Unofficial Notice of Invitation to Bid (NIB)

Glendale City is seeking bids from qualified and interested contractors for the following project titled, Mobile Substation Procurement Project, identified under Solicitation ID: 3941. Work is to be performed near 613 E Broadway, Glendale, CA 91206, USA in Los Angeles County.

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General Project Description

The City of Glendale, through Glendale Water and Power (GWP), is soliciting proposals for an Engineering, Procurement, and Construction (EPC) contract to deliver one (1) fully engineered, manufactured, tested, and functional 15 MVA mobile substation. The mobile substation is designed for temporary service restoration, planned outages, and emergency response across Glendale’s twelve (12) substations. It will be trailer-mounted, oil-insulated, forced-oil and forced-air cooled, with a 69 kV / 34.5 kV high-side to 12.47 kV / 4.16 kV low-side dual-voltage system, and engineered for a 30-year life expectancy. The scope includes provisions for a 1200 A, 72 kV, 40 kA high-side circuit breaker, a 2000 A, 15 kV, 25 kA vacuum low-side circuit breaker, relaying, controls, AC/DC auxiliary systems, grounding, spill containment, and trailer accessories. The design must ensure the entire unit is transportable on public highways without requiring over-width or over-height permits and conform to all applicable industry standards (e.g., IEEE, ANSI, NEMA, ASTM, Caltrans, U.S. DOT).

General Bid Items

Quantity: 1 Unit: LS Work Item: Engineering, Design, and Project Management
Quantity: 1 Unit: LS Work Item: Mobile Substation System, Specifications: 15 MVA continuous operating capacity, trailer-mounted, oil-insulated, forced-oil and forced-air cooled, 60 Hz, two-winding step-down power transformer; 69 kV / 34.5 kV high-side to 12.47 kV / 4.16 kV low-side dual-voltage system; (1) 1200 A, 72 kV, 40 kA high-side circuit breaker; (1) 2000 A, 15 kV, 25 kA vacuum low-side circuit breaker; includes switchgear, protection and control, auxiliary AC/DC systems, grounding, spill containment provisions, trailer, transport configuration, factory assembly, integration, and Factory Acceptance Testing (FAT).
Quantity: 1 Unit: LS Work Item: Transportation and Delivery, Commissioning, and Training
Quantity: 1 Unit: LS Work Item: As-Built Drawings, Manuals, & Final Documentation
Quantity: 1 Unit: LS Work Item: Power Cables (high-side and low-side)
Quantity: 2 Unit: LS Work Item: Cable Reel Trailers (high-side and low-side), Specifications: TPC P/N Trail-142921 (aluminum deck-over flatbed with gas-over-hydraulic powered reel stand and lockable cover) or approved equal.
Quantity: 1 Unit: LS Work Item: Extended Warranty (additional 2 years)

NAICS Classification

237130 – Power and Communication Line and Related Structures Construction, 335311 – Power, Distribution, and Specialty Transformer Manufacturing, 541330 – Engineering Services, 484220 – Specialized Freight (except Used Goods) Trucking, Local, 238210 – Electrical Contractors and Other Wiring Installation Contractors, 541620 – Environmental Consulting Services

Records and Due Date

This bid opportunity was entered into BidAmerica on February 12, 2026, and was last updated on February 12, 2026. All bids and/or proposals are due on April 13, 2026.

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Legal Disclaimer

All bidders are responsible for reviewing and verifying all official bid documentation directly from the issuing agency. BidAmerica aggregates public bid information for advertisement purposes for contractors and government agencies convenience. This Notice of Invitation to Bid is for reference purposes only and is not an official or complete representation of any documents issued by Glendale City. BidAmerica does not guarantee the accuracy, completeness, or timeliness of any information displayed and shall not be held liable for any errors, omissions, misinterpretations, or damages resulting from reliance on this summary. Contractors must obtain all official information—including plans, specifications, addenda, deadlines, submission requirements, qualifications, and bidding conditions—directly from Glendale City prior to bidding.