-Efficiency System

Pros and Cons

Pros Builds customized, high-efficiency solar systems to suit each home Offers an extensive coverage area throughout the country Sells energy storage and EV charger add-ons Cons Limits solar equipment options due to in-house product exclusivity More expensive than other companies, according to some customer reviews

Why We Chose SunPower

SunPower offers high-quality solar systems custom-designed to provide homeowners with the highest efficiency possible. The company combines high-efficiency Maxeon solar panels with in-house components to create a streamlined solar system. Its product catalog includes various electric vehicle (EV) chargers to customize your system.

SunPower offers its exclusive SunVault energy storage system that stores your excess energy for use overnight or during power outages. The mySunPower monitoring app allows customers to monitor their system performance, track energy consumption, and control stored energy usage.

Warranty and Financing


SunPower backs its solar products with an all-inclusive 25-year warranty covering all solar system components, additional equipment add-ons, workmanship, and a production guarantee of 92% power output.


Financing options

✔ Full purchase

✔ Loan

✔ Lease

Reputation and Awards

Since 1985, SunPower has committed itself to developing innovative solar technology, including its high-efficiency monocrystalline solar panels. In 2020, the company moved the panel manufacturing division into a separate company called Maxeon Solar Technologies.

SunPower continued to develop its own solar products, including mounts, microinverters, batteries, and software. The company received PV Magazine’s 2019 Sustainability Award for “outstanding sustainability leadership in the solar industry.” In 2022, SunPower received the Good Housekeeping’s 2022 Home Renovation Award in the Biggest Energy Savers category. The company was recognized for its innovative SunVault energy storage system.

SunPower currently holds an A+ rating and is accredited with the BBB. Based on our team’s review analysis, we discovered that customers were pleased with their SunPower system performance. However, we noticed a pattern of complaints about higher-than-average installation costs and communication issues with third-party installers.

States Available

All 50 states, but varies by ZIP code

What Are the Available Solar Incentives in New Hampshire?

Transitioning to clean energy requires a significant up-front investment. According to EcoWatch, installing a solar panel system in New Hampshire costs $19,000 on average. Federal, state, and local solar incentives in New Hampshire can help to reduce solar energy system costs

The federal tax credit provides a tax credit equal to 30% of your installation costs and applies to rooftop solar panels, roofing, and stand-alone battery storage. New Hampshire homeowners also benefit from property tax exemption, which eliminates the added taxes that typically come with installing a solar system while allowing you to still benefit from increased home value.

The Residential Renewable Electrical Generation Rebate Program pays New Hampshire residents $200 per kilowatt (kW) of solar installed. You can earn up to $1,000 or 30% of your solar system costs, whichever is lower. We learned that these annual rebates have a small application window, so homeowners should be mindful of deadlines. For example, the 2022 application time frame lasted from Oct. 1–31. The 2023 application dates have not been announced as of this writing. 

Utility companies also offer additional solar credits and rebates. The New Hampshire Public Utilities Commission (PUC) mandates net metering for most utility companies throughout the state. Customers earn utility bill credits for selling their excess energy to the power grid. However, payout rates and program guidelines vary among companies.

Eversource also offers its Eversource ConnectedSolutions Program, which allows customers to earn money by allowing the company to use their battery storage during peak hours. You can earn $230 per kilowatt-hour (kWh), up to a maximum of $3,000. However, you must install approved Generac, Enphase, or Sonen batteries to qualify.

We recommend visiting the Database of State Incentives for Renewables and Efficiency (DSIRE) for a complete list of local solar incentives.

We recommend comparing the following factors to find the best solar company for your needs.

Solar Services

Many solar panel companies employ in-house or third-party installers. In-house teams work directly for the solar installer, so they have better quality control and smoother communication. Some companies assign a project manager during your solar panel system planning who will guide you from start to finish. Quality varies more widely amongst third-party installers, increasing the chances of a subpar installation. You’ll also have to contact another party regarding any issues, which could lead to communication breakdowns.  

Additional solar services to look for include system monitoring, energy audits, and roofing services. Some solar companies hold additional licenses to perform professional electrical and roofing repairs. Check each company for available services and note if they’re included with basic service or require additional monthly costs.

Warranties and Power Production Guarantees

As with any big investment, you’ll want to ensure your solar system lasts through its life span. The average solar panels last 25 years or longer, so you’ll want warranty coverage at least this long. Most solar installation companies offer two warranty plans: manufacturer (or product) and workmanship. The product warranty protects against manufacturing defects, and the workmanship warranty covers installation failures. Many high-quality solar panels include protection for 25 years or longer. Look for long-term warranties that match your panels’ estimated life span for the best coverage. 

Some solar installers include a power production guarantee for added protection. These guarantees outline the panels’ estimated energy production and account for gradual panel degradation. According to the National Renewable Energy Laboratory (NREL), solar panels drop in efficiency by 0.5% annually. Quality panels have higher starting efficiencies than cheaper solar panels, resulting in less impactful degeneration. Companies include these warranties to protect their panels’ linear production and offer upgrades or replacements if they fall below predicted levels. These guarantees vary by company but typically last between two and 25 years. 

