Solar Panel Cost Guide in Key West, FL (2025 Update)
- Key West Solar Installation Cost: $11,253
- 25-Year Savings: $21,829
- Payback Period: 9.2 Years
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Average Cost of Solar Panels in Key West
Find out what the average cost of solar panels are in Key West.
The average cost of solar panels in Key West is 3 per watt.To cover the typical energy needs of the average home in Key West, most homeowners require a 5.0-kilowatt system. Using the figure above, a solar installation costs about $11,253, or $16,092 before the federal solar tax credit of 0 is applied.
Keep in mind that the numbers above are only averages. The price you’ll end up paying for solar will differ based on your household energy needs, the type of solar system you want, your solar contractor and more.Many homeowners find adopting solar power is a rewarding investment. The average homeowner in Key West can save around $23,000 on their power bills over 20 years.
To get a free estimate from a vetted solar installation company in Key West, you can click the button below.
Solar savings over time in Key West
| Year | Return on Investment |
|---|---|
| 1 years | $-9,584 |
| 3 years | $-6,245 |
| 5 years | $-2,906 |
| 7 years | $433 |
| 9 years | $3,772 |
| 11 years | $7,111 |
| 13 years | $10,450 |
| 15 years | $13,789 |
| 17 years | $17,128 |
| 19 years | $20,467 |
| 21 years | $23,806 |
| 23 years | $27,145 |
| 25 years | $30,484 |
Top Solar Installers in Key West
DIY solar panel installation is a choice some homeowners opt for, but it's an undertaking that can use up a lot of your time and energy. Going with a solar company can make your switch to solar power much easier. Another good thing about going with a reputable solar installer is that it'll likely provide warranties and free repairs, which help protect your investment.
You can work with a local solar installer to get a free estimate on how much your investment in solar could cost for your home. Here are some near you:
See all of the solar companies in Key West
Factors that Affect Solar Panel Costs in Key West
Even though the average cost of a solar system in Key West is $11,253, your actual cost may be above or below the average. There are several factors that can have a sizable impact on the cost of a solar system installation. Below are some of the more important things to consider.
Solar Equipment
The size of the solar panel system you need for your home, which is measured in kilowatts, is the most important cost factor to consider. For every additional kilowatt you need, you can expect your total to increase by about $3,210. Some solar brands — like Maxeon from SunPower — are more expensive upfront but also tend to offer higher efficiency. In a city like Key West, where sunlight is 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 a better option. Additional equipment like electric vehicle chargers and solar batteries will also increase the cost.
Solar Financing Terms
Many homeowners find the average cost of solar in Key West to be prohibitively costly, even if the investment pays off over time. Thankfully, almost every solar installer in the area provides financing options. Solar loans remarkably decrease upfront costs in most cases, but they also result in higher prices over time due to interest.You’ll have to consider the long-term cost of financing options, 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 more than the original cost. Making a larger down payment or getting a solar loan with a low interest rate could reduce your costs significantly.
Solar Panel Installation Company
The solar installer you opt for to handle your switch to clean energy can play a part in your total costs. There are about 3 solar installation companies in Key West, and each can charge different amounts for labor and equipment.The size of the company can sometimes play the most significant role in the installation costs. Larger national companies, like SunPro and Sunrun, often have lower pricing because they have access to greater 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 discount can bring their pricing down to compete with bigger companies.
Solar Panel Cost Data by System Size
| System size | Cost per system watt | Solar system cost | 25-Year savings | Payback period |
|---|---|---|---|---|
| 6 kW | $3.34 | $14,021 | $22,756 | 9.5 years |
| 8 kW | $3.27 | $18,336 | $30,701 | 9.3 years |
| 10 kW | $3.21 | $22,470 | $38,826 | 9.2 years |
| 12 kW | $3.15 | $26,425 | $47,130 | 9.0 years |
| 14 kW | $3.08 | $30,200 | $55,615 | 8.8 years |
| 16 kW | $3.02 | $33,795 | $64,279 | 8.6 years |
| 18 kW | $2.95 | $37,210 | $73,122 | 8.4 years |
| 20 kW | $2.89 | $40,446 | $82,146 | 8.2 years |
How to Save on Solar Panels
The company that does your system installation will affect the warranties and brands available to you, and it will also have an impact on your total cost. Since selecting a company can be a tough decision, we have some tips to help you, such as:
- Warranty: A high-quality company rises above other companies by offering the gold standard warranty — a 25-year, all-inclusive warranty covering parts, labor and performance.
- Installation Process: When making the switch to solar energy, it’s important to keep an open line of communication with your solar company. See to it that you understand how the installation process works and the completion timeline.
- 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 solid reputation and is qualified to do the job well. Another way you can research your installer’s reputation is by reading reviews.
- Solar Panel Brands: Each solar panel brand and kind offers varying levels of quality, durability and efficiency. They will come at different price points as well. The company you choose affects which solar panel brands you have access to.
EcoWatch's Key West, FL Solar Cost FAQs
How much does it cost to install solar panels in Key West?
This is a tough question to answer exactly, because the cost depends on a few different factors. Broadly speaking, it costs about $16,050 for a 5-kW system and $32,100 for a 10-kW system after the ITC is applied. It will be more expensive if you want extra solar equipment or more efficient panels, or if you have higher-than-average energy needs. On the flip side, you can spend less if you go with a smaller solar panel system or less efficient solar panels.
Are solar panels free in Key West?
A solar panel system isn’t free in Key West, but there are some options that can make getting them more viable, such as leasing solar panels or getting a solar loan. There may also be local programs or incentives that can further reduce the cost.
Is switching to solar power worth it?
Solar panels can be a fruitful investment for lots of homeowners, but they might not be worth it for everyone. If your home doesn't get enough sunlight and/or your energy bills are already reasonably low, solar panels might not be for you.
How many solar panels do I need to power my home?
To figure out how many solar panels 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.