United States
Transformers & Switchgear
in Chicago.
ETS manufactures IEEE C57-compliant power transformers, distribution transformers, switchgear and package substations to utilities, EPC contractors, oil & gas operators, renewable developers and data-centre projects across Chicago. Triple-certified manufacturing (IEC, ANSI/IEEE, UL) supports utility-grade procurement with witnessed FAT, ISO/IEC 17025 testing and turnkey delivery.
Market context
Local grid, utilities, climate and procurement.
Chicago is supplied by ComEd (Commonwealth Edison, Exelon subsidiary) on a 12/34.5 kV MV grid stepped down from 138/345 kV transmission. ComEd serves 4 million customers across northern Illinois, with Chicago itself driving demand through the downtown 'Loop' high-density network — one of the few US cities still operating a 4 kV legacy network alongside the modern 12 kV system. Procurement is shaped by the O'Hare International Airport modernisation programme, the Lincoln Yards and 78 development corridors, the Climate & Equitable Jobs Act mandate (100% clean energy by 2050) driving distribution-network upgrades, and the data-centre cluster in Aurora and Elk Grove Village. Specifications follow IEEE C57.12.00 / C57.12.34 with ComEd's PA-PR-1 material spec adding low-noise NEMA TR-1 Level B limits for urban units, partial-discharge testing and PCB-free certification. Tender hints: ComEd procures via Exelon's central sourcing organisation; multi-year framework agreements dominate.
Other markets in United States
Nearby cities we serve.
Product catalogue
Recommended products for Chicago.
A curated portfolio of transformers and switchgear matched to local utility specifications, standards and project drivers.
Frequently Asked Questions — Chicago
Lead times for transformers and switchgear delivered to Chicago depend on the specification, scope of supply, order volume and prevailing factory load — distribution transformers (11–33 kV, up to 5 MVA) typically build and test faster than power transformers (33 kV and above, up to 60 MVA), and every quoted programme includes witnessed Factory Acceptance Testing and agreed delivery terms. Please contact ETS with your technical schedule for a project-specific delivery plan.
Operating elsewhere?
See our markets in other regions.
Procuring for Chicago?
Regionally compliant transformers and switchgear delivered to Chicago with witnessed FAT and on-site commissioning.