Wolf Creek GSU Transformer Replacement   6

REQUEST FOR INFORMATION

The Government is issuing this Sources Sought to determine a competitive basis for the procurement described. This is not a solicitation. No reimbursement will be made for any costs associated with providing information in response to this survey.

This survey is for market research purposes only. Only contractors capable of performing this type of work should respond to this Request for Information.

Requirement

The U.S. Army Corps of Engineers (USACE), Nashville District, anticipates a requirement for a firm fixed-price hybrid supply-construction contract for Wolf Creek, GSU Transformer Replacement. The estimated magnitude of this project is between $25,000,000.00 Not To Exceed (NTE) $49,000,000.00. The anticipated NAICS code for this requirement is 237990 Other Heavy and Civil Engineering Construction (size standard: $45.0 m). The anticipated PSC is Z2KA, Repair or Alteration of Dams.

The scope of the project is to replace ten (10) 13.8/161kV single phase Generator Step-up Unit (GSU) transformers at the Wolf Creek power plant. The single phase transformers will be replace with three (3) 3-phaser GSUs. As detailed in the plans and specifications the contractor will be responsible for:

The design, manufacture, testing, and delivery three new 3-phase GSU transformers with internal neutral CTs by the transformer manufacturer

Removal the existing surge arresters and retaining for installation on the new 3-phase transformers

Draining and disposal of the existing transformer oil

Removal and proper disposal of existing GSU transformers, and ancillary equipment, including spare transformer

Removal of existing 15kV tubular bus system, including the metering instrument transformers for each existing transformer

Removal of the existing 161kV conductors, and insulators for each existing transformer

Installation of the new 15kV tubular bus system, including metering instrument transformers for the new 3-phase transformers

Installation of the new 161kV conductors, and insulators on the new takeoff towers for the new 3-phase transformers

Installation of two new 480V AC power cabinets in the switchyard

Installation of new conduit and feeders to the new 480V AC power cabinets in the switchyard

Installation of new conduit and feeders from the new 480V AC power cabinets in the switchyard to the new transformer power cabinets

Installation of 125V DC wiring and conduit for control power, controls, and annunciation from the battery switchboard AS to each new transformer control cabinet

Installation of three new 3-phase GSU transformers on the new transformer foundations

Installation of the existing surge arresters onto the new 3-phase transformers

Repair of the existing ground grid around each transformers and surrounding area as needed

Modification of existing 161kV copper bus to accommodate the new three-phase transformers

Removal of existing structures including the rails, the 15kV tubular bus support structures and foundations, the transformer foundations, and the take-off towers and foundations

Survey

The Government is issuing this notice to determine a competitive basis. This is not a solicitation and the items listed herein are subject to change or eliminated from the requirement. This survey is for market research purposes only. Only Contractors capable of performing this type of work should respond to this Request for Information.

Your response to this survey is requested by 5:00 PM Central Time, December 21, 2023. Please send via email to Alison Abernathy at Alison.T.Abernathy@usace.army.mil