Solar Panel Cost Guide in Londonderry, NH (2023 Update)
- Londonderry Solar Installation Cost: $9,817
- 25-Year Savings: $16,083
- Payback Period: 9.5 Years
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Updated September 15, 2023
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Average Cost of Solar Panels in Londonderry
Let's take a look at the average cost of solar in Londonderry.
In Londonderry, solar panels cost about 2.91 per watt on average. To account for the typical energy usage of the average home in Londonderry, most homeowners require a 4.8-kilowatt system. Using the per-watt figure above, a solar installation costs around $9,818, or $14,040 before the federal solar tax credit of 30% is applied.
Remember that the numbers above are only averages. The price you'll end up paying for solar may vary based on your household energy consumption, the type of solar system you choose, your solar contractor and more. But, after you've paid the upfront cost of installation, the savings for most homeowners is quite fruitful, with a net average savings of about $20,000 over 20 years on power bills.
You can click the button below to get connected with a vetted solar installer in Londonderry for a quote for your home.
Solar savings over time in Londonderry
| Year | Return on Investment |
|---|---|
| 1 years | $-8,410 |
| 3 years | $-5,596 |
| 5 years | $-2,783 |
| 7 years | $31 |
| 9 years | $2,845 |
| 11 years | $5,658 |
| 13 years | $8,472 |
| 15 years | $11,285 |
| 17 years | $14,099 |
| 19 years | $16,913 |
| 21 years | $19,726 |
| 23 years | $22,540 |
| 25 years | $25,354 |
Top Solar Installers in Londonderry
Do-it-yourself solar panel installation is a choice some homeowners opt for, but it's an undertaking that can take a lot of hard work. Using a solar panel installer can make your switch to solar power much easier. Companies can also offer access to a large variety of the best solar panels and help you decide which one will be best for you.
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 near you:
Best Technology
Tesla Energy
- 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
See all of the solar companies in Londonderry
Factors that Affect Solar Panel Costs in Londonderry
Cost is often one of the most important factors for homeowners wanting to invest in solar. There are a few key factors that determine your overall cost in Londonderry: 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 system in Londonderry, one of the most crucial factors is the size of the system you need. Solar systems are sized by kilowatts (kW) and are chiefly based on your home's energy consumption, which you can determine by looking at past electricity bills. Your total cost can increase by about $2,910 for each additional kilowatt you need. The model of solar panels and equipment you get is another factor that will greatly affect costs. Solar panels that are more efficient, like monocrystalline panels, tend to come at a higher price. Moreover, solar equipment goes beyond just the solar panels themselves. You'll also need to decide on 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's in your budget.
Solar Financing Terms
Many homeowners find the average cost of solar in Londonderry to be prohibitively expensive, even if the investment pays off over time. Thankfully, almost every solar company in the area offers financing options. Solar loans substantially decrease upfront costs for most homeowners, but they also result in higher prices over time because of interest. While solar loans make going solar more accessible for Londonderry homeowners, they can also add to the total you pay for your system, depending on your interest rate and how long you take to pay off the loan. If you put down a larger down payment, though, you can cut back on how much interest you have to pay.
Solar Panel Installation Company
A final consideration when trying to figure out the cost of solar for your home or business in Londonderry is the company you choose to install your PV system. Similar to choosing a company to install new cabinets, for example, there's no shortage of solar installers that offer a range of services for different budgets. Larger national companies typically have lower costs, but some local companies undercut them by offering sales and discounts. While the smaller companies might not have access to specific equipment options like Tesla Powerwall batteries or extra services like electric vehicle charger installation, they might be cheaper overall.
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
The company that does your solar panel installation will affect the warranties and brands available to you, and it will also have an impact on your total cost. Because choosing a company can be a tough decision, we have some tips to help you, such as:
- Reputation: Your solar installer should have a solid reputation as a company and have verifiable expertise in the field. A couple of ways to check this are to look for whether a company has technicians certified by the North American Board of Certified Energy Practitioners (NABCEP) and if it has positive reviews from previous customers.
- Installation Process: Homeowners should understand how exactly the installation process will be carried out, as well as important factors like the completion timeline.
- Solar Panel Brands: Not all solar installers carry the same brands of solar panels, so the brand and type of panel you want can play a significant role in the company you choose.
- Contract: It's important to read your solar installer's contract fully to understand what services they will provide, what the warranty covers and what you can expect about the project timeline.
Best Technology
Tesla Energy
- 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
EcoWatch's Londonderry, NH Solar Cost FAQs
How much does it cost to install solar panels in Londonderry?
This is a hard question to answer precisely, because the cost depends on a few different factors. Broadly speaking, it costs about $14,550 for a 5-kW system and $29,100 for a 10-kW system after the ITC is applied. You can expect to pay more if you want extra solar equipment or more efficient panels, or if you have above-average energy consumption. On the other hand, you can spend less if you go with a smaller solar panel system or less expensive solar panels.
Are solar panels free in Londonderry?
You can't get solar panels for free in Londonderry. However, you may still be able to afford them on a lower budget. You can lease solar panels for a low upfront cost or, if you want to own your solar panels, you can finance them with a solar loan.
Can solar panels eliminate my power bills?
It is possible to erase your electricity bills with solar panels, but for most homeowners throughout Londonderry, that will require at least a 10-kW system. Not all homes can accommodate that size system, so you'll want to check with a local solar installer to see how many panels can fit on your roof.
How often do you have to replace solar panels?
Even though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable at that time. What this means is how much energy they produce will have decreased significantly after that point. You can decide to replace them once you've had them for that long or you can keep using them at a lower efficiency.
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.