36E77618R0102_0006.docx

Government Response to Technical Questions Received – Biloxi

5. PROJECT NUMBER (if applicable)

CODE

7. ADMINISTERED BY

2. AMENDMENT/MODIFICATION NUMBER

CODE

6. ISSUED BY

8. NAME AND ADDRESS OF CONTRACTOR

4. REQUISITION/PURCHASE REQ. NUMBER

3. EFFECTIVE DATE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED

PAGE OF PAGES

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED

BPA NO.

1. CONTRACT ID CODE

FACILITY CODE

CODE

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

E. IMPORTANT:

is extended,

(a) By completing Items 8 and 15, and returning __________ copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY is not extended.

12. ACCOUNTING AND APPROPRIATION DATA

(REV. 11/2016)

is required to sign this document and return ___________ copies to the issuing office.

is not, A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

15C. DATE SIGNED

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER

Contractor

16C. DATE SIGNED

14. DESCRIPTION OF AMENDMENT/MODIFICATION

16B. UNITED STATES OF AMERICA

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER

16A. NAME AND TITLE OF CONTRACTING OFFICER

15B. CONTRACTOR/OFFEROR

STANDARD FORM 30

PREVIOUS EDITION NOT USABLE

Prescribed by GSA - FAR (48 CFR) 53.243 (Type or print) (Type or print) (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

(Number, street, county, State and ZIP Code) (If other than Item 6) (Specify type of modification and authority) (such as changes in paying office, appropriation date, etc.)

(If required)

(SEE ITEM 11)

(SEE ITEM 13)

(X)

CHECK

ONE

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

(Signature of person authorized to sign) (Signature of Contracting Officer) 12-19-2018 520-15-130

PCAC

Department of Veterans Affairs Program Contracting Activity Central 6150 Oak Tree Blvd, Suite 300 Independence

OH

44131

PCAC

Department of Veterans Affairs Program Contracting Activity Central 6150 Oak Tree Blvd, Suite 300 Independence

OH

44131 To all Offerors/Bidders

36E77618R0102 09-05-2018

X X X

January 08, 2019 / 1:00pm EST.

X

ONE (1)

See Attached Documents - Government Response to Technical Questions

The close date for this solicitation has been extended to: January 08, 2019 @ 1:00pm EST.

Carlton Moreland Contracting Officer

1. Please confirm that the subcontractor will be allowed to fence off site 1, the parking lot to allow for construction and material lay down area.

Yes, area to be fenced off

2. Is this project subject to National Electrical Code 2014 standards?

Yes

3. Please provide the most current topographical survey of parking lot, site 1.

Attached drawings

4. Please provide the most current geotechnical report of parking lot, site 1.

Attached drawings

5. Please provide the most current underground utilities maps of parking lot, site 1.

Attached, storm, electrical etc.

6. Please provide the most current electrical systems maps of parking lot, site 1.

Attached drawings

7. Please include a description and photographs of the physical equipment (if any) where the interconnection is to be connected at each of the potential solar array sites.

Attached drawings

8. Please provide the specification of the existing monitoring system that the contractor is tying into. Tie-into existing DRAKKER monitoring service, contact Siemens rep Troy Abel, troy.abell@siemens.com

9. Document 36E77618R0102-014, bottom of page 1 states “The carports are to be double cantilevered steel framed structures and have a metal standing seam roof. The solar module arrays will attach to the metal standing seams using a conventional rail system.” While document 36E77618R0102-013, page 6 CLIN 001, states “The carports are to be double cantilevered steel frame structures and rail supported modules (i.e. the solar module arrays will attach to rail supports rated for 140 mph winds and NOT a metal standing seam type roof).”. Please clarify this discrepancy.

The carports are to be double cantilevered steel framed structures and have a metal standing seam roof. The solar module arrays will attach to the metal standing seams using a conventional rail system meeting the 140 mph winds. B-14 has existing standing seam metal roof.

10. While at the site visit the contractors, COR and CO discussed pushing the due date to January 10th. Please confirm that this is accurate.

