About ilumen

Mission Statement

ilumen Solar is a commercial and residential solar developer in the NW Chicago suburbs. We specialize in a wide variety of commercial offerings and high-quality residential systems. Our main goal is to educate and promote solar energy initiatives throughout the northern regions of Illinois and to our local community. While doing this, we want to ensure the projects are done to the highest degree of craftsmanship, communication, transparency, and thoroughness to ensure high quality systems for the typical 25+ year life span.

Zach Witt, owner and founder of ilumen Solar, was born and raised in Barrington, IL.  Witt graduated from Barrington High School in ’05 and studied Business Management and Entrepreneurship at Montana State University.  Along the way, an appreciation for the outdoors led to a passion for protecting it.  In 2016 that passion led to starting ilumen Solar with the mentality of “if we don’t start a solar business here then we’d be doing a disservice to the community”. 

Witt is a certified NABCEP Technical Sales Professional, on the Board of Directors at the Barrington Chamber, High School business mentor for Barrington District 220, and continually looking for ways to get involved and make a positive change. 

We Operate Differently

Site Visits:

Our site visit and drone flights are conducted before the final proposal, not after the order is signed. We aim to have the most accurate production estimates as possible which leads to accurate financials of the system and good long-term customer experience.

Meticulous Design:

We are meticulous with design and aesthetics. In most cases, solar is a visible appliance, so it should have a quality appearance. (This is our specialty)

Detailed Consultation:

We don’t cut corners.

All roof conduits will be hidden in the attic unless it’s physically not possible or doesn’t make sense.

We aim to have all, or most equipment sourced in North America.


Our financing options are easy and straightforward. No hidden dealer fees, just simple interest rate terms which are easy to understand.

We always look out for the best interest of our clients. Whether that is spending extra hours on the perfect design, suggesting creative payment options, or simply letting you know solar might not be a good fit.

We provide exceptional and timely customer service.

Ilumen Solar was founded locally in Barrington, IL to promote and install solar in the area because it’s important. Pure and simple.


Referral Program






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