United States
Transformers & Switchgear
in Seattle.
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 Seattle. 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.
Seattle is supplied by Seattle City Light (SCL) — the 10th-largest publicly-owned utility in the US and the first major US city utility to achieve carbon-neutral electricity (2005, sustained). SCL operates 13.2/26.4 kV at MV and 115/230 kV at transmission, with bulk supply from Skagit and Boundary hydro complexes (1,200 MW combined) and BPA federal hydropower. The grid runs in the Western Interconnection's Pacific Northwest sub-area. Demand drivers include the Microsoft and Amazon HQ data-centre clusters, the Port of Seattle shore-power conversion (eliminating diesel APUs at all cruise/container berths by 2030), Sound Transit Link light-rail traction, and the Boeing Renton/Everett facilities. Specifications follow IEEE C57.12.00 with SCL's pad-mount Standard 6014 (stainless-steel enclosure, IEEE C57.12.28-tamper-resistant), copper windings and ester-fluid mandatory for vault installations. Coastal salt-fog and high rainfall (940 mm/yr) drive C5-M corrosion class. Tender hints: SCL uses a closed QPL — pre-qualification requires three Pacific Northwest reference projects.
Other markets in United States
Nearby cities we serve.
Product catalogue
Recommended products for Seattle.
A curated portfolio of transformers and switchgear matched to local utility specifications, standards and project drivers.
Frequently Asked Questions — Seattle
Lead times for transformers and switchgear delivered to Seattle 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 Seattle?
Regionally compliant transformers and switchgear delivered to Seattle with witnessed FAT and on-site commissioning.