The solicitation due date has been extended to Tuesday, January 08th, 2019 at 1:00pm EST.

11. While at the site visit there was some confusion on the system size for the parking canopies. Does the Biloxi VAMC want 1MW DC worth of solar capacity or are they looking for 1MWhr worth of solar production?

No change has been made to the project scope to increase output, project to meet the spec requirement total of 592.5 kw.

12. Does the contractor need to demolish the traffic islands at site 1 in addition to the removal of tree stumps and roots?

Up to design to be submitted and approval process.

13. Please provide the structural drawings for Building 14 so the contractor can better determine the conduit route to the point of interconnection.

Attached, AE-321

14. Please provide soils report that was used for the parking garage.

Attached (adjacent building)

15. Is there a tree replacement policy for the Biloxi campus?

No

16. Will the VA consider using a 1000 Volt system which is industry standard at this time?

Provide 600 Volt system as specified

17. Will the VA provide as-built electrical drawings for the parking garage?

Attached

18. Will the VA consider an extension to the proposal due date of January 15, 2019?

The solicitation due date has been extended to Tuesday, January 08th, 2019 at 1:00pm EST.

19. What is the total amount of DC power that the site is anticipating?

Per specs, total of 592.5 kw.

20. Based on the project being a design-build, do all CLINs need to be proposed if total power can be accomplished at one site?

Yes – All CLINS need to be proposed

21. Please provide as-built drawings for the vehicle charging station concrete pad.

Plan to install new footing this area

22. Please provide electrical as-built drawings for Building 14.

Attached drawings

23. Is the total amount of power being requested in DC or kW hours?

550 kW of power (DC Wattage), 2.5 kW of power (DC Wattage) and 40 kW of power (DC Wattage), total of 592.5 kw

24. There will be no restrictions on the parking lot and the contractor will have full access to the parking lot during construction.

Correct.

25. Please provide electrical as builts for the parking garage and the transformer.

Attached drawings

26. Please provide the soils report for the parking deck and any other nearby areas.

Attached drawings

27. Please provide any as-built underground utility drawings for the parking lot.

Attached drawings - electrical and storm

28. Please provide location and type of security cameras that surveil the parking lot. Please provide the name of the current security system we will tie into.

Drawings show locations, Siemens is currently installing, contact Siemens rep Troy Abel, troy.abell@siemens.com.

29. Section 00 11 21 page 3 calls for 4 duplex 120 volt outlets at each end of each carport array. Please verify this requirement. This has been deleted in the past, or reduced to one duplex at one end of each canopy. (cost savings) Maintain as shown.

30. Please provide the one-line electrical diagrams for building 14.

Attached

31. If bldg. 14 electrical system can support PV connection to an existing panel, can we connect inside the bldg. vice connecting to the ground transformer? (significant cost savings) Separate MV connections for solar PV systems are preferred. The facility prefers that meters be located inside of electrical rooms although there may be some utility interconnection requirements that we are not currently aware of. All metering must be compatible with (and preferably tie back to) the Schneider/Square D Ion system.

32. Please verify the KW DC required for each CLIM.

Total of 592.5 kw.

33. If we can meet the KW DC required at site 1 with less carports, is that acceptable or desirable?

Not acceptable nor desirable

34. For the advanced utility metering system, provide the nearest existing connection point to sites 1, 2, and 3.

Separate MV connections for solar PV systems are preferred. The facility prefers that meters be located inside of electrical rooms although there may be some utility interconnection requirements that we are not currently aware of. All metering must be compatible with (and preferably tie back to) the Schneider/Square D Ion system.

35. The scope of work requires our system to integrate with Siemens Desigo management system, please provide the local Siemens rep administering your system Contact Siemens rep Troy Abel, troy.abell@siemens.com

36. As discussed, we request you move the date the proposal is due to 1/10/2019. This will allow time for suppliers and subcontractors the time to provide competitive pricing for the project.

The solicitation due date has been extended to Tuesday, January 08th, 2019 at 1:00pm EST.

