Solar Panel Cost Guide in Merrimack, NH (2025 Update)

  • Merrimack Solar Installation Cost: $14,627
  • 25-Year Savings: $14,914
  • Payback Period: 14.6 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 24, 2025

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We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Average Cost of Solar Panels in Merrimack

Find out how much it might cost to install solar panels in Merrimack.

Currently, the national average cost of solar panels is $2.66 per watt. However, in Merrimack, the typical cost of a solar system is 4 per watt.Using this figure, a typical 5.0-kW system would cost about $14,627 before the 0 federal solar tax credit is applied.

The prices above are just estimates to give you an idea of how much a solar panel system could cost. The exact cost of making the switch to solar can vary based on multiple factors, such as what size system you need, your energy consumption and what solar installer you go with.But, after you've paid the initial cost of installation, the savings for most homeowners is usually good, with a net average savings of about $19,000 over 20 years on energy bills.

Click the button below to get connected to a highly rated solar company in Merrimack for a customized estimate.

Solar savings over time in Merrimack

YearReturn on Investment
1 years$-13,220
3 years$-10,406
5 years$-7,593
7 years$-4,779
9 years$-1,966
11 years$848
13 years$3,662
15 years$6,475
17 years$9,289
19 years$12,103
21 years$14,916
23 years$17,730
25 years$20,544

Top Solar Installers in Merrimack

Although it's possible to install solar panels on your own, it requires extra labor and handiness. For that reason, most people choose a solar panel installer. Plus, warranties and repairs from your solar panel company can protect your investment and lower the cost of maintenance over the lifespan of your panels.

If you’d like to make the switch to solar but still aren’t sure which solar system installer to go with, here are our recommendations for providers nearby:

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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 Merrimack

Factors that Affect Solar Panel Costs in Merrimack

While the average cost of a solar system in Merrimack is $14,627, your final cost may be higher or lower than that. There are quite a few factors that can have a sizable impact on the cost of a solar panel installation. Below are some of the more important things to take into consideration.

Solar Equipment

The size of the solar panel system you need for your household, which is measured in kilowatts, is the most significant cost factor to consider. For every additional kilowatt you need, your total will most likely increase by about $4,220. The brand and type of equipment you choose for your solar system can increase or decrease the price quite significantly. If you prefer a brand name like Tesla or SunPower, these often have a higher price tag than other brands. Efficiency also matters. Whether you’re opting for high efficiency because you have limited roof space or just want maximum energy production, you will be looking at a higher equipment cost, but this can typically lead to more savings over time. Also, if you want extra equipment like an electric vehicle charger or solar batteries, this will also increase the cost.

Solar Financing Terms

For some homeowners, paying for solar out of pocket can be a challenge. Solar loans are offered by most installers in Merrimack, which can reduce, or in some cases totally eliminate, your upfront costs to make solar more accessible.When estimating your overall cost, you should also calculate the interest you’ll pay if you go with a solar loan. Also, paying more on your down payment can lower the total interest paid over time.

Solar Panel Installation Company

Lastly, the company you get to install your solar panel system can play a role in determining how much you pay. Merrimack’s solar companies all have different labor costs and add varying upcharges to equipment. Additionally, some companies in Merrimack have more knowledge about local solar incentives and can help you take advantage of additional rebates or tax exemptions. However, they may charge more for walking you through the whole process. Even if they cost more upfront, they could help you save more money in the long run.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$4.39$18,433$11,86115.2 years
8 kW$4.30$24,105$16,28714.9 years
10 kW$4.22$29,540$20,95014.6 years
12 kW$4.14$34,739$25,84814.3 years
14 kW$4.05$39,702$30,98414.0 years
16 kW$3.97$44,428$36,35513.7 years
18 kW$3.88$48,918$41,96313.5 years
20 kW$3.80$53,172$47,80713.2 years

How to Save on Solar Panels

Since the type of solar panels and the installer 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:

  • Installation Process: Get detailed information from your solar installer about the installation process and what to expect, such as when the site survey will be completed and what the project timeline is.
  • Solar Panel Brands: Each solar panel brand and kind offers varying levels of quality, durability and energy efficiency. They will come at different costs as well. The company you choose impacts which solar panel brands you have access to.
  • Contract: It’s important to look over your solar installer’s contract carefully to understand what services they will provide, what the warranty covers and what expectations you should have about the installation process.
  • Warranty: An all-inclusive, long-term warranty can help keep your solar system running smoothly and save you money on part replacement and repairs.
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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 Merrimack, NH Solar Cost FAQs

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

The average cost of solar panels in Merrimack is about $21,100 for a 5-kW system and $42,200 for a 10-kW system before the ITC, but the real cost will depend on things such as the kind of solar panels you want, what size system you need and how much energy you use.

Can you get solar panels for free in Merrimack?

You can’t get solar panels for free in Merrimack. However, you may still be able to get 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.

Can you sell solar power back to the grid in Merrimack?

Most states have net metering programs of some kind. Through these, you can receive compensation for the extra power your system produces or or receive credits to put toward future electricity bills. Currently there are just three states that don’t have any net metering laws: Alabama, Tennessee and South Dakota.

How long do solar panels last in Merrimack?

On average, the lifespan of solar panels is about 25 to 30 years. Some even last up to 50 years, but their efficiency goes down by about 0.8% each year. You can choose to replace them sooner if you want to maintain a larger level of energy production.

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.