Payment Options

Most solar companies offer two or more solar system financing options. Cash payments and solar loans are the most common and offer the best benefits. Both payments qualify you as the legal system owner, a requirement for most solar incentives. Other payment options, such as solar leases and power purchase agreements (PPAs), allow customers to lease the system, keeping ownership with the solar provider. They offer limited benefits and disqualify you from added installation savings. Unless panel ownership is not your priority, we recommend choosing up-front payments or solar loans for the best financial benefits.

Customer Support

Homeowners should check each company’s customer support team for availability and contact options. Some companies offer support 24/7, while others have limited office hours. You should also check the company’s methods of contact. Many installers provide phone and email access. Look for additional support features, such as online chat and in-app correspondence. When we tested several online chat features, we found mixed results. Some companies connected us to a live agent, while others used automated responses. 

We recommend checking each company’s third-party customer reviews, noting any mentions of poor customer support. This includes unanswered calls, delayed responses, and unfriendly agents.

How To Get a Solar Quote in New Hampshire

As you shop for your new solar power system, we recommend requesting multiple quotes from potential companies. Compare product catalogs, financing options, warranty coverage, and overall costs. Below is a step-by-step guide on the typical solar quotes process. 

  1. Reach out to each company: Most companies provide multiple points of contact, such as the phone or an online form. During our secret shipping experience, our calls were directed to a rep who verified our service area and solar eligibility. However, they provided little to no information on specific plans. We were transferred to a sales rep for further assistance. Check online forms for opt-in info regarding automated calls and text messages before agreeing. 
  2. Schedule your consultation: Companies typically offer virtual or in-person consultations. You can schedule in-person visits online or over the phone. Check any equipment and video call requirements before scheduling a virtual consultation. 
  3. Review your energy use: Solar installers build a system to meet your energy needs. To do this, they’ll review your latest electric bill to provide insight into your average usage. Some companies may request several months to account for seasonal fluctuations in energy use. We recommend having several statements available for your assessment. 
  4. Assess your roof design: The company rep will check your roof size and build your solar array based on the available space. They’ll account for structural designs, such as skylights and chimneys, and position panels to maximize available sunlight. If there’s any structural damage or you have surrounding trees casting shadows on the roof, the rep may recommend additional repairs or tree removal. 
  5. Build your solar system: Based on your roof and energy use assessments, the company will design an optimal home system. Depending on their available products, you’ll choose from solar panel types, inverters, and add-on options, such as solar batteries and electric vehicle (EV) chargers. 
  6. Review your final system and contract: Your quote will include all final costs, equipment, warranty coverage, and financing options. When we spoke to solar experts, they advised that solar quotes should have an itemized list of all pricing, including labor. Your quote should also include your estimated solar payback period—the time frame when your solar system pays for itself. Some companies also assist you with finding and applying for solar incentives to lower your initial costs.

Find Local Solar Panel Installers in NH

Our Conclusion

We recommend Sunrun as the best solar installer for New Hampshire residents. The company offers a variety of financing options, which makes it more accessible than many solar providers.

We recommend getting quotes from at least three providers to compare pricing and offerings before deciding.

Other New Hampshire Home Service Resources

FAQ About Solar Companies in New Hampshire

Is solar worth it in New Hampshire?

Yes, solar is a worthwhile investment in New Hampshire due to the state’s higher-than-average electricity rates. Not only will residents save more on energy costs, but they’ll also reduce their carbon footprint, contributing to New Hampshire’s renewable energy goals. 

Do solar panels increase property taxes in New Hampshire?

No, solar panels don’t increase property tax in New Hampshire, thanks to the state’s Property Tax Exemption for Renewable Energy law. Homeowners benefit from the added property value gained from installing a solar system but won’t incur additional taxation. 

How much do solar panels cost in NH?

EcoWatch estimates that the average solar panel cost in New Hampshire is around $19,000. This price varies based on system size, energy needs, and solar company pricing. Homeowners can use federal and state solar incentives to lower their investment costs, making solar conversion more economical. 

Does solar power make sense in New Hampshire?

Yes, solar panels work well in New Hampshire since the state has around 198 sunny days annually. Although this falls below the national average of 205, homeowners still have plenty of sunlight to benefit from a solar system. They can also invest in a solar battery, such as the Tesla Powerwall, for backup energy on cloudy days.

Our Rating Methodology

We are committed to providing comprehensive and unbiased reviews to our readers. After over a thousand hours of research on solar companies, interviews with experts, and common customer needs, we’ve created a detailed rating system for solar providers based on six factors:

  • Solar equipment, installation, and services (25%)
  • Warranty and performance guarantees (25%)
  • Brand reputation and certifications (15%)
  • Financing options (15%)
  • Experience (10%)
  • Availability (10%)

Total scores are divided by 20 for a final 5-point rating scale.

To share feedback or ask a question about this article, send a note to our Reviews team at reviews@thisoldhousereviews.com.