TDA Transformer 9-11 Interim Repair Services

1. General.

This is a SOURCES SOUGHT and is for informational/market research purposes only. THIS IS NOT A REQUEST FOR PROPOSAL, QUOTATION, OR BID, NOR A SYNOPSIS OF A PROPOSED CONTRACT ACTION UNDER FAR SUBPART 5.2. This Sources Sought is to gain knowledge of the interest, capabilities, and qualifications of industry so the government can make informed business decisions. We are seeking responses from both large and small business members of industry to include Small Business, Small Disadvantaged Businesses to include 8(a) firms, Historically Underutilized Business Zones (HUBZone), Woman-Owned Small Business (WOSB) to include Economically Disadvantaged Women-Owned Small Business (EDWOSB), Service-Disabled Veteran-Owned Small business (SDVOSB) and Veteran Owned Small Business (VOSB). All interested parties are highly encouraged to respond. This notice is issued in accordance with FAR Part 10, Market Research, to assist the Government in determining an appropriate acquisition strategy, including potential small business set aside considerations. Responses to this Sources Sought announcement will be used by the Government to make business decisions and to inform potential future solicitations. The Government is specifically seeking firms with demonstrated experience in large power transformer refurbishment and hydroelectric or utility infrastructure projects of similar size, scope, and complexity. The North American Industrial Code (NAICS) for this requirement is: 335311 - Power, Distribution, and Specialty Transformer Manufacturing The related size standard is: 800 employees. Formal Sources Sought Response Due –

18 MAY 2026 at 3:00 pm PDT. 2. Project

Background. The U.S. Army Corps of Engineers (USACE), Portland District, is conducting market research to identify capable contractors for the inspection, repair, refurbishment, testing, and commissioning of Generator Step-Up (GSU) transformers at The Dalles Dam in The Dalles, Oregon. The project involves repair of failed Transformer T10 and preventative maintenance and refurbishment activities for Transformer T9, with an optional repair and refurbishment effort for Transformer T11. These transformers are identical 230,000/132,790–13,200 volt, 233,000 kVA, FOA cooled, three phase transformers manufactured in 1972. Transformer T10 experienced a failure associated with the high-voltage neutral conductor design. A similar failure occurred previously on Transformer T8 in 2016. The Government is seeking qualified firms with demonstrated experience performing inspection, repair, refurbishment, testing, and commissioning of large Class II oil-filled power transformers rated greater than or equal to 230kV and 100 MVA. 3. Project Scope. The contemplated contract will provide all labor, supervision, materials, equipment, transportation, testing, engineering support, and incidentals necessary to inspect, repair, refurbish, test, and commission GSU transformers T9 and T10, with optional work associated with Transformer T11, at The Dalles Dam. The contractor may propose either onsite repair activities or transportation of transformers to an offsite repair facility, subject to Government approval. a. Work may include, but is not limited to: • Internal transformer inspections • Inspection and analysis of transformer winding damage, burns, discoloration, deposits, and conductor failures • Removal and replacement/repair of internal transformer conductors • Removal and installation of high-voltage and low-voltage bushings • Removal and installation of transformer-mounted devices • Replacement of gaskets and seals • Transformer oil draining, containment, temporary storage, disposal, vacuum processing, and hot-oil filling • Transformer electrical testing and oil testing • Sweep Frequency Response Analysis (SFRA) • Winding insulation resistance and power factor testing • Winding resistance testing • Turns ratio testing • Leakage reactance testing • Optional replacement of transformer cooling system isolation valves • Removal and disposal of asbestos-containing materials associated with transformer components. b. Anticipated Construction Schedule: USACE Portland District currently anticipates issuance of a solicitation in FY26 with contract awarded in FY27. The estimated

period of performance is anticipated to extend through calendar year 2029. c. Estimated Construction Cost (ECC): The current estimated construction magnitude is between $1,000,000 and $5,000,000 in accordance with FAR 36.204 and DFARS 236.204. d. Number and Type of Contracts: NWP contemplates awarding one (1) Firm-Fixed-Price (FFP) Construction Contract. The acquisition strategy decision has not yet been determined. Maximum small business participation is being sought at both the prime and subcontracting levels. e. Anticipated Source Selection Process: The expected method to determine the best value to the government is Best Value Tradeoff. f. The current anticipated CLIN structure is as follows: CLIN Type 0001 Mobilization and Demobilization Base 0002 Transformer 10 Repair Base 0003 Transformer 10 Testing and Commissioning Base 0004 Transformer 9 Repair Base 0005 Transformer 9 Testing and Commissioning Base 0006 Concrete Slot Covers Base 0007 Removal and Disposal of Asbestos Containing Materials Base 0008 Transformer 11 Repair Optional 0009 Transformer 11 Testing and Commissioning Optional 0010 Removal and Disposal of Asbestos Containing Materials Optional 0011 Valve Replacement Optional g. Optional CLINs are not currently funded and may be exercised by future contract modification 4. Project Specific Constraints and Challenges: Interested firms should consider the following anticipated project constraints and challenges: • Restricted access and operational constraints associated with work at an active hydroelectric facility • Coordination with powerhouse operational

requirements • Specialized labor and equipment