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Best 5 Solar Companies in Nashua, NH

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Written By Max Peterson | Last Updated: February 05, 2024

With Nashua's clear skies and below-average rainfall, it's a perfect area for homeowners and businesses hoping to harness the additional sunlight. If you're thinking about going solar, you might be concerned about high prices or long payback periods. By collaborating with a skilled installer, you'll have both the monetary and operational support you need for a successful transition. On this page, we'll highlight Nashua's most reputable solar installers and offer valuable advice for your solar journey.

Best High-Efficiency System
  • Builds custom, high-efficiency solar systems suited to each home
  • Extensive coverage area throughout the country
  • Offers energy storage and EV charger add-ons
Best Solar Panel Leasing
  • Provides system monitoring
  • Offers diverse financing options for various budgets
  • Provides EV and solar battery solutions

Top Nashua Solar Companies

Sunrun Fusion New England Logo

Sunrun Fusion New England

Based on 16 customer reviews.

Services Offered

Residential Panels Solar Panel Upgrades


  • Free quotes
  • Reliable customer support
  • Clear pricing policy
420 S Washington St Suite 6, North Attleborough, MA 508-372-8582 risolarexperts.com
Critical Mass Solar Logo

Critical Mass Solar

Based on 21 customer reviews.

Services Offered

Financing Assistance Residential Panels


  • Clear pricing policy
  • Reliable customer support
  • Informative resources
33 Leighton St, Pepperell, MA 978-272-1486 criticalmasssolar.com
Sunergy Solutions, LLC Logo

Sunergy Solutions

Based on 24 customer reviews.

Services Offered

Commercial Panels Financing Assistance Full-Service Residential Panels


  • Reliable customer support
  • Informative resources
  • Clear pricing policy
75 Gilcreast Rd, Londonderry, NH 844-427-6527 sunergysolutionsllc.com
Helios Solar Energy Logo

Helios Solar Energy

Based on 25 customer reviews.

Services Offered

Consultation Residential Panels


  • Free quotes
  • Reliable customer support
  • Clear pricing policy
225 Broadway Suite 910, Methuen, MA 978-381-1815 hssolarpower.com

More Local Solar Companies

Sun Team

User Reviews: 4.7/5 

58 Holden Rd
Shirley, MA 01464

Solar On Earth

User Reviews: 4.5/5 

35 Nagog Park #315
Acton, MA 01720

altE Store

User Reviews: 5/5 

330 Codman Hill Rd
Boxborough, MA 01719

Invaleon Technologies Corporation

User Reviews: 4.4/5 

26 Parkridge Rd #1b
Haverhill, MA 01835

Bright Home Solutions, Inc.

User Reviews: 4.7/5 

240 Andover St 2nd Floor
Wilmington, MA 01887

Boston Solar

User Reviews: 5/5 

12 Gill St #5650
Woburn, MA 01801

ReVision Energy

User Reviews: 4.6/5 

1980 Turnpike St Ste 2
North Andover, MA 01845

Granite State Solar

User Reviews: 4.5/5 

57 Ryan Rd
Bow, NH 03304

NuWatt Energy

User Reviews: 4.2/5 

400 Tradecenter Dr Ste 5900
Woburn, MA 01801

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

Ranking Methodology

Our team has screened dozens of solar companies near Nashua, with emphasis on the following criteria:

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Facts about Nashua
Average Max Temp: 54°F
Solar Payback Period: 11.0 years
Average Daily Sunlight: 51%
Homes Powered by Solar: 0
Average Annual Energy Bill: $1,407
Solar Power per Capita Percentile: 48.0%

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

Benefits of Solar Energy

Solar energy comes with multiple benefits. Here are some highlights.

  • Lower utility costs: Generating some or all of your own energy will cut power costs long-term.
  • Reduced carbon footprint: Utilizing solar is a surefire way to minimize your carbon footprint and home fossil fuel dependency.
  • Better energy independence: Solar systems with battery storage function through blackouts and emergencies, and you won't have to rely on the electrical grid for your safety and comfort.

What Solar Incentives Are Available to Nashua Homeowners?

New Hampshire homeowners who upgrade to solar could qualify for special financing, rebates, reimbursements and tax credits. Here are just a few of the local incentive programs.

Incentive Type: Property Tax Incentive

Website: nh.gov

Incentive Amount:

Varies (local option)

Incentive Type: Rebate Program

Website: puc.nh.gov

Incentive Amount:


Incentive Type: Rebate Program

Website: eversource.com

Incentive Amount:

Lighting: Online discounts & coupons at participating retailers
LED Light Fixture: $5
Heating/Cooling Equipment: Up to $400
Heat Pump Water Heaters: Up to $600
Clothes Dryers: up to $200
Clothes Washer: Up to $50
Dehumidifier: $25
ENERGY STAR Homes: $4,000
Natural Gas Heating Equipment: Up to $1,500
Natural Gas thermostats: Up to $100
Pool Pumps: Up to $500
Refrigerator and Freezer Recycling: $30
Refrigerators: Up to $75
Room Air Conditioner: $20
Room Air Purifiers: $40

Incentive Type: Rebate Program

Website: puc.nh.gov

Incentive Amount:

$1,500, $1,700 or $1,900, depending on annual estimated system output

Incentive Type: Rebate Program

Website: puc.nh.gov

Incentive Amount:


Incentive Type: Personal Tax Credit

Website: ecowatch.com

Incentive Amount:

30% federal tax credit for systems placed in service after 12/31/2021 and before 01/01/2033. Good for: solar water heat, solar photovoltaics, biomass, geothermal heat pumps, wind (small), fuel cells using renewable fuels.

