JD TRGR INDUSTRY SITE VISIT 10.20.2022 Q&A.pdf

JD TRGR INDUSTRY SITE VISIT MEETING THURSDAY 10/20/22

Industry Q&A

1. Will we be able to view a Generator at a pre‐solicitation site visit?

A. Unknown. It depends on what ongoing unit rehabs and maintenance is happening. It would be helpful for Contractors to indicate what they would like to see so the Gov can take photos if access if not available.

2. What is the time frame for the 95% review?

A. Current schedule is Feb through March 2023. One on one for Industry in March/April

2023.

3. Will Government provide maintenance record? Has there been challenges in disassembly of units.?

A. Government will not provide. Challenges in disassembly have mainly been in removing large studs/nuts at shaft/shaft and shaft/runner connections. The

Government intends to include some options to address destructive removal methods.

4. Will photos be restricted similarly at pre solicitation site visit? What about after award?

A. Need clarifications from Office of Counsel, TBD

5. Fretting or wear or dirt shown at top of generator shaft. Will there be scope for fretting or cleaning shaft?

A. This is covered in technical specs.

6. Will load handling devices be certified? What standard?

A. Below the hook lifting devices will be certified IAW ASME B30.20 before site work starts under this contract. This is covered in technical specs.

7. What construction platforms (scaffolding) will be provided by the Government? Are they certified? Will the Contractor be required to re‐certify during the period of performance?

A. This is covered in technical specs.

8. Site access work will be complete prior to the TRGR project construction?

A. Yes.

9. How will changes in centerline and runner diameter due to collaborative design be adjusted for final pricing/cost? Impacting concrete demolition/removal cost scope.

A. This will be addressed in the CLINs basis.

10. Requesting rotor pole drawings? Request drawing or photo of 2 rotor stands?

A. See Reference drawings volume 6. GE Drawing 95D229.

11. Are all sixteen units identical in terms of rotor windings or some have been refurbished?

A. All sixteen rotors have been rewound to the same rating. See technical specifications.

12. Request for draft tube drawings or scan?

A. This will be provided if they are available.

13. Will measurement or drawings for the bottom of the core between the baffle and the ‐‐‐ be made available?

A. This will be provided if they are available.

14. How many lifting devices will be reserved for TRGR?

A. Lifting devices will be made available for TRGR as required. See section 01 11 00.00

25, Paragraph 1.7.

15. High pressure lift system modification drawings?

A. Drawings have been provided in Volume of FIO drawings package.

16. Space available for laydown area of 2 units for disassembly and assembly?

A. Yes

17. What laydown and storage areas will be made available to support TRGR?

A. Laydown areas will be identified in the drawing package. Areas will include internal to the powerhouse (G‐010) and external (G‐006).

18. Can the tailrace be used for Conex and storage trailers?

A. It is unlikely the Government will permit staging on the tailrace due to clearance concerns with existing tailrace cranes. The Government will clearly indicate permitted laydown and staging areas in the solicitation.

19. Where is the OR, WA state line?

A. The state line bisects unit 15. The location of the line is indicated on the drawing G‐

001. May need further follow‐up on tax impacts and addressing location

20. What is the weight of the Pin for the intermediate head cover lifting device? Is there a lifting device for the pin?

A. Approximately 310 lb. No, there is not a lifting device for the pin.

21. Is there only one access point per scroll case? Can two people be in the scroll case elevator at once? What is scroll case elevator rating? Are they all the same? Do all units have the same sized hatch for scroll case access? Will there always be four elevators available or might the Government be to down to two?

a. Yes

b. Yes

c. 3,000 lbs.

d. Yes

e. Yes

f. Two scroll case elevators will be made available for exclusive contractor use at all times (Ref 01 11 00.00 25 Para 1.7)

22. What is the process for confined space rescue?

a. Contractor is responsible for this requirement in accordance with EM 385.

23. Access to the units, the door is small, fixed blade will not fit, what is the plan?

a. We expect the runners to be assembled inside the powerhouse. The existing powerhouse door cannot be modified in any way.

24. Is the cavitation damage on the unit 4 hub representative of what to expect on other units?

a. It is representative of what to expect on other blocked units, but the government provides no guarantee that conditions will not be worse. But there is no need to repair hubs for this project as they will be replaced

25. Are we keeping the same color scheme?

a. Yes, this is required for historical significance and ease of unit identification during maintenance

26. What other work will be underway concurrently with TRGR? Will the current contract for hub upgrades be extended or modified to extend into the TRGR timeframe?

a. The government anticipates that hub upgrade work will be completed prior to start of TRGR on‐site construction

b. Concurrent work is expected to be underway in the powerhouse during the duration of the TRGR contract. We will coordinate work to minimize conflicts to the extent practical.

