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This is a Sources Sought notice issued by the Department of Energy, Western Area Power Administration (WAPA), Desert Southwest Region for market research regarding a load tap changer (LTC) retrofit project at Headgate Rock Substation in La Paz County, Arizona.

The project requires a complete turnkey retrofit of a degraded McGraw Edison Power Transformer (Serial Number C-05324-5-1), including delivery of one new Reinhausen Manufacturing RMV-II-1320-15kV vacuum-type LTC with custom-engineered transition throat, one integrated ETOS® MD-IV control cabinet with digital smart monitor, one reactor-type tap-changer accessory set, and associated mechanical components including Westinghouse retrofit brackets, connection bars, and fasteners. The contractor must provide comprehensive field and engineering services on a 13-day continuous schedule, encompassing mobilization, pre-job briefing, equipment staging, pre-testing (Doble power factor, TTR, winding resistance, insulation resistance, oil analysis with multiple test methods), internal inspection, removal of the existing LTC, installation of new LTC via welding, control cabinet relocation, manhole re-gasking, pressure testing, dew point testing with maximum acceptable limit of 1%, vacuum and oil filling (48 hours at 1 Torr or less), final testing matching pre-testing protocols, and delivery of reports, test results, and as-built drawings.

The NAICS code is 335311 (Power, Distribution and Specialty Transformer Manufacturing, 800 employees). Interested parties must submit capability statements by 5:00 p.m. Eastern Time on Monday, July 13, 2026, to reyeswiltz@wapa.gov with the subject line "SOURCES SOUGHT." Responses must include company information, Unique Entity ID, current SAM registration, business size designation under NAICS code 237130 (including any SDB, 8(a), WOSB, EDWOSB, VOSB, SDVOSB, or HUBZone status), and detailed experience from the last five years on similar projects with project title, location, key features, firm role, completion date, contract value, and contracting agency. This is market research only; responses do not constitute a solicitation and do not obligate the government to award a contract. All offerors must maintain active SAM registration at www.sam.gov.

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SOURCES SOUGHT NOTICE – Headgate Rock Substation McGraw Edison Power

Transformer (Serial Number: C-05324-5-1) load tap changer (LTC) retrofit project

This is a sources sought announcement only: The Department of Energy (DOE), Western Area

Power Administration (WAPA), Desert Southwest (DSW) Region is seeking capability statements from all interested parties for the “Headgate Rock Substation McGraw Edison Power

Transformer (Serial Number: C-05324-5-1) load tap changer (LTC) retrofit project- a complete turnkey retrofit of the degraded, legacy oil-type LTC on the active McGraw Edison Power

Transformer (S/N: C-05324-5-1).

EQUIPMENT AND HARDWARE DELIVERABLES:

-One (1) new brand name Reinhausen Manufacturing RMV-II-1320-15kV vacuum-type

LTC complete with a custom-engineered transition throat to match the existing main tank interface.

-One (1) integrated ETOS® MD-IV (Embedded Transformer Operating System) control cabinet and digital smart monitor.

-One (1) Reactor-type tap-changer accessory set, including mounting supports, internal gasket stops, and an ANSI-compliant control cabinet.

-Associated mechanical components: Westinghouse retrofit oval bracket, connection bar

X0 bushing, P point connection bars, and specific structural fasteners (M12 Stover nuts, conical spring washers, and hex screws).

-Turnkey Field and Engineering Services (13-day continuous schedule):

SCOPE

Services to be provided by the contractor shall be performed at DSW’s Headgate Rock substation facility located in La Paz County, AZ.

Scope of Services shall include:

1. Mobilize crew and equipment to Headgate Rock Substation.

2. Perform pre-job brief to identify hazards and proper isolation, switching and grounding

3. Stage Equipment.

4. Perform pre-testing in as found tap position for baseline

a. Doble power factor overall, bushings, C1 and C2

b. TTR in all OLTC taps

c. Winding Resistance in all OLTC taps

d. Insulation Resistance (Megger)

e. Main and Core

f. Oil Analysis (Dielectric (D1816), Acid (D974), IFT (D971 or D2285), Color

(D1500), Visual (D1524), Water (D1533), PF (D924), and Dissolved Gas Analysis)

5. Perform Inspection of Unit

6. Identify Leaks

7. Drain main tank oil into the contractor’s supplied oil storage

8. Drain LTC oil into customer supplied drums or totes

a. Customer to dispose of waste oil and drums/totes

9. Perform an initial dew point (12hr, minimum measurement. Review results with

WAPA’s technical representative.

10. Perform an internal inspection of the transformer and LTC leads to determine “as is” condition and to identify any potential problems or issues.

