Why are millions of Illinoisans going solar?
Lower Costs By 30-50%
Save 30-50% on energy costs from day one
No upfront or out-of-pocket cost
Switch to solar without any upfront investment
Pay the same amount every month
Lock in decades of low energy rates
Up to 30% off your total solar costs
Eligible homeowners can get up to 30% back in tax credits
No Upfront Costs To Switch
Switch to solar without upfront investment
Avoid Energy Rate Increases
Lock in decades of low energy rates
30% Off Your Solar Costs
Eligible homeowners can get up to 30% back as tax credits
Illinois may not be the sunniest state in the nation, but it's great incentives make solar panels a worthwhile investment for pretty much anyone in the Prairie State.
Joule helps you explore your solar options
If you're thinking about solar, Joule helps you estimate your savings and compare local installers without hassle or pressure.
Get instant results
We will analyze your address and local utility provider to share cost saving information for your home.
Smart questions you may be asking...
How much of my home can be powered by solar?
Many homeowners want a system that covers 100% of their energy needs, but that's not always possible. You may even want to produce excess energy. A free consultation will get you an accurate calculation for your needs.
What solar incentives are available in Illinois?
Illinois has arguably the best solar incentives in the nation, but these programs decrease in value as more people go solar, so don't wait!
Discover the solar potential of your Illinois home.
The average homeowner in Illinois saves over $1,200/year. Get started to see your solar costs & savings in 60 seconds.
Illinois Solar Guide 2025
$0 upfront
Save 30-50%
Locked-in rate
16,431 Illinoisans received hassle-free quotes in the last 30 days
Provide basic info
Answer a few quick questions about your home and energy needs. We'll calculate savings and provide your free analysis.
Compare local providers
See top rated solar providers near you. Compare costs and make smart financial choices regarding your solar project.
The short answer: up to 30-50% less than your current electric bill. Below are some factors that influence solar costs.
How much does solar cost in Illinois?
Current Energy Usage
More energy used = more panels to offset that energy
Roof Size & Layout
This determines how many panels you can fit and how efficient those panels will be
Local Incentives
Without net metering, your savings will be lower than a home that does have it.
Claim Illinois solar incentives before it's too late.
Illinois' incredible solar programs are designed to decrease in value as more people go solar, which means waiting is literally costing you thousands. Find out how much you could be eligible to receive.
You may be eligible for a tax credit of up to 30% of the total cost of installing your system. An energy advisor can get you accurate numbers.
30% Federal Solar Tax Credit
Check your incentives
Illinois Shines Rebate
Illinois Shines enables homeowners to sell energy credits to the utility for a one-time, up front rebate averaging $6-7,000.
See if you qualify
Property Tax Exemption
Solar has been shown to increase home value by 4-7%. In Illinois, your property taxes won't increase due to installing solar.
Claim property tax exemption
Calculate your solar incentives
It's easy to find out! Just enter basic info about your home and energy needs and see your home's solar potential.
Solar plans for every family and any budget
Solar PPA
No loan or upfront cost
No maintenance costs
Save 30-50% from day one
Power production guarantee
Solar PPA
Most popular option for homeowners
Solar Loan
No loan or upfront cost
Increased home value when paid off
Save 30-50% from day one
Reduce loan amount with incentives
Ownership with $0 down or upfront
Solar Purchase
Most lifetime savings
Increased home value
Save 90-100% from day one
Most lifetime savings
Most lifetime savings, but large upfront cost
Increased home value
Save 90-100% from day one
Keep your solar incentives
Solar Purchase
Most lifetime savings
Save 90-100% from day one
No upfront costs
Ownership with $0 down
Increased home value
Save 30-50% from day one
Reduce loan with incentives
Solar Loan
Solar Purchase
Most popular option for homeowners
Most lifetime savings
Save 90-100% from day one
No loan or upfront costs
No maintenance costs
Save 30-50% from day one
Power production guarantee
Solar PPA
How do you screen solar installers?
We only work with installers who meet our rigorous standards: A+ BBB rating, 5+ years of experience, perfect licensing, and top customer ratings. Each installer undergoes thorough background checks and must maintain our strict quality standards to remain in our network.
Will solar panels hurt my roof?
When installed correctly, getting solar panels installed on your home should not damage your roof. Make sure your solar system is installed by a licensed, qualified professional, like the ones pre-vetted in our network.
What if I move?
That's not problem at all. Your solar company will work with you to transfer the panels over to the new homeowner and you get to walk away without any strings attached.
How much does solar cost?
There is no out-of-pocket cost to you to get started. If you can afford your current utility bill then you can absolutely afford to switch to solar. You’ll pay nothing upfront, enjoy decades of lower power rates, and protect yourself against rising utility rates.
How many solar panels do I need?
For 100% energy coverage, the average household in the United States will need about 20 to 25 panels. This estimate will fluctuate with factors such as your household’s energy habits, sun exposure, geographic location and panel efficiency.
Still have questions? We'd love to hear from you.
Wow! With solar you could save
🥳
$43,269
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We've done your solar homework for you
Highly Rated
All of our installer partners have hundreds of five star reviews
In-Depth Vetting
Joule vets every installer to ensure they are NABCEP certified, licensed, and insured
Our network of pre-screened installers means you can find the right installer for you in minutes and save up to 20% more.
Years of Experience
Our installers all have 5+ years of experience and have completed at least 1,000 installs
Utility Cost Over 25 Years
36¢/watt
Solar Cost Over 25 Years
11.5¢/watt
You'll pay 3x more to your utility over 25 years
Escape the monopoly by generating your own clean, affordable power.
Since you made it this far...
There's nowhere left to scroll, but perhaps we can tempt you with seeing your solar savings in less than 2 minutes?
Discover the solar potential of your Illinois home.
The average homeowner in Illinois saves over $1,200/yr with solar. Get started to see your personalized savings and cost estimate.
Illinois Solar Guide 2025
$0 upfront
Save 30-50%
Locked-in rate
The numbers don't lie
On average, homeowners in Illinois can expect higher savings and bigger systems than the national average.
$77,006
Average savings over 25 years
30
Average number of 400w panels needed
95%
Average percentage of home energy offset
