Solar Panel Cost Guide in Williamson, AZ (2025 Update)
- Williamson Solar Installation Cost: $11,366
- 25-Year Savings: $23,053
- Payback Period: 8.7 Years
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Average Cost of Solar Panels in Williamson
Let’s have a look at the average cost of solar in Williamson.
The average cost of a solar system in Williamson is 3 per watt.To account for the typical energy needs of the average home in Williamson, most homeowners require a 5.3-kilowatt system. Using the figure above, a solar installation costs around $11,366, or $16,253 before the federal solar tax credit of 0 is applied.
These figures are only averages, and how much solar costs for you may look different based on factors unique to your home and what company you choose to go with.With typical savings of about $24,000 on electricity bills over 20 years, many homeowners in Williamson find installing solar panels has a decent ROI.
To see your potential ROI and connect with a local solar installer, click the button below.
Solar savings over time in Williamson
| Year | Return on Investment |
|---|---|
| 1 years | $-9,701 |
| 3 years | $-6,370 |
| 5 years | $-3,039 |
| 7 years | $292 |
| 9 years | $3,624 |
| 11 years | $6,955 |
| 13 years | $10,286 |
| 15 years | $13,617 |
| 17 years | $16,948 |
| 19 years | $20,279 |
| 21 years | $23,610 |
| 23 years | $26,941 |
| 25 years | $30,272 |
Top Solar Installers in Williamson
Putting up solar panels yourself can be a challenging task, which is why hiring a solar installation company is a good option for many homeowners. A solar company can also help save you money over the lifespan of your system by offering warranties, repairs and component replacements.
If you’d like to go solar but still aren’t sure which solar system installer to go with, here are our suggestions for providers nearby:
Best for Leasing
Sunrun
- 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 Williamson
Factors that Affect Solar Panel Costs in Williamson
Cost is typically one of the most important factors for homeowners considering investing in solar. There are a few primary factors that determine your overall cost in Williamson: solar equipment and system size, financing options and the solar installation company you choose. We’ll cover each of these briefly below.
Solar Equipment
When it comes to estimating the price of a solar energy system in Williamson, one of the most crucial factors is the size of the system you need. Solar systems are sized by kilowatts (kW) and are mainly based on your home’s energy usage, which you can determine by looking at past electricity bills. Your total cost can increase by about $3,070 for each additional kilowatt you need.The type of solar equipment you choose can bring your price up or down by thousands or even tens of thousands of dollars. If you opt for the most efficient solar panel brands, you’ll end up paying more upfront than if you opted for the most affordable panels. However, more efficient panels could save you more in the long run on your power bills. In addition, extra products, such as solar batteries, can bump up your total well above the Williamson average.
Solar Financing Terms
Solar panels can save you money on energy bills over many years, but they can also be a big investment. That’s why many Williamson homeowners opt to finance their solar panel systems to make going solar more affordable.However, the interest on solar loans also adds to your total costs, so it’s crucial to keep that in mind as well. You can always lower the total you pay in interest and sometimes even your APR by making a larger down payment.
Solar Panel Installation Company
Lastly, the company you choose to install your solar system can impact how much it costs. Williamson’s solar companies all have different labor costs and add varying upcharges to equipment. The size of the company can sometimes play the most considerable role in the cost of installation. Larger national companies, like SunPro and Sunrun, often have lower prices due to more resources and bulk pricing. Smaller local companies might be more costly, but they generally have better customer service and more customization options, and the occasional sale or promotion can bring their pricing lower to compete with bigger names.
Solar Panel Cost Data by System Size
| System size | Cost per system watt | Solar system cost | 25-Year savings | Payback period |
|---|---|---|---|---|
| 6 kW | $3.19 | $13,410 | $23,703 | 9.0 years |
| 8 kW | $3.13 | $17,536 | $31,948 | 8.9 years |
| 10 kW | $3.07 | $21,490 | $40,365 | 8.7 years |
| 12 kW | $3.01 | $25,272 | $48,954 | 8.5 years |
| 14 kW | $2.95 | $28,883 | $57,714 | 8.3 years |
| 16 kW | $2.89 | $32,321 | $66,647 | 8.2 years |
| 18 kW | $2.82 | $35,587 | $75,752 | 8.0 years |
| 20 kW | $2.76 | $38,682 | $85,028 | 7.8 years |
How to Save on Solar Panels
Since the type of solar panels and the installer you choose considerably influences your costs and your system’s durability and efficiency, it’s important to select the right ones for you. Here are some tips to keep in mind to help with your decision:
- Installation Process: Homeowners should understand how exactly the installation process will be carried out, as well as important factors like the project completion timeline.
- Contract: 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 how part repairs and replacements will be handled.
- Reputation: Make sure your solar panel installer has a good reputation by confirming it has certifications and licenses, checking its work history and reading reviews by previous customers and solar experts like EcoWatch.
- Solar Panel Brands: Different companies carry various brands and types of panels. If you want a specific brand, make sure the solar company you’re considering has it.
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch's Williamson, AZ Solar Cost FAQs
What is the average cost of installing solar panels in Williamson?
The average cost of solar panels in Williamson is about $15,350 for a 5-kW system and $30,700 for a 10-kW system before the ITC, but the actual cost will depend on things like the type of solar panels you want, what size system you need and how much energy you use.
Are solar panels free in Williamson?
A solar panel system isn’t free in Williamson, but there are some options that can make getting them more affordable, such as leasing solar panels or getting a solar loan. There may also be local programs or incentives that you can take advantage of.
Is going solar worth it?
Solar panels can be a fruitful investment for a majority of homeowners, but they might not be worth it for everyone. If your home doesn't get enough sunlight and/or your power bills are already pretty low, solar panels might not be for you.
How often do you have to replace solar panels?
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 larger level 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.