United States
Transformers & Switchgear
in San Francisco.
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 San Francisco. 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.
San Francisco is supplied by PG&E (Pacific Gas & Electric), operating an unusual 12/21 kV MV system (legacy 4 kV pockets remain in older neighbourhoods) and 115/230 kV transmission interconnected with the CAISO ISO-balanced grid. The Bay Area grid is shaped by post-wildfire seismic and Public Safety Power Shutoff (PSPS) hardening — every new transformer must meet IEEE 693 high seismic qualification, IEEE C57.12.00 utility-grade specs, and PG&E's Material Standard Specifications including factory-assembled mobile-substation interfaces for emergency restoration. Demand drivers: the BART/Muni rail-traction expansion, the Salesforce Tower / Mission Bay biotech cluster, Port of San Francisco shore-power for cruise vessels, and the Mid-Market data-centre micro-cluster. Coastal fog, salt aerosol and 35 °C inland summer ambient mandate IEEE C57.12.28 stainless-steel pad-mount enclosures and ester-fluid options. Tender hints: PG&E procurement runs through Ariba SLP with mandatory CalFire ignition-resistance certification on all overhead transformers.
Other markets in United States
Nearby cities we serve.
Product catalogue
Recommended products for San Francisco.
A curated portfolio of transformers and switchgear matched to local utility specifications, standards and project drivers.
Frequently Asked Questions — San Francisco
Lead times for transformers and switchgear delivered to San Francisco 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 San Francisco?
Regionally compliant transformers and switchgear delivered to San Francisco with witnessed FAT and on-site commissioning.



