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The DEPT OF DEFENSE | DEPT OF THE ARMY has issued a Tender notice for the procurement of a Presolicitation the Dalles Dam Generator Stepup Gsu Transformer T9, T10, and Optional T11 Repair and Refurbishment in the USA. This Tender notice was published on 31 Jul 2026 and is scheduled to close on 13 Aug 2026, with an estimated Tender value of Refer Document. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 146284645, while the tender notice number is W9127N26RA017 and Registering on the platform.
Procurement Summary
Country: USA
Summary: Presolicitation the Dalles Dam Generator Stepup Gsu Transformer T9, T10, and Optional T11 Repair and Refurbishment
Deadline: 13 Aug 2026
Posting Date: 31 Jul 2026
Other Information
Notice Type: Tender
TOT Ref.No.: 146284645
Document Ref. No.: W9127N26RA017
Competition: ICB
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: Refer Document
Purchaser's Detail
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Login to see detailsTender Details
The U.S. Army Corps of Engineers (USACE), Portland District, intends to issue a Request for Proposals (RFP) for the repair and refurbishment of two (2) Generator Step-Up (GSU) power transformers (T10 and T9), with an option for repair and refurbishment of a third transformer (T11), located at The Dalles Dam in The Dalles, Oregon.
The Government intends to award one Firm-Fixed-Price construction contract utilizing a Best Value Tradeoff source selection process.
The Government is seeking qualified contractors with demonstrated experience performing inspection, repair, refurbishment, oil processing, testing, and return-to-service activities for large Class II oil-filled power transformers rated at or above 230 kV and 100 MVA. Experience performing similar work at hydroelectric generation facilities, utility substations, or comparable high-voltage industrial power facilities is highly desirable.
The work generally consists of furnishing all labor, supervision, equipment, materials, transportation, testing, engineering support, and incidental services necessary to inspect, repair, refurbish, test, and return to reliable operational service existing Generator Step-Up (GSU) power transformers.
The transformers are General Electric three-phase GSU transformers manufactured in 1973 with the following characteristics:
Voltage Rating: 230 kV Grounded Wye / 13.2 kV Delta
Capacity Rating: 208 MVA
Cooling Class: FOA
Insulating Oil Quantity: Approximately 14, 600 gallons
Transformer Type: Class II oil-filled power transformers
The project was developed following previous transformer failures and forensic investigations that identified deterioration and failure of high-voltage neutral conductor components. The repair effort is intended to restore transformer reliability and extend operational life.
The work includes, but is not limited to:
Internal inspection of existing transformers and preparation of detailed inspection and repair reports....
Notice ID: w9127n26ra017
Department/Ind. Agency: dept of defense
Sub-tier: dept of the army
Office: w071 endist portland
Product Service Code: z2md - repair or alteration of epg facilities - hydro
NAICS Code: 238210 - Electrical Contractors and Other Wiring Installation Contractors
Inactive Dates: aug 28, 2026
Inactive Policy: 15 days after response date
Documents
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