37. The solicitation calls for the Contractor to include a draft Quality control plan in the technical package. There is a 30-page limit for the technical proposal. QC plans by themselves exceed 30 pages. Can we provide a summary of the QC procedures in the technical proposal instead of the full plan? It was suggested to include a hyperlink to the plan. The draft QC plan could be provided as a separate file.

Providing QC plan attached is acceptable, BUT provide summary of the 30-page requirement

38. The solicitation calls for monthly aerial photographs. With the parking deck next door, can we provide overhead shots from the top of the parking deck?

YES

39. Campus electrical distribution system layout and riser diagram.

Attached drawings

40. Site 1 - Electrical riser diagrams and indication of switchgear point(s) of interconnection of the solar PV system by Bldg. 28 Drawings attached. Separate MV connections for solar PV systems are preferred. The facility prefers that meters be located inside of electrical rooms although there may be some utility interconnection requirements that we are not currently aware of. All metering must be compatible with (and preferably tie back to) the Schneider/Square D Ion system. Same for #3 and #4.

41. Site 3 - Electrical riser diagrams and indication of switchgear point(s) of interconnection of the solar PV system for Bldg. 14 Drawings attached. Separate MV connections for solar PV systems are preferred. The facility prefers that meters be located inside of electrical rooms although there may be some utility interconnection requirements that we are not currently aware of. All metering must be compatible with (and preferably tie back to) the Schneider/Square D Ion system.

42. Site 2 -Electrical riser-diagrams and indication of switchgear point(s) of interconnection of the solar PV and charging stations system by Bldg. 25 Drawings attached. Separate MV connections for solar PV systems are preferred. The facility prefers that meters be located inside of electrical rooms although there may be some utility interconnection requirements that we are not currently aware of. All metering must be compatible with (and preferably tie back to) the Schneider/Square D Ion system.

43. Bldg. 14 type of standing seam roof and age Attached drawings – 22 G

44. Are penetrations allowed for securing the racking system?

Yes

45. Who holds the roof warranty if any?

None

46. Canopy minimum clearance height, i.e. height from ground to bottom of canopy structure Per bid item CLIN 001: Base Item – Site One item 8’6”

47. Provide soil boring, geotechnical report Attached drawings

48. Provide as-built existing underground utilities for Site 1 and Site 2 Attached drawings

49. Are the Electric scooter chargers for the charging station responsibility of the contractor?

No

50. Is there a requirement of either utilizing CENTRAL INVERTER(S), STRING INVERTERS or MICRO INVERTERS?

SPEC SECTION 481400, 2.7 DC-AC INVERTER

A. Shall have stand-alone, utility-interactive, or combined capabilities.

B. Shall be listed to UL 1741, per IRC M2302.4.

C. Shall comply with IEEE 519 and IEEE 1547.

D. Shall be listed per FCC Part 15 Class A (commercial) or Class B (residential): Unintended radiators.

E. Shall include maximum power point tracking (MPPT) features.

F. Shall include anti-islanding protection if paralleling arrangement is required.

G. Shall have a permanent label that keys it to the specific combiner box that feeds the inverter with AC power.

51. Are Korean made solar panels allowed?

Must meet specification section 2.4 52.225-10 NOTICE OF BUY AMERICAN REQUIREMENT—CONSTRUCTION MATERIALS (MAY 2014)

52. Any restriction to the type of canopy steel structure: I-beam only or can truss type beams be used?

The carports are to be double cantilevered steel framed structures and have a metal standing seam roof. The solar module arrays will attach to the metal standing seams using a conventional rail system meeting the 140 mph winds. B-14 has existing standing seam metal roof. No trusses

53. Specify type of paint finished in white of canopy structures.

See specifications

54. Are new 120v electrical outlets required to be installed on the canopy columns’, if so how many? Section 00 11 21 page 3 calls for 4 duplexes 120-volt outlets at each end of each carport array. Maintain as shown

55. Will there be any SHPO permitting and approval requirements for this project?

No