How To Choose the Best Solar Company in Nashua

Choosing a company is the first step toward a well-oiled and valuable solar system. Here are some crucial criteria to remember while searching for a solar company.

Licensing and Training

A master electrician is required to oversee solar PV installations in New Hampshire. However, solar thermal installers need not be licensed plumbers unless a locality requires it. Solar providers can also earn accreditations from standards organizations and trade groups. The most recognized ones in the industry come from the North American Board of Certified Energy Practitioners. Most company websites will prominently display earned credentials, but you should also ask your estimator for more information.

Cost of Solar Panels in Nashua

Your solar panels' style will affect how much electricity you can produce. Monocrystalline panels perform the best but cost the most. Polycrystalline panels generate less, but they're a great traditional option for low budgets. Thin-film panels are excellent for non-traditional roof shapes and cost the least, but don't work well for large residential installations.

You can also add battery backups and electric vehicle (EV) chargers. These will increase your total project price, but they can maximize your solar system's performance. Not all solar companies include these add-ons, so look for a provider that sells them if it's crucial for you.

Generally speaking, it costs about $21,100 for a five-kilowatt solar array in Nashua. This table displays more specific costs for different solar panel types and system components in your area.

Solar Panel Cost Average Cost
Solar Monocrystalline $1,181
Solar Polycrystalline $922
Thin-Film $539
Solar Battery $756
Solar Home EV Charger $2,835

Financing Solar Energy in Nashua

Choosing the best financing solution will impact your overall solar system cost and potential savings. Common payment options include power purchase agreements, loans, leases, and cash payments. We suggest paying with cash or using a solar loan for the best return on investment (ROI). Cash payments require a hefty sum up-front, but you’ll pay the least long-term by avoiding interest. You’ll also own your system and can apply for solar incentives to minimize your total costs. Solar loans are another good option if you don’t want to make a big initial investment. You can pay for your system in monthly installments while still benefiting from energy bill savings and solar incentives. However, you’ll spend more in total due to accruing interest. Solar leases allow you to pay a monthly fee to rent your panels, while a PPA lets you pay a fluctuating rate based on only the energy you use. We generally advise against these options since you will not have ownership of your system and are disqualified from solar incentives, but they might be suitable in particular circumstances. We suggest working with a provider that offers multiple financing options. Ask each agent about what's available, and acquire more than one estimate for the best odds of staying within your financial plan.

The table below lists the average payback periods for different capacities of solar systems in Nashua.

A 26% federal tax credit applies to new residential solar equipment purchased through 2032. Further incentives may be available through city and state governments, usually in the form of rebates and special financing programs.

Solar System Capacity Estimated Payback period
1 kW 2.2 years
2 kW 4.4 years
5 kW 11.0 years
10 kW 21.9 years

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Frequently Asked Questions About Solar in Nashua

How much money could I save by going solar in Nashua?

Most Nashua homeowners spend about $1,407 on energy each year. Your costs could drop by $1,009.79 for each kilowatt you generate after you pay off a solar array.

How popular is solar energy in Nashua?

Yes, solar energy is readily available in Nashua. A growing number of local homes generate or access solar power on-site or through utility grids, and New Hampshire has about 1031 jobs comprising its solar economy.

Will solar panels increase my Nashua home price?

Yes, new solar systems translate to higher property values according to the National Renewable Energy Laboratory (NREL.) Homeowners could project a $20 property value increase for each dollar they save on energy. Therefore, $600 in energy savings could boost your property value by $12,000.

What can I do to assess my home's solar potential?

One common way to determine your home's solar viability is by using PVWatts. This free, powerful tool considers local weather and topography, panel efficiency, tree cover, and system size to determine how much power your array could generate. However, it's not a substitute for consulting with a solar expert, who can create a full estimate with the most updated data.

Is installing solar panels a fast job?

There's no universal answer for how long a solar project might take. Ultimately, it depends on system size, the necessary prework, local weather, the permitting and inspection process, and panel style. Most homeowners can be solar-ready within a couple of months from their initial estimate visit.

What is the average payback period for Nashua solar panels?

The average payback period for a solar loan in Nashua is 14.6 years. By paying off extra principal each month, you can shorten the payback period and own your system faster.

What's the difference between a PPA and a solar lease?

After you sign a power purchase agreement, your solar contractor will not charge to set up and take care of your new panel array. Instead, you'll pay them only for the electricity you generate. Typically, PPAs last for 10–25 years or until you "buy out" of the contract.

If you choose a lease, you'll make set monthly payments.

With both leases and PPAs, you do not own your panels and lose eligibility for most incentives. Further, you'll have to "buy out" or transfer the contract if you sell your home during the term.

How are traditional solar loans and PPAs different?

A power purchase agreement is an agreement between you and your contractor. They set up, own, and care for the panels, and you buy the generated electricity from them for 10–25 years. There will usually be options to buy out early to own your system and extend the agreement.

In contrast, solar loans can come from specialty lenders, the government, local banks and installer. You'll need to pass a credit check to qualify for most of them. While the upfront costs are greater, and you'll be responsible for taking care of the system, you'll also have full ownership rights and can apply for many more incentives.

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