10 Best Solar Companies in Londonderry, NH

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Last Updated: February 25, 2025

A solar panel array will provide you with a renewable power source that will eventually pay for itself. Adopting solar energy can allow you to save money and shrink your carbon footprint, but you want to make sure you find a trustworthy installer. Luckily, we've done the research and created a guide to the best and most reliable solar installation providers in Londonderry.

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Top 10 Best Solar Companies in Londonderry

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

ReVision Energy

ReVision Energy Logo

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1980 Turnpike St Ste 2, North Andover, MA 01845 (978) 308-9041 revisionenergy.com

Free quotes

Clear pricing policy

Informative resources

Prompt service delivery

Reliable customer support

Services Offered

Community solar projects
Battery storage
Consultation
Cleaning and maintenance
Panel installation
Financing assistance

New England Clean Energy

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577 Main St Suite 430, Hudson, MA 01749 (978) 567-6527 newenglandcleanenergy.com

Informative resources

Clear pricing policy

Prompt service delivery

Reliable customer support

Free quotes

Services Offered

Panel installation
Grid-tied solar system
Cleaning and maintenance
Consultation
Permit assistance
Battery storage

Helios Solar Energy

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225 Broadway Suite 910, Methuen, MA 01844 (978) 381-1815 hssolarpower.com

Prompt service delivery

Free quotes

Reliable customer support

Clear pricing policy

Services Offered

Cleaning and maintenance
Panel installation
Consultation
Financing assistance
Permit assistance

Sundial Solar

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7 Pleasant St Ext, Concord, NH 03301 (603) 961-0045 sundialsolarnh.com

Free quotes

Informative resources

Clear pricing policy

Services Offered

Panel installation
Consultation
Battery storage
Financing assistance
Permit assistance
Tesla powerwall

Viridis Energy Solutions

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171 Merrimac St, Woburn, MA 01801 (781) 829-3400 viridisenergy.com

Free quotes

Clear pricing policy

Informative resources

Reliable customer support

Services Offered

Panel installation
Permit assistance
Financing assistance
Consultation
Cleaning and maintenance
Battery storage

altE Store

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330 Codman Hill Rd, Boxborough, MA 01719 (877) 878-4060 altestore.com

Clear pricing policy

Free quotes

Informative resources

Services Offered

Battery storage
Off-grid solar systems
Grid-tied solar system
Cleaning and maintenance
Panel installation

Kind Heart Solar Solutions

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59 Bowker St, Boston, MA 02114 (508) 466-5978 solar-boston.co

Reliable customer support

Clear pricing policy

Free quotes

Services Offered

Battery storage
Off-grid solar systems
Skilled repairs
Consultation
Cleaning and maintenance
System decommissioning
Panel installation

EnergySage

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3 Center Plz, Boston, MA 02108 (888) 838-4638 energysage.com

Clear pricing policy

Informative resources

Free quotes

Services Offered

Battery storage
Panel installation
Tesla powerwall
Financing assistance
Community solar projects

Boston Solar

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12 Gill St #5650, Woburn, MA 01801 (617) 648-5601 bostonsolar.us

Informative resources

Free quotes

Reliable customer support

Prompt service delivery

Services Offered

Consultation
Panel installation
Financing assistance
Battery storage

Team Sunshine Construction, LLC.

Team Sunshine Construction, LLC. Logo

Our Rating

User Rating

24 Spice St, Boston, MA 02129 (617) 580-8649 teamsunshine.solar

Informative resources

Prompt service delivery

Reliable customer support

Free quotes

Services Offered

Panel installation
Permit assistance
Financing assistance
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on solar companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How To Choose a Solar Company

Installing solar panels can reduce your electricity costs and help the environment by reducing your carbon footprint. When evaluating if a solar provider is a good fit for you, consider these key factors.

