Solar Panel Cost Guide in Walpole, NH (2025 Update)
- Walpole Solar Installation Cost: $14,758
- 25-Year Savings: $14,823
- Payback Period: 14.8 Years
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Average Cost of Solar Panels in Walpole
Let’s have a look at the average cost of solar in Walpole.
The national average cost of solar panels is $2.66 per watt, but in Walpole it’s 4 per watt.To account for the typical energy needs of the average home in Walpole, most homeowners require a 5.0-kilowatt system. Using the per-watt figure above, a solar installation costs about $14,758, or $21,104 before the federal solar tax credit of 0 is applied.
The prices above are just estimates to give you an idea of how much a solar energy system could cost. The actual cost of installing solar panels can vary depending on several factors, such as how many panels you need, your energy consumption and what installation company you go with.Many homeowners find adopting solar power is a sound investment. The average homeowner in Walpole can save around $19,000 on their electricity bills over 20 years.
Click the button below to get connected to a vetted solar installer in your area for a custom quote.
Solar savings over time in Walpole
| Year | Return on Investment |
|---|---|
| 1 years | $-13,352 |
| 3 years | $-10,538 |
| 5 years | $-7,724 |
| 7 years | $-4,911 |
| 9 years | $-2,097 |
| 11 years | $717 |
| 13 years | $3,530 |
| 15 years | $6,344 |
| 17 years | $9,158 |
| 19 years | $11,971 |
| 21 years | $14,785 |
| 23 years | $17,599 |
| 25 years | $20,412 |
Top Solar Installers in Walpole
When making the switch to solar, many homeowners choose to use a solar installer since DIY solar panel installation can be a challenging project. Solar warranties and repairs are often included in the cost of installation when you sign a contract with a solar contractor as well, which can save you more money after your initial investment.
There are several licensed solar professionals that can take care of your solar installation project. Here are our suggestions:
Best for Leasing
Sunrun
- 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 Walpole
Factors that Affect Solar Panel Costs in Walpole
Cost is often one of the most important factors for homeowners wanting to invest in solar. There are a few key factors that affect your total cost in Walpole: solar equipment and system size, financing options and the solar installation company you choose. We’ll discuss each of these briefly below.
Solar Equipment
When it comes to estimating the cost of a solar energy system in Walpole, one of the most important factors is the size of the system you need. Solar systems are sized by kilowatts (kW) and are largely based on your home’s energy usage, which you can figure out by looking at past power bills. Your total cost can increase by about $4,220 for each additional kilowatt you need.The brand of solar panels and equipment you choose is another factor that will significantly affect costs. Solar panels that have higher efficiency, like monocrystalline panels, tend to cost more. Furthermore, solar equipment consists of more than just the solar panels themselves. You’ll also need to think about the kind of racks used to mount the panels, inverters, solar batteries, etc. It’s important to take all of this into consideration when looking for a solar system that falls within your budget.
Solar Financing Terms
Most solar companies in Walpole offer solar loans, which reduce your upfront costs of installing solar panels.When figuring out your overall cost, you should also calculate the interest you’ll pay if you go with a solar loan. Also, paying more upfront can reduce the total interest paid over time.
Solar Panel Installation Company
The last key cost factor you should consider is the installer you choose. Given the growing popularity of sustainable energy solutions in Walpole, you’ll have lots of options to choose from, but each comes at different price points for labor and equipment.You may come across national solar installers that have lower prices due to their larger brand name and access to bulk prices, or you might see small, local installation companies offering deals or specials 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 | $4.39 | $18,433 | $11,591 | 15.3 years |
| 8 kW | $4.30 | $24,105 | $15,927 | 15.1 years |
| 10 kW | $4.22 | $29,540 | $20,500 | 14.8 years |
| 12 kW | $4.14 | $34,739 | $25,309 | 14.5 years |
| 14 kW | $4.05 | $39,702 | $30,354 | 14.2 years |
| 16 kW | $3.97 | $44,428 | $35,636 | 13.9 years |
| 18 kW | $3.88 | $48,918 | $41,154 | 13.6 years |
| 20 kW | $3.80 | $53,172 | $46,908 | 13.3 years |
How to Save on Solar Panels
The company that does your system installation will affect the warranties and brands you have access to, and it will also have an impact on your total cost. Because choosing a company can be difficult, we have some tips to help you, such as:
- Installation Process: One of the most important things to understand when adopting solar energy is the installation process itself. Be sure to align on any details you should know with your solar installer, such as what permits you should acquire and how long the project will take.
- Reputation: Solar system installers that have great reviews from their customers and that have been operating for many years in most cases offer high-quality solar panel installation and expertise.
- Warranty: A quality company stands out from other companies by offering the gold standard warranty — a 25-year, all-inclusive warranty covering parts, labor and performance.
- Contract: Read the contract terms closely to make sure you understand how much it will cost, completion timeline rebates and warranties.
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch's Walpole, NH Solar Cost FAQs
What is the average cost of installing solar panels in Walpole?
This is a difficult question to answer precisely, because the cost depends on a variety of factors. Generally speaking, it costs about $21,100 for a 5-kW system and $42,200 for a 10-kW system after the ITC is applied. It will cost more if you want other solar equipment or more efficient panels, or if you have higher-than-average energy needs. Conversely, you can spend less if you choose a smaller solar panel system or cheaper solar panels.
What other factors should I consider aside from cost when buying solar panels?
The upfront cost is a very important factor to consider, but whether it’s the most important for you depends on your reasons for going solar. In areas where rooftop space is limited, efficiency can trump the cost. Other factors that are important to take into account are the quality and durability of your solar panels.
How much can I save on energy bills after switching to solar?
Solar panels can potentially eliminate your electricity bills depending on where you’re located and the efficiency of your system. Even if it doesn’t get rid of them completely, you can save a lot of money on your bills, about $1,000.80 per year.
What solar power system size is right for my home?
To figure out what solar panel system size you need, you should find out how much energy your home requires and how much sunlight your home gets. For a general estimate, however, since each panel can generally produce about 250 to 400 watt-hours per hour, the average household 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.