Generac Industrial Energy delivers true mission‑critical power solutions far beyond residential or light commercial backup systems. Zonatherm Products is the exclusive representative for Generac Industrial Energy across Chicagoland, Northern Illinois & Northwest Indiana. We provide power at a scale where uptime isn’t just a preference, it’s non‑negotiable.

large-scale power

Generac Industrial Energy delivers powerful, reliable industrial generators up to 3.25 megawatt with paralleling options for multi‑megawatt systems that are built specifically for demanding, mission‑critical environments.

From diesel and natural gas to battery energy storage options, these industrial generators are not consumer or light-commercial units, they are part of a total energy ecosystem designed to generate, manage, and distribute power seamlessly and efficiently on a large scale.


built for critical applications

Industrial operations need more than backup… they need resilience. Generac Industrial Energy’s industrial line of generators is purpose‑engineered for facilities where power loss affects safety, output, compliance, and revenue.

Healthcare: Life‑safety systems and surgical suites
Data Centers: Multi‑megawatt capacities
Municipalities: Wastewater and public infrastructure
Education: Labs, research centers, campus‑wide life‑safety loads
Manufacturing: Protect throughput and automation


Local Expertise, Delivered by Zonatherm

Selecting the right industrial power system is complex. That’s why Generac Industrial Energy partners exclusively with Zonatherm Products throughout Chicago, Northern Illinois & Northwest Indiana. With Zonatherm, you’re not working with a supplier, you’re working with a local power engineering partner who understands your facility, your codes, and your timelines. We provide local engineering support for design, sizing, layout, and compliance, as well as coordination for installation and commissioning along with ongoing service and maintenance support.