United States
Transformers & Switchgear
in San Francisco.
ETS delivers 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.
Utility partners in San Francisco
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
For projects in San Francisco, ETS quotes 16–20 weeks for distribution transformers (11–33 kV, up to 5 MVA) and 22–28 weeks for power transformers (33 kV and above, up to 60 MVA), inclusive of witnessed Factory Acceptance Testing to PG&E specifications and ex-works delivery. Express slots are sometimes available for repeat customers — confirm at quote stage.
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.