11. Retrofit new Reinhausen Manufacturing RMV-II-1320-15kV LTC to transformer:

b. Identify, label, and disconnect all leads at LTC board

c. Remove existing LTC from main tank

i. WAPA to dispose of LTC mechanism, compartment, etc.

d. Install New RMV-II with transition throat to main tank via welding

e. Make lead extension connections from windings to LTC board as necessary.

Install any supports, clamps, spacers as necessary to maintain clearance.

f. Wrap Connections and verify clearances for required voltage level modification of existing leads, terminals, or flange.

12. Re-gasket all manholes accessed during project.

13. Relocation of control cabinet:

a. Determinate and remove items in the existing control cabinet

b. Label wiring for reconnection

c. Transfer components to new cabinet and terminate wiring

i. Customer to dispose of original cabinet

14. Clean up welds and repaint as needed

15. Seal unit and pressure test for leaks. All accessed manholes will be re-gasketed.

16. Perform dew point test to determine dryness of insulation

a. Max acceptable limit is 1%

b. If dewpoint exceed 1%, field dry out will be required

i. Associated cost of field dry-out will be at the expense of WAPA based on initial baseline dewpoint reading and final

17. Perform final vacuum and oil filling:

a. Vacuum 48 hours at 1 Torr or less

b. Perform Vacuum leak test

c. Fill unit with de-gas oil at 60deg C +/-5”, without exceeding 5Torr

i. Note: Additional charges for cold weather preheat are not included in quoted price and additional charges will apply.

d. Break Vacuum with dry air

18. Bleed all areas required

19. Perform final testing:

a. Doble power factor overall, bushings, C1 and C2

b. TTR in all OLTC taps

c. Winding Resistance in all OLTC taps

d. Insulation Resistance (Megger)

e. Main and Core

f. Oil Analysis (Dielectric (D1816), Acid (D974), IFT (D971 or D2285), Color

(D1500), Visual (D1524), Water (D1533), PF (D924), and Dissolved Gas Analysis)

g. Operational check of LTC controls

20. Review results with WAPA

21. Provide report, test results, as-built drawings and revised existing drawings

22. Clean area and prepare for demobilization of crew and equipment

The type of set-aside decision, if any, will depend upon the responses of interested parties to this

Sources Sought notice. The purpose of this notice is to determine the appropriate level of competition, and gain knowledge of the experience and qualifications of the industry members, including Other than Small (OTS), Small Business (SB), Small Disadvantaged Business (SDB), 8(a), Woman-owned (WOSB), Economically Disadvantaged Woman Owned Small Business

(EDWOSB), Veteran Owned-Small Business (VOSB), Service Disabled Veteran Owned Small

Business (SDVOSB), and Historically Underutilized Business Zone (HUBZone) firms.

This is for market research purposes only and the opportunity to respond does not constitute a solicitation and does not obligate the government in any contract award. The submission of any information is purely voluntary, and the government assumes no financial responsibility for any costs incurred in responding.

The North American Industry Classification System (NAICS) code for this procurement is

335311 Power, Distribution and Specialty Transformer Manufacturing 800 employees.

The purpose of this sources sought announcement is for market research to make appropriate acquisition decisions and to gain knowledge of potential qualified vendors interested and capable of/to meet the requirements in accordance with the following:

CAPABILITY STATEMENT

Interested sources shall submit a capability statement demonstrating their ability to perform the work as described above. Responses are requested with the following information:

1. Company Name, Unique Entity ID, Address, Description of Principal Business Activity, and

Primary Point of Contact (e-mail address and phone number).

2. Current SAM Registration and Business Size under NAICS Code 237130, to include any designations as SDB, 8(a), WOSB, EDWOSB, VOSB, EDVOSB, or HUBZone.

3. Experience – Provide a listing of relevant work performed in the last five (5) years on projects of similar scope and magnitude. Experience information must include project title, location, description of the key/salient features of the project to demonstrate relevance to the proposed project, firm’s role, completion date, total contract value, and name of agency or government entity for which the work was performed.

The Government is not obligated to, nor will it pay for or reimburse any costs associated with responding to this Sources Sought synopsis request. This notice shall not be construed as a commitment by the Government to issue a solicitation or ultimately award a contract, nor does it restrict the Government to a particular acquisition approach.

All offerors who provide goods or services to the United States Federal Government must have an active registration in the System for Award Management (SAM) at www.sam.gov http://www.sam.gov/

Responses to this Sources Sought must be in writing. Information is to be submitted by electronic delivery to reyeswiltz@wapa.gov with the subject line “SOURCES SOUGHT” and shall be received no later than 5:00pm eastern standard (ET) on Monday, July 13, 2026. After review of the responses to this announcement, the Government may proceed with the acquisition, and a subsequent solicitation may be published.

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