Solar Panel Cost Guide in Stony Brook, NY (2025 Update)
- Stony Brook Solar Installation Cost: $9,930
- 25-Year Savings: $14,345
- Payback Period: 11.1 Years
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Average Cost of Solar Panels in Stony Brook
Find out what the average cost of solar panel installation is in Stony Brook.
In Stony Brook, solar panels cost about 4 per watt on average.To cover the typical energy usage of the average home in Stony Brook, most homeowners require a 3.9-kilowatt system. Using the per-watt figure above, a solar installation costs about $9,930, or $14,200 before the federal solar tax credit of 0 is applied.
The prices above are just estimates to give you an idea of the cost of a solar panel system. The true cost of installing solar panels can vary depending on several factors, such as what size system you need, your energy usage and what company you go with.With average savings of about $22,000 on power bills over 20 years, many homeowners in Stony Brook find installing solar panels can be quite rewarding.
For a customized quote from a local solar company that has been pre-vetted by EcoWatch, click the button below.
Solar savings over time in Stony Brook
| Year | Return 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 Stony Brook
When going solar, many homeowners choose to hire a solar installer since handling can be a challenging project. Local solar installation companies can also help you optimize your return on investment by assisting with any local incentives you can benefit from and by providing warranties and repairs.
If you’d like to go solar but still aren’t certain which solar company to go with, here are our suggestions for providers nearby:
See all of the solar companies in Stony Brook
Factors that Affect Solar Panel Costs in Stony Brook
Although the average cost of a solar system in Stony Brook is $9,930, your actual cost may be higher or lower than that. There are many factors that can have a major impact on the cost of a solar panel installation. Below are some of the more crucial things to take into consideration.
Solar Equipment
The size of the solar energy system you need for your household, 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 about $3,650. The solar equipment you choose can increase or decrease your cost by thousands or even tens of thousands of dollars. If you choose the most efficient solar panel brands, you’ll end up paying more upfront than if you opted for the most affordable panels. On the other hand, more efficient panels could save you more over time on your energy bills. In addition, extra products, like solar batteries, can bring your total well above the Stony Brook average.
Solar Financing Terms
Most solar installers in Stony Brook provide solar loans, which reduce your upfront costs of installing solar.It’s wise to add the interest you’ll pay in your final cost estimate. If you can afford to put more money down upfront, you can reduce your total costs and the amount of time it’ll take to pay off the loan.
Solar Panel Installation Company
A final factor to keep in mind when trying to evaluate the cost of solar for your home or business in Stony Brook is the company you get to install your solar system. As with choosing a company to build a deck or pool, for example, you’ll have many options for solar installers that offer a range of services for different budgets.Some companies 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 with an above-average cost. It’s best to do some research and go with the company that offers the products, warranties and services you’re looking for and also fit into your budget.
Solar Panel Cost Data by System Size
| System size | Cost per system watt | Solar system cost | 25-Year savings | Payback period |
|---|---|---|---|---|
| 6 kW | $3.80 | $15,943 | $18,592 | 11.5 years |
| 8 kW | $3.72 | $20,849 | $25,198 | 11.3 years |
| 10 kW | $3.65 | $25,550 | $32,009 | 11.1 years |
| 12 kW | $3.58 | $30,047 | $39,024 | 10.9 years |
| 14 kW | $3.50 | $34,339 | $46,243 | 10.7 years |
| 16 kW | $3.43 | $38,427 | $53,667 | 10.4 years |
| 18 kW | $3.36 | $42,311 | $61,295 | 10.2 years |
| 20 kW | $3.29 | $45,990 | $69,128 | 10.0 years |
How to Save on Solar Panels
Since the model 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 things to keep in mind to help with your decision:
- Contract: When looking through your solar company’s contract, ask for clarification about any terms you’re not sure of and be sure you understand what happens in scenarios like a system component breaking or the company going out of business.
- Warranty: Each company may offer different kinds of warranties that provide different kinds of coverage. A 25-year, all-inclusive warranty is the gold standard.
- Reputation: Make sure your solar installer has a good reputation by verifying it has certifications and licenses, checking how long it's been in business and reading reviews by previous customers and solar experts like the EcoWatch team.
- Solar Panel Brands: Each solar panel brand and model has varying levels of quality, durability and energy efficiency. They will come at different costs as well. The company you choose affects which solar panel brands you have access to.
EcoWatch's Stony Brook, NY Solar Cost FAQs
How much does it cost to install solar panels in Stony Brook?
The average cost of solar panels in Stony Brook is about $18,250 for a 5-kW system and $36,500 for a 10-kW system before the ITC, but the actual cost will depend on certain factors like the kind of solar panels you want, what size system you need and how much energy you use.
Can you get solar panels for free in Stony Brook?
Solar panels aren’t free in Stony Brook, but there are some options that can make getting them more feasible, such as leasing solar panels or getting a solar loan. There may also be local programs or incentives that you can take advantage of.
Does Stony Brook have a net metering program?
Each state has some kind of net metering programs except Tennessee, South Dakota and Alabama currently. Some states allow you to sell power back to the grid, but others just give you credit toward your future power bills.
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 requires 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.