Solar Panel Cost Guide in Londonderry, PA (2024 Update)

  • Londonderry Solar Installation Cost: $16,690
  • 25-Year Savings: $12,965
  • Payback Period: 16.7 Years

See cost of a solar system near you:

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 03, 2024

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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 Londonderry

Let’s have a look at the average cost of solar panels in Londonderry.

The average cost of a solar panel system in Londonderry is 4 per watt.To cover the typical energy usage of the average home in Londonderry, most homeowners require a 6.7-kilowatt system. Using the figure above, a solar installation costs about $16,690, or $23,867 before the federal solar tax credit of 0 is applied.

Keep in mind that the figures above are only estimates based on the average energy use of Londonderry homeowners. The price of a solar system for your home may look different depending on factors unique to your situation, like your household energy use and solar contractor.But, once you've paid the upfront cost of installation, the ROI for most homeowners is typically fruitful, with a net average savings of about $14,000 over 20 years on power bills.

For a customized quote from a local solar installer that has been pre-vetted by EcoWatch, click the button below.

Solar savings over time in Londonderry

Year Return on Investment
1 years $-15,447
3 years $-12,961
5 years $-10,475
7 years $-7,990
9 years $-5,504
11 years $-3,018
13 years $-532
15 years $1,954
17 years $4,440
19 years $6,926
21 years $9,412
23 years $11,898
25 years $14,384

Top Solar Installers in Londonderry

Although it's possible to install solar panels on your own, it requires extra labor and know-how. For that reason, most people choose to hire a solar panel installer. The expertise that solar installers offer can be invaluable as well, especially if you aren’t sure what brand of solar equipment would be right for your home.

You can work with a local solar installer to get a free quote on the cost of solar panels for your home. Here are some nearby:

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 Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

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

Although the average cost of a solar system in Londonderry is $16,690, your actual cost may be higher or lower than that. There are quite a few factors that can have a major impact on the cost of a solar system installation. Below are some of the more crucial things to keep in mind.

Solar Equipment

The size of the solar system you need, 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 nearly $3,550. The brand and kind of equipment you get for your solar system can increase or decrease the price quite significantly. If you prefer a brand name like Tesla or SunPower, these are often more expensive 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. Plus, if you want additional equipment like an electric vehicle charger or solar batteries, this will also increase the cost.

Solar Financing Terms

Solar panels can save you money on utility bills over many years, but they can also be a significant investment. That’s why many Londonderry homeowners choose to finance their solar panel systems to make going solar more affordable.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 interest rate could reduce your costs considerably.

Solar Panel Installation Company

The solar installer you pick will play a role in your total cost to adopt solar power. Different companies will charge different amounts for the equipment and labor.Additionally, some companies in Londonderry know more about local solar incentives and can help you learn about additional rebates or tax exemptions. Though, 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 size Cost per system watt Solar system cost 25-Year savings Payback period
6 kW $3.69 $15,506 $6,786 17.4 years
8 kW $3.62 $20,278 $9,445 17.1 years
10 kW $3.55 $24,850 $12,303 16.7 years
12 kW $3.48 $29,224 $15,360 16.4 years
14 kW $3.41 $33,398 $18,616 16.1 years
16 kW $3.34 $37,374 $22,071 15.7 years
18 kW $3.27 $41,152 $25,724 15.4 years
20 kW $3.19 $44,730 $29,577 15.0 years

How to Save on Solar Panels

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

  • Contract: Before you sign a contract with a solar company, make sure to look it over fully so you understand the terms. Also, ask questions if you aren’t sure about some of the terms, such as what to do if a part breaks or malfunctions and what services you can expect from them.
  • Installation Process: Homeowners should understand how exactly the installation process will go, as well as important factors like the project timeline.
  • Warranty: Warranties that cover panel repairs and maintenance over a couple decades are the gold standard in the business, and offering that kind of warranty is one mark of a quality company.
  • Reputation: The North American Board of Certified Energy Practitioners (NABCEP) is a respected certification organization for clean energy professionals. If your solar panel installer is NABCEP-certified, it most likely has a good reputation and is qualified to install your solar system. Another way you can research your installer’s reputation is by reading reviews.

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 Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

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, PA Solar Cost FAQs

What is the average cost of installing solar panels in Londonderry?

This is a difficult question to answer precisely, because the cost depends on a few different factors. Broadly speaking, it costs about $17,750 for a 5-kW system and $35,500 for a 10-kW system after the ITC is applied. You can expect to pay more if you want additional solar equipment or more efficient panels, or if you have above-average energy usage. On the flip side, you can spend less if you go with a smaller solar panel system or less efficient solar panels.

Should I lease or buy solar panels in Londonderry?

Leasing solar panels can be an option if you can’t afford to pay upfront or secure a solar loan, but since you don’t own the system, you don’t have access to many solar incentives. Also your home value won’t increase, so you’ll have less savings over time. If you can afford to buy a solar system upfront, then buying is the better option if you want the most bang for your buck from going solar.

Is making the switch to solar worth it?

Whether or not solar panels are worth it depends on a variety of factors like how much you pay for electricity and the amount of direct sunlight your roof gets.

What solar power system size is right for my home?

To figure out how many solar panels you need, you should find out how much energy your home needs 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 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.

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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