Solar Panel Cost Guide in Wilmette, IL (2025 Update)
- Wilmette Solar Installation Cost: $16,818
- 25-Year Savings: $11,895
- Payback Period: 17.4 Years
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Average Cost of Solar Panels in Wilmette
Find out what the average cost of a solar system is in Wilmette.
The average cost of a solar system in Wilmette is 4 per watt.Because a 6.4-kW system is needed to cover the energy consumption of a typical home in Wilmette, the average price of going solar will be about $16,818 after claiming the federal solar tax credit of 0.
Keep in mind that the figures above are only estimates based on the average energy use of Wilmette homeowners. The price of a solar system for your home may look different depending on factors unique to you, like your household energy use and solar contractor.Despite the large upfront cost, the average Wilmette homeowner can save about $14,000 on their power bills over 20 years, which is one of the advantages of solar.
You can click the button below to get connected with a vetted solar installer in Wilmette that can help you get a more accurate cost estimate for your home.
Solar savings over time in Wilmette
| Year | Return on Investment |
|---|---|
| 1 years | $-15,662 |
| 3 years | $-13,350 |
| 5 years | $-11,038 |
| 7 years | $-8,725 |
| 9 years | $-6,413 |
| 11 years | $-4,100 |
| 13 years | $-1,788 |
| 15 years | $524 |
| 17 years | $2,837 |
| 19 years | $5,149 |
| 21 years | $7,461 |
| 23 years | $9,774 |
| 25 years | $12,086 |
Top Solar Installers in Wilmette
Although it's possible to install solar panels yourself, it involves extra effort and expertise. That's why most people choose a solar panel installer. Since solar panels are exposed to the elements every day, warranties and repairs from your solar installer can help you get the most out of your investment in solar panels by reducing potential costs down the line.
There are several licensed solar professionals that can help you install your solar panels. Here are our suggestions:
See all of the solar companies in Wilmette
Factors that Affect Solar Panel Costs in Wilmette
While the average cost of a solar system in Wilmette is $16,818, your final cost may be above or below the average. There are quite a few factors that can have a significant impact on the cost of a solar system installation. Below are some of the more crucial things to keep in mind.
Solar Equipment
The cost of solar panels varies by thousands of dollars due to some different factors. One of the main factors is the system size, which is measured in kilowatts (kW). Solar power systems that have greater efficiency or power production require better technology and/or more equipment, both of which can raise costs. For each additional kilowatt you need, your cost can go up by about $3,760.The brand and type of equipment you want for your solar system can raise or lower the price quite significantly. If you prefer a brand name like Tesla or SunPower, these often have a higher price tag 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 will be looking at a higher equipment cost, but this can typically lead to greater savings over time. Plus, if you want additional equipment like an electric vehicle charger or solar batteries, this will also increase the cost.
Solar Financing Terms
For some homeowners, paying for solar out of pocket can be difficult. Solar loans are offered by most installers in Wilmette, which can reduce, or in some cases eliminate, your upfront costs to make solar more affordable.When figuring out your overall cost, you should also calculate the interest you’ll pay if you choose to go with a solar loan. Also, paying more upfront can reduce the total interest paid over time.
Solar Panel Installation Company
The solar installer you choose to handle your switch to clean energy can have an effect on your total costs. There are about 3 solar panel companies operating throughout Wilmette, and each can charge varying amounts for labor and equipment.Additionally, some companies in Wilmette have more knowledge about local solar incentives and can help you take advantage of additional rebates or tax exemptions. However, they may charge more for that service. Even if they cost more upfront, they could help you save more money in the long run.
Solar Panel Cost Data by System Size
| System size | Cost per system watt | Solar system cost | 25-Year savings | Payback period |
|---|---|---|---|---|
| 6 kW | $3.91 | $16,424 | $6,211 | 18.1 years |
| 8 kW | $3.84 | $21,477 | $8,703 | 17.8 years |
| 10 kW | $3.76 | $26,320 | $11,405 | 17.4 years |
| 12 kW | $3.68 | $30,952 | $14,317 | 17.1 years |
| 14 kW | $3.61 | $35,374 | $17,440 | 16.7 years |
| 16 kW | $3.53 | $39,585 | $20,774 | 16.4 years |
| 18 kW | $3.46 | $43,586 | $24,318 | 16.0 years |
| 20 kW | $3.38 | $47,376 | $28,073 | 15.7 years |
How to Save on Solar Panels
There are many solar installers to choose from, all of which offer different warranties, solar panel models and price points. To help you decide on the right company for you, here are some tips to keep in mind:
- Reputation: Companies that have been operating for many years likely have a good reputation. This is important because it ensures that it will not only see your solar installation through, but will also provide adequate aftercare and customer support, such as part repairs and replacements.
- Solar Panel Brands: Each solar panel brand and kind has varying levels of quality, longevity and energy efficiency. They will come at different price points as well. The company you choose affects which solar panel brands you have access to.
- Warranty: An all-inclusive, 25-year warranty can help keep your solar panels running smoothly and save you money on repairs and maintenance.
- Contract: Before signing a contract with a solar installer, make sure to look it over fully so you understand the terms. Also, ask questions if you’re not sure about some of the terms, such as what the warranty covers and what services you can expect from them.
EcoWatch's Wilmette, IL Solar Cost FAQs
How much does it cost to install solar panels in Wilmette?
This is a hard question to answer exactly, because the cost depends on a variety of factors. Broadly speaking, it costs about $18,800 for a 5-kW system and $37,600 for a 10-kW system after the ITC is applied. It will be more expensive if you want other solar equipment or more efficient panels, or if you have higher-than-average energy consumption. On the flip side, you can spend less if you want a smaller solar panel system or cheaper solar panels.
Can you get solar panels for free in Wilmette?
You can’t get solar panels for free in Wilmette. However, you may still be able to afford them on a lower budget. You can lease solar panels for a low upfront cost or, if you want to own your solar panels, you can finance them with a solar loan.
Can solar panels completely eradicate my electricity bills?
It is possible to erase your electricity bills with solar panels, but for most homeowners in Wilmette, 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 contact a local solar installer to see how many panels can fit on your roof.
How many solar panels should I get to power my home?
The exact number of solar panels you need depends on your household energy consumption and the average daily sunlight your roof gets. You can look at your energy bills for the past year to get an idea of the solar system size you'll need. The average household has to get between 20 and 35 panels to account for their typical energy usage.
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.