Solar Panel Cost Guide in Londonderry, NH (Dec 2022)

  • Londonderry Solar Installation Cost: $9,818
  • 25-Year Savings: $16,082
  • Payback Period: 9.5 Years

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EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated 11/09/2022

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Average Cost of Solar Panels in Londonderry

We break down average solar pricing in Londonderry.

While the national average of solar panels is $2.66 per watt, solar panels in Londonderry generally cost about $3. Using this figure, a typical 4.8 would cost about $9,818 before the 30% federal solar tax credit is applied.

How much you pay can be higher or lower than the average in Londonderry based on a few factors, such as the type of solar panels you choose and the solar installer you hire. With average savings of about $20,000 on energy bills over 20 years, many homeowners in Londonderry find installing solar panels has a decent ROI.

Click the button below to get connected to a top solar installer in your area for a customized estimate.

Solar savings over time in Londonderry

Year Return on Investment
1 years $-8,782
3 years $-6,710
5 years $-4,638
7 years $-2,566
9 years $-494
11 years $1,578
13 years $3,650
15 years $5,722
17 years $7,794
19 years $9,866
21 years $11,938
23 years $14,010
25 years $16,082

Top Solar Installers in Londonderry

Although you can install solar panels by yourself, it involves extra effort and handiness. Because of that, most homeowners choose to go with a solar panel installer. The expertise that solar installers provide can be helpful as well, especially if you aren't sure what kind of solar equipment you need.

Working with a licensed solar installer can help you make the most of your investment in solar. Here are our recommendations:

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Technology

Tesla Energy

★★★★★
4.5

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

Best for Leasing

Sunrun

★★★★★
4.0

  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

See all of the solar companies in Londonderry

Factors that Affect Solar Panel Costs in Londonderry

Cost is typically one of the most important factors for homeowners who are considering investing in solar. There are a few primary factors that affect your total cost in Londonderry: solar equipment and system size, financing options and the solar installation company you choose. We'll cover each of these briefly below.

Solar Equipment

Solar system size, which is measured in kilowatts, is one of the largest factors that determines the overall cost of installing solar panels. For that reason, it's a priority to accurately ascertain the size of the solar energy system needed for your home by figuring out your typical energy use. Some solar brands — like Maxeon from SunPower — are more costly upfront but also tend to offer higher efficiency. In a city like Londonderry, where sunlight is relatively abundant, efficiency can quickly pay off. Also, if you have a small roof or you don't have a lot of space for your panels, higher efficiency options will be more impactful. Additional equipment like electric vehicle chargers and solar batteries will also increase the cost.

Solar Financing Terms

Most solar companies in Londonderry offer solar loans, which reduce your upfront costs of installing solar. You'll have to consider the long-term cost of loans, including the amount of interest you'll pay over the length of the loan. If you can only get a high-interest loan, then your total can be hundreds or even thousands of dollars above the equipment and labor cost. Making a larger down payment or finding a solar loan with a low APR could reduce your costs considerably.

Solar Panel Installation Company

The solar panel installation company you choose will affect your total cost to make the switch to solar power. Different companies will bill different amounts for the equipment and labor. You may see national solar installers that have lower prices because of their larger brand name and access to bulk prices, or you might see small, local installation companies offering deals or promotions to compete with those major players.

Solar Panel Cost Data by System Size

System size Cost per system watt Solar system cost 25-Year savings Payback period
6 kW $3.03 $12,711 $19,535 9.9 years
8 kW $2.97 $16,622 $26,372 9.7 years
10 kW $2.91 $20,370 $33,373 9.5 years
12 kW $2.85 $23,955 $40,536 9.3 years
14 kW $2.79 $27,377 $47,862 9.1 years
16 kW $2.74 $30,636 $55,352 8.9 years
18 kW $2.68 $33,733 $63,004 8.7 years
20 kW $2.62 $36,666 $70,819 8.5 years

How to Save on Solar Panels

Since the brand of solar panels and the installation company you choose has an impact on your costs and your system's efficiency, production, and durability, it's important to pick the right ones for you. Here are some tips to keep in mind to help with your decision:

  • Solar Panel Brands: Each solar panel brand and model has varying levels of quality, longevity and energy efficiency. They will come at different prices as well. The company you choose impacts which solar panel brands you have access to.
  • Reputation: Your solar installer should have a good reputation as a company and have proven expertise in the field. A couple of ways to check this are to look for whether a company has technicians that hold a certification from the North American Board of Certified Energy Practitioners (NABCEP) and if it has satisfied reviews from past customers.
  • Contract: Even though reading through a contract can take a lot of time, it's important to do it thoroughly so you can make sure you understand how much the equipment and services will cost and how part repairs and replacements will be handled.
  • Installation Process: Homeowners should make sure they know how exactly the installation process will be carried out, as well as important factors like the completion timeline.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Technology

Tesla Energy

★★★★★
4.5

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

Best for Leasing

Sunrun

★★★★★
4.0

  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch's Londonderry, NH Solar Cost FAQs

How much does it cost to install solar panels in Londonderry?

This is a difficult question to answer precisely, because the cost depends on many factors. Generally speaking, it costs about $14,550 for a 5-kW system and $29,100 for a 10-kW system after the ITC is applied. It will be more expensive if you want additional solar equipment or higher quality panels, or if you have higher-than-average energy consumption. On the other hand, you can spend less if you want a smaller solar panel system or less efficient solar panels.

Can you get solar panels for free in Londonderry?

You can't get solar panels for free in Londonderry. However, you may still be able to install them on a lower budget. You can lease solar panels for a low upfront cost or, if you'd rather own your solar panels, you can finance them with a solar loan.

How will having solar panels impact my home value?

Solar panels can increase your home value remarkably as long as you buy or finance your panels and don't choose a solar lease or power purchase agreement (PPA). According to research done by Zillow, the average home value increases by about 4.1% with a solar installation."

How many solar panels do I need to power my home?

To figure out how many solar panels you need, you need to know how much energy your home uses and how much sunlight your home gets. For a general estimate, however, since each panel can typically produce about 250 to 400 watt-hours per hour, the average home will need 20 to 35 panels.

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.

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