Join the solar revolution! Experience the best service, support, and equipment in IL for $0 down. Calculate your savings instantly.

Calculate Your Solar Savings.

It's Simple.

Full Name *

Cell Phone *

Email

Address

Street Address

City *

State *

Postal code *

Do you own your home? *

Yes

No

Does your roof get sunlight? *

Full Sunlight

Some Shade

Severe Shade

Uncertain

Whats your credit score? *

Excellent (720+)

Great (650-720)

Good (580-640)

Fair (580 and below)

Maximize your Savings

We’ll help you access all state and federal tax incentives, net metering, and other rebates to cut your system’s total cost.

25 Year Guarantee

We provide complete coverage of the system, labor, and workmanship for 25 years, giving you both peace of mind and all the benefits of solar.

Best In Class Equipment

We’ll custom design plans for your home and use best-in-class panels and micro-inverters to make your home the talk of the town.

Flexible Payment Options

On top of maximized savings, we require $0 down, and offer monthly payment options lower than your existing electrical bill.

What Our Customers Are Saying

See Why The Smartest (And Happiest) Customers Choose Cortese Energy

Thinking about going solar?

We’ll tell you how much you’ll save. Get a quote to learn how much you could save on your electric bill within seconds.