Solar Panel Cost Guide in Greencastle, PA (2025 Update)

  • Greencastle Solar Installation Cost: $16,556
  • 25-Year Savings: $9,151
  • Payback Period: 19.7 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

Why you can trust EcoWatch

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 Greencastle

Find out how much it might cost to go solar in Greencastle.

Although the national average of solar panels is $2.66 per watt, solar panels in Greencastle typically cost about 4.Using this figure, a typical 6.7-kW system would cost about $16,556 before the 0 federal solar tax credit is applied.

The true cost of your system can go above or below the average in Greencastle based on a variety of factors, such as the type of solar panels you choose and the solar contractor you hire.Many homeowners find adopting solar power is a sound investment. The average homeowner in Greencastle can save around $12,000 on their electricity bills over 20 years.

You can click the button below to get connected with a pre-vetted solar installer in Greencastle that can help you get a more accurate cost estimate for your home.

Solar savings over time in Greencastle

YearReturn on Investment
1 years$-15,473
3 years$-13,308
5 years$-11,142
7 years$-8,976
9 years$-6,810
11 years$-4,644
13 years$-2,478
15 years$-313
17 years$1,853
19 years$4,019
21 years$6,185
23 years$8,351
25 years$10,516

Top Solar Installers in Greencastle

Many homeowners choose to use a solar panel company since trying to install solar panels yourself can be challenging. Solar companies offer key benefits that can help you maximize your investment, like warranties, monitoring and free repairs.

You can get a free estimate from a local solar installer on how much your investment in solar could cost for your home. Here are some nearby:

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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 Greencastle

Factors that Affect Solar Panel Costs in Greencastle

There are many criteria that can play into your total installation cost, such as the size of your system, the equipment you choose, your financing options and the specific company that installs your solar system.

Solar Equipment

System size, which is measured in kilowatts, is one of the largest factors that influences the overall cost of installing solar panels. That’s why it’s a priority to accurately gauge the size of the solar energy system needed for your home by figuring out your typical energy use.Some solar panel brands — like Maxeon from SunPower — are more expensive upfront but also tend to offer higher efficiency. In a city like Greencastle, where sunlight is relatively abundant, efficiency can quickly pay off. Plus, 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

If paying for solar panels in cash is out of reach, solar loans are a popular route because they decrease your upfront costs and allow you to pay for your system over a term of, on average, between five and seven years.You’ll have to consider the long-term cost of loans, including the total 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 significantly.

Solar Panel Installation Company

The solar panel installer you choose will impact your total cost to adopt solar energy. Different companies will charge different amounts for the equipment and labor.Companies that only sell products with high efficiency and therefore a higher price point — like Maxeon solar panels from SunPower or Tesla Powerwall batteries — so choosing those installers will generally come at a higher cost. It’s best to do some research and decide on the company that provides the products, warranties and services you’re looking for and also fits within your budget.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.69$15,506$3,44520.5 years
8 kW$3.62$20,278$4,99120.1 years
10 kW$3.55$24,850$6,73519.7 years
12 kW$3.48$29,224$8,67919.3 years
14 kW$3.41$33,398$10,82118.9 years
16 kW$3.34$37,374$13,16218.5 years
18 kW$3.27$41,152$15,70218.1 years
20 kW$3.19$44,730$18,44117.7 years

How to Save on Solar Panels

Since the kind 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: Homeowners should make sure they know how exactly the installation process will be carried out, as well as important factors like the project completion timeline.
  • Warranty: Many companies offer different kinds of warranties that provide different kinds of coverage. A 25-year, all-inclusive warranty is the gold standard.
  • Reputation: Solar panel companies that have great reviews from their customers and that have been operating for many years likely provide quality solar panel installation and expertise.
  • Contract: When reading through your solar installer’s contract, ask for clarification about any terms you’re not sure of and make sure you understand what happens in scenarios like a system component breaking or if the company goes out of business.
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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 Greencastle, PA Solar Cost FAQs

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

This is a hard question to answer exactly, 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. It will cost more if you want extra solar equipment or more efficient panels, or if you have higher-than-average energy consumption. On the other hand, you can spend less if you go with a smaller solar panel system or cheaper solar panels.

What other factors should I consider apart from cost when buying solar panels?

The initial 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 places where rooftop space is limited, efficiency can trump the cost. Other factors that are important to think about are the quality and durability of your solar panels.

Can solar panels eliminate my power bills?

It is possible to eliminate your electricity bills with solar panels, but for most homeowners throughout Greencastle, that will require at least a 10-kW system. Not all homes will have roofs that 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 long do solar panels last in Greencastle?

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 higher amount 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.