RFI - Denison Stations Service Generator Rehab
Closed Pre-Solicitation Posted
- Solicitation number
- W912BV25FTA06
- Agency
-
ENDIST Tulsa
US Army Corps of Engineers, Department of Defense
- Responses due
- Set-aside
- No set-aside
Opportunity facts
- NAICS code
- Not on record
- PSC
- Not on record
- Place of performance
- Denison, Texas 75020, United States
- Points of contact
Notice details come from SAM.gov. Updated .
About this opportunity
The U.S. Army Corps of Engineers Tulsa District is seeking sources to conduct a comprehensive rehabilitation and potential replacement of station service generator units at the Denison Powerhouse located on the Red River in Texas. The project involves addressing critical infrastructure for two 35,000 kilowatt units originally installed in 1945 and 1949, which currently provide auxiliary power and serve as mutual backup power sources. The rehabilitation scope encompasses extensive mechanical and electrical system upgrades, including inspection, repair, and potential replacement of components across multiple systems such as mechanical governors, generation equipment, turbines, controls, and protective relaying. The pre-solicitation notice indicates a Request for Information (RFI) process with detailed technical requirements, including comprehensive testing and commissioning plans for all proposed work. Potential contractors are expected to review the technical drawings and respond to strategic questions about project specifications, documentation needs, potential risks, and design priorities, with responses due by April 14, 2025.
The contract opportunity is currently designated with no specific set-aside classification, suggesting open competition for qualified contractors. The powerhouse generates an estimated average of 219,000 kilowatt-hours annually and has a rated overload generation capacity of 80,500 kW. The station service units have accumulated over 70 years of wear, including cavitation damage to turbine runners and wicker gates, which has compromised their reliability. While specific budget ranges are not explicitly stated in the pre-solicitation notice, the extensive scope of work suggests a significant investment in rehabilitating critical infrastructure. The project will require detailed technical expertise across mechanical systems, generation equipment, turbine components, control systems, and structural elements, with a primary objective of restoring and enhancing the reliability of these essential power generation support units.
Notice text
DENISON STATION SERVICE SCOPING LIST AND ASSUMPTIONS
SUMMARY SCOPE OF WORK
- The Denison Powerhouse is located on the Red River, five miles north of Denison, Texas. The project contains two 35,000 kilowatt (kW) units with a total rated generating capacity of 70,000 kW. The rated (overload) generation capacity is 80,500 kW. The powerhouse produces an estimated average annual energy amount of 219,000 kilowatt-hours. Unit 1 became operational in 1945 and Unit 2 became operational in 1949.
- The powerhouse has two original station service units which provide power for auxiliary equipment to operate the main units. There is no emergency generator, as the two station service units act as backup power sources for each other. The station service units have incurred over 70 years of wear, including normal cavitation damage to the turbine runners and wicker gates. Due to their deteriorated condition, the station service units are losing reliability.
- The Army Corps of Engineers is seeking sources to conduct rehabilitation and/or replacement of a wide range of components, as articulated below, associated with these Station Service units. The following systems will require any combination of inspection, repair, and/or replacement. Testing and commissioning plans will also be required.
MECHANICAL SYSTEMS
- Mechanical Governor
- Brake System
- Raw Water System
- Bearing Oil Systems
- Lifting devices for GSU disassembly
- Greasing System
- Scroll Case/ Draft Tube drain valves
- Butterfly Valve
GENERATION EQUIPMENT
- Excitation System
- Generator
TURBINES
- Runner
- Draft Tube Cone
- Wicket Gates & Operating Mechanism
- Stay Ring/Spiral Case
- Headcover/Operating Ring/Turbine Guide Bearing Housing
- Bottom Ring & Mounting Surface
- Operating Ring, Connecting Rods, and Rocker Arms
- Shafts
- Turbine Shaft Packing Box
- Wicket Gate Servomotor
- Turbine and Generator Guide Bearings
- Reassembly/Disassembly
CONTROLS
- All controls to be replaced.
- Various Temperature Meters/Gauges/Alarms required in Governor Cabinet or Instrumentation Boards
PROTECTION
- Station Service Unit Annunciation System
- Protective Relaying
STRUCTURES
- Minor repair/refurbishment to draft tube components.
Files
| File | Type | Posted |
|---|---|---|
| Denison SS Ref Dwgs.pdf | ||
| Industry RFI - Question .docx | DOCX document |
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