Check Licensing

It's important to hire a licensed solar installer. This ensures that the work is done properly using current installation best practices. A master electrician needs to supervise solar photovoltaic installations in New Hampshire. However, solar thermal installers need not be licensed plumbers unless a locality requires it.

Read Customer Reviews

Check Google Reviews, the Better Business Bureau (BBB), TrustPilot, and other review sites to see what past customers are saying about local solar installers. Detailed reviews can help you evaluate a provider's integrity and customer service. Stay away from companies with few or mainly poor reviews.

Compare Multiple Quotes

To find a solar company that works with your budget, get free, detailed quotes from at least three providers. The quotes should outline all costs and list the solar equipment included. Comparing several quotes helps you identify the best value.

Ask About the Warranty

Top-notch solar installations should have strong workmanship and performance warranties. A workmanship guarantee covers installation issues, such as cracks in the panels, poor alignment, or poor wiring. A performance warranty ensures a minimum energy output. Comprehensive warranties indicate that a solar company believes in its work.

Evaluate Financing and Incentives

Solar energy can help lower your electricity costs long-term. When weighing solar panel's cost and value, be sure to consider these considerations.

  • Research federal and state tax credits: There’s a 26% federal tax credit available for total solar system costs until 2032. Many states also provide incentives. The credits can add up to significant savings for solar buyers.
  • Compare system purchase options: Solar panels can be purchased upfront or financed through a lease or loan. Review important financing details such as payment schedule, fees, annual percentage rate (APR), and ownership implications when financing your solar system.
  • Look into utility rebates: Some utility companies may provide additional rebates to incentivize homeowners to install solar panels. Check the qualification rules and rebate amounts offered by your local power company to estimate your potential savings.

Cost of Solar Installation in Londonderry

The cost of solar panels varies based on system capacity and the solar technology used. The average solar system in Londonderry has a capacity of 4.8 kilowatts. Homeowners in the area can expect to pay around $4,220 per kilowatt; the average Londonderry homeowners spends roughly $14,236 on a new solar array after accounting for federal tax breaks. (Some homeowners prefer to lease solar panels to reduce their upfront costs.) A personalized quote from a local solar provider will account for factors such as the size, capacity, and panel type of the planned system, and should include fees for permit fees, preliminary work, and labor.

Londonderry Solar Incentives Guide

Incentive Type: Rebate Program

Website: puc.nh.gov

Incentive Amount:

$0.20/watt

Incentive Type: Rebate Program

Website: puc.nh.gov

Incentive Amount:

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: Property Tax Incentive

Website: nh.gov

Incentive Amount:

Varies (local option)

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: 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.

Frequently Asked Questions About Solar in Londonderry, NH

A solar photovoltaic (PV) system can generate power to run any electric system or appliance in your home. If you don't want to use solar power for your entire home, you can install a solar heating system for your water.

With home solar PV, you can recoup the cost of the system over time, lower your property's emissions, and be better prepared if there's an outage to the local grid.

It depends on where you live and what type of panels you're installing. Londonderry can experience long, hard winters, so we recommend installing your system in the spring months to maximize your generation for the year.

Your installer can give you an estimate of what your energy bills will look like after you install solar panels. Generally, your energy bills will decrease significantly because you'll be using energy from the sun for free, instead of buying energy from the utility company. The average annual savings in Londonderry amount to $1,036.

While solar energy might not be the best performing choice for some in dark or wet areas, the latest generation of equipment and energy storage systems could increase your property's solar viability enough where you could achieve a return on investment. A contractor could also recommend a different primary source of renewable energy like wind or geothermal to boost your generation.

Some frequently-used types of home solar panels in Londonderry include polycrystalline, monocrystalline and thin-film. Monocrystalline panels are balanced and efficient, while thin-film and polycrystalline panels pair good performance with greater upfront value. Talk with your local provider about which solar panels they work with.

Solar energy is on par with other forms of renewable energy. Their maintenance costs are low and today's systems can generate and manage energy under more conditions.

Other Londonderry, NH Home Services

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