27. Is there any stainless‐steel overlay welding in the discharge ring? Were there any repairs done?

a. Still verifying ‐ TBD

28. Will the Unit 7 generator rewind be included and what is the extent of the damage?

a. Potentially. Generator rewind will be included as an option independent of turbine replacement that may or may not be exercised. Unit 7 may be repaired by a separate contract prior to start of TRGR construction work

b. More information on the extent of the damage may be provided prior to advertisement. Further inspections are planned to assess damage.

29. Will the cranes need to be upgraded or rehabbed to support this work?

a. The Government is evaluating the bridge cranes and there may be some incremental upgrades/repairs performed prior to TRGR Construction Work.

However, the cranes were rehabilitated in 2011 and the Government does not anticipate performing another major rehab prior to TRGR.

30. How many units can we have out at the same time?

a. TRGR contractor can have 2 units out at one time (after unit AA).

b. There are enough sets of headgates and tail‐logs for standard powerhouse operations to continue while these two units are out to support TRGR

31. We listed 3 potential sizes for the new unit designs. Is there a chance that the final design will fall in‐between those options?

a. The design iteration diameters could change from the three diameters listed in the solicitation depending on the discharge ring diameter preliminary analyses, but no more than three diameters will be part of the iterative design process.

b. Payment for the final design will be adjusted for what is in the bid schedule

32. Can the centerline change, and if so, how will that be accounted for

a. Yes, it can change and we expect it to. Payment for the final design will be adjusted to what is in the bid schedule.

b. Demolition will be included as a unit price per volume.

33. Contractor participants expressed concerns regarding labor and material escalation.

Participants also expressed concern about the FAR 10% limitation on increases.

a. The Government responded that the 95% spec will include strategies to address labor and material escalation. Please review and comment.

34. Are you planning to release the evaluation criteria with the 95% review?

a. Draft evaluation criteria will be released for review and comment

35. Will this contract be competing with Grand Coulee for regional labor support?

a. The government has no knowledge or influence over this issue

36. Statement: If no competing projects in the region, then 5 months advertise period is adequate, if there are other big jobs going on, it won’t be enough time. (no direct question asked, answer will be in the solicitation, the concern has been noted)

37. What changes have been made to the package since the last review?

a. Mostly minor changes to the technical specs, but the commercial terms and general conditions will have been added or significantly updated.

38. Request for a 3D scan, would be helpful to provide needed measurements

a. Government will take this request into consideration

39. Is unit priority or sequencing written into the specs.

a. The Government will determine sequencing of units based on design outcomes and contemporary powerhouse conditions. IAW Spec 01.10.10. the Government will designate which unit will be upgraded and what type will be installed before the scheduled outage.

b. The Government anticipates alternating between adjustable and fixed blade units, but if desired or if units aren't completed within the designated outage duration it may be necessary to designate two units of the same type to be constructed consecutively.

40. Is it specified in the specs which units will be condensing units?

a. The current condensing units (11‐14) will remain as condensing units. They are called out in the specs (Spec 48 13 13.02 26 Para 3.3.4.).

41. What level of access will contractors have on the next site visit? Can a cooler be removed from slats for next site visit? Requesting access to generator, spare bars, laminators, parts?

a. TBD. We understand there is a desire for greater access, but safety requirements would apply. Make your wishes known for what you would like to see ahead of time.

42. Request for current operating specs for generator (loss specs)

a. All 16 windings were rewound between 1983 and 2000. We do not expect the rewound losses are different from the original losses. For this reason, we are using the original losses.

43. Request government to verify all available drawings are in the bid package?

a. The 95% review package will include all pertinent drawings

44. Request to have more spare bars and parts available for inspection next time.

a. The Government will take this request under consideration.

45. Does the Government have any support device for lower bearing bracket?

a. No

46. Can the lower bearing bracket be stacked on upper bearing bracket support device? Are the upper bearing bracket stands moveable?

a. No

b. Yes, the stands are moveable

47. Is the Government furnishing lifting devices for the turbine shaft and intermediate shaft?

a. GFE is in Specification Section 01 11 00.00 25 Paragraph 1.7.

48. Will temporary fall protection be available?

a. Existing Turbine Maintenance Platform(s) will be provided for Contractor installation in the draft tube. Other scaffolding and temporary fall protection equipment (anchorages, lifelines, etc) will not be provided.

49. Requesting Contracting Terms and conditions and DIV00 selection criteria as most useful for 95% Industry Review

A. See Basis for Award in 95% Industry Review

50. Request that Government does not mark entire solicitation CUI

A. Noted

51. Would Government consider having two spare stator cores?

A. There are no known stator core failures. It is very unlikely that two spare stator cores will be available.