Solar Panel Cost Guide in Islip Terrace, NY (2025 Update)

  • Islip Terrace Solar Installation Cost: $9,930
  • 25-Year Savings: $14,345
  • Payback Period: 11.1 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 Islip Terrace

We break down average solar pricing in Islip Terrace.

Although the national average of solar panels is $2.66 per watt, solar panels in Islip Terrace generally cost about 4.Since a 3.9-kW system is needed to cover the energy usage of a typical home in Islip Terrace, the average price of going solar will be about $9,930 after claiming the federal solar tax credit of 0.

The prices above are just estimates to give you an idea of how much solar panels could cost. The true cost of installing solar panels can vary based on a few factors, such as what size system you need, your energy consumption and what installation company you go with.But, once you've paid the initial cost of installation, the return on investment for most homeowners is quite good, with a net average savings of about $22,000 over 20 years on electricity bills.

To get a free estimate from a top solar company in Islip Terrace, you can click the button below.

Solar savings over time in Islip Terrace

YearReturn on Investment
1 years$-8,405
3 years$-5,354
5 years$-2,303
7 years$747
9 years$3,798
11 years$6,849
13 years$9,899
15 years$12,950
17 years$16,001
19 years$19,051
21 years$22,102
23 years$25,153
25 years$28,204

Top Solar Installers in Islip Terrace

Do-it-yourself solar panel installation is a way to cut costs, but it's an undertaking that can be a pain. Using an installer can make your swap to solar power much easier. Also, companies with an outstanding reputation that cost more upfront could actually save you money in the long term due to their warranties, repair services and expert design.

Working with a professional solar installer can make going solar easier. Here are our recommendations:

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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 Islip Terrace

Factors that Affect Solar Panel Costs in Islip Terrace

The cost of installing a solar system in Islip Terrace can vary by more than $10,000 from home to home. Your actual cost depends on several factors. The most significant one is your system size, and other factors include equipment choices, financing options and the solar installer you choose.

Solar Equipment

When it comes to estimating the price of a solar system in Islip Terrace, 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 consumption, which you can determine by looking at past energy bills. Your overall cost can increase by around $3,650 for each additional kilowatt you need.The brand and type of equipment you get for your solar system can increase or decrease the price quite significantly. If you prefer a trusted brand name like Tesla or SunPower, these often come at a higher price 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 can expect a higher equipment cost, but this can typically lead to more savings over time. Plus, if you want add-ons like an electric vehicle charger or solar batteries, this will also raise the cost.

Solar Financing Terms

If paying for solar panels out of pocket is out of reach, solar loans are an affordable option because they reduce your upfront costs and allow you to pay for your system over five to seven years on average.You’ll have to consider the long-term cost of financing options, including the amount of interest you’ll pay over the length of the loan. If you’re only able to 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 considerably.

Solar Panel Installation Company

The remaining key cost factor you should take into consideration is the installer you choose. Given the booming popularity of green energy solutions in Islip Terrace, you’ll have many options to choose from, but each comes at various price points for labor and equipment.The size of the company sometimes plays the most considerable role in the cost of installation. Larger national companies, like SunPro and Sunrun, often have lower pricing because they have access to more resources and bulk pricing. Smaller local companies might be more costly, but they can sometimes have better customer service and more customization options, and the occasional sale or promotion can bring their pricing down to compete with bigger names.

Solar Panel Cost Data by System Size

System sizeCost per system wattSolar system cost25-Year savingsPayback period
6 kW$3.80$15,943$18,59211.5 years
8 kW$3.72$20,849$25,19811.3 years
10 kW$3.65$25,550$32,00911.1 years
12 kW$3.58$30,047$39,02410.9 years
14 kW$3.50$34,339$46,24310.7 years
16 kW$3.43$38,427$53,66710.4 years
18 kW$3.36$42,311$61,29510.2 years
20 kW$3.29$45,990$69,12810.0 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 select the right ones for you. Here are some tips to keep in mind to help with your decision:

  • Contract: Even though reading through a contract can be tedious, it’s important to do it thoroughly so you can be sure you understand how much the equipment and services will cost and the terms of the warranty.
  • Reputation: The North American Board of Certified Energy Practitioners (NABCEP) is a respected certification organization for sustainable 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.
  • Warranty: A high-quality company rises above other companies by providing the gold standard warranty — a 25-year, all-inclusive warranty covering parts, labor and performance.
  • Solar Panel Brands: The brand of solar panel you need plays a role in which company you should go with, since different companies offer different panels.
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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 Islip Terrace, NY Solar Cost FAQs

What is the average cost of installing solar panels in Islip Terrace?

This is a hard question to answer exactly, because the cost depends on many factors. Generally speaking, it costs about $18,250 for a 5-kW system and $36,500 for a 10-kW system after the ITC is applied. You can expect to pay more if you want other solar equipment or more efficient panels, or if you have above-average energy needs. On the flip side, you can spend less if you choose a smaller solar panel system or less expensive solar panels.

Is it better to lease or buy solar panels in Islip Terrace?

Leasing solar panels can be an attractive choice, as it often comes with low or $0 upfront payments. The downside is that you won’t be able to save as much. If you lease, you don’t own the system, so you can’t claim any tax rebates and credits and your home value won’t increase. Buying solar panels is a better option if you want to get the most savings.

Is it worth going solar in Islip Terrace?

Whether or not solar panels are worth it depends on some different 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 what solar panel system size you need, you should find out how much energy your home uses and how much sunlight your home gets. For a general estimate, however, since each panel can usually 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.