Sol_140P1221Q0027_Amd_0003.pdf

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140P1221Q0027 x x

1 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 ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY 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.

x

PIL

Lakewood CO 80228 12795 W Alameda Parkway NPS, IMR - Lakewood MABO

03/08/20210003

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

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: (a) By completing

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

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

03/08/2021

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

BLCA - Install photovoltaic power system to provide 24 hour a day 7 days per week electrical service to Black Canyon National Park Microwave Link Station.

The purpose of this amendment is to respond to questions and provide a comment on site visit conditions.

Email all questions to Marcia_fox@nps.gov and casey_hagaman@nps.gov before the site visit.

Q&A

Q1. How many PTP700 modules need to be powered?

A1. There will be three (3) of the PTP700 devices at the site, initially, with the

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16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Marcia Fox

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

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

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

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140P1221Q0027/0003 possibility of 2 more in the future

Q2. Is the contractor only responsible for powering the PTP700?

A2. Yes, this solar system will be used exclusively to power the PTP7000

Q3. Is the contractor responsible for installing the PTP700?

A3. No, the SOW says nothing about the contractor installing the PTP7000. This has already been purchased and is on-site. This will be installed separately through a different contract that has already been awarded. This is scheduled for the week of May 10 and should be in place before this contract begins. NTP would be issued after this phase is completed. This contract is for installation of the solar power system only.

Q4. Are there any other components that require power for this system?

A4. See #1. This system will exclusively power the microwave link and nothing else will be powered by the system.

Q5. Are there any soil or geotechnical reports for the solar racking system?

A5. There are no geo-technical reports available for the site. Soil conditions are generally stable with some rock expected to be encountered.

This is not expected to be extensive since excavation for the racking should be relatively minimal

Q6. What is the total wattage or kW load of equipment to be powered?

A6. 35kw continuous draw per device. 3 devices with possibility of 2 more in the future

Q7. What is the typical maximum ground snow depth at the site?

A7. Maximum depth is normally 18-24" in that area.

Q8, Can you provide a plan set for Radio

Installation?

A8. This has been requested from the NPS Regional

Radio Coordinator. If it can be provided, it will be forward to the Contracting Officer Marcia

Fox for distribution to offerors

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Sponsored by GSA

FAR (48 CFR) 53.110

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140P1221Q0027/0003

Q9. Who will do Radio Installation?

A9. Can we coordinate with them? Radio installation is being provided jointly through another contract and through the NPS Regional

Radio Coordinator. Coordination is possible.

Q10. What is the typical load of the Radio?

A10. Devices are 35 watt continuous draw, per device; we will start with 3 devices so 105 watts continuous power draw, then possibly add 2 more for a total of 175 watts of continuous draw.

Q11. Will the auxiliary attachment be utilized with the Radio?

A11. There will be no auxiliary attachment used

Q12. What power supply will be used for the

Radio?

A12. All devices will use AC power supplies, so conversion of solar DC to AC so we can connect to a 3-prong AC outlet.

Q13. How many days of battery autonomy are required?

A13. This system requires reliable 24-7 operation so long outages are not acceptable. Batteries should be able to power the system for a minimum of 3 days without solar charging.

Q14. How many Radios will be utilized?

A14. There will be 3 radios with the possibility of expansion of two more radios in the future

Q15. Is there a need for future use of a generator?

A15. No, there are currently no need and no plans for the use of a generator in the future

Q16. Will there be a building or equipment shed provided as part of the radio installation?

A16. The radio equipment will be housed in its own equipment shed. This is already purchased and in storage at the Park Maintenance Complex.

The shed and all radio equipment will be installed the week of May 10 by a separate contract that has already been awarded. NTP for this project would be after this install is completed. The NPS will perform brushing and tree trimming ensure access to the site for all

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140P1221Q0027/0003 necessary vehicles, supplies and equipment prior to both contracts.

Q17. If so, would this space be heated, and how?

A17. It is not necessary for this space to be heated and it will not be heated

Q18. Page 2, #1B ¿ Contractor needs to be licensed through NABCEP to perform installation.

Is NABCEP certified inspector acceptable as onsite PM and commissioning, installers not being

NABCEP certified.:

A18. The design and commissioning must be completed by a NABCEP professional.

Q19. Page 4 Section 5 ¿ Will UL Listed components not manufactured in USA be considered?

A19. For UL, it doesn¿t matter, however this contract may require Made in America

Q20. Page 4, Section 5 ¿ Is NABCEP licensed inspector acceptable in lieu of installer?

A20. See #1, the critical parts are the design and commissioning. MUST be completed by NABCEP professional.

Q21. What version of NEC code is required.

Specifies recent/current version?

A21. The current code accepted in Colorado.

National Electrical Manufacturers Association, the Colorado State Electrical Board recently updated Rule 1.2 of its Code of Regulations, which includes adoption of the 2020 National

Electrical Code with no amendments. It became effective on August 1, 2020.

Q22. Estimated snow depth at site.

A22. Currently, the snow depth is right around 10 inches (and melting). Historically Black Canyon receives several feet of snow each winter.

Typical depths at the site will be between 1 and

2 feet.

Q23. Any remote monitoring capabilities, snmpV3 compliance for Government networks?

A23. At this time there is no requirement for remote monitoring

Q24. Any N+1 redundancy requirement?

A24. Some level of redundancy is required. The

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140P1221Q0027/0003 park needs 24/7 reliability for the system since it will be powering the park¿s only source of internet connectivity. This is critical to park operations so extended outages are not acceptable

Q25. Any future expansion requirements?

A25. There are currently no plans for expansion in the future at this location.

Q26. Confirm qty (1) PTP microwave radio, 70watts continuous load.

A26. Per the design specifications, 70 watts is the total final load. Please compensate for any other variables such as voltage drop in cables, loss of efficiency over the life span etc.

Q27. Any other site development tasks, tower or fencing requirements?

A27. Any security issues, PV module locking hardware, cabinet locks, theft prevention requirements? There are no other site development tasks planned with this contract. These will be addressed by the park separately.

Q28. What is the PTP radio antenna height?

A28. There will be 3 staggered antennas in total ranging in height from 10 feet to 20 feet

Q29. Are PE stamps required for foundations / racking / electrical?

A29. For foundations and racking, load requirements are not expected to be excessive for a system of this size and function. PE stamps would not be required. For the electrical, a PE

Stamp will be required on any voltage exceeding

120 Volts. We don¿t anticipate this on this system, so a PE Electrical Stamp will not be required. The power level will not generate sufficient power to have DC Arc Flash. Low power, low risk.

Q30. Ground test requirements ¿ what test is preferred and to what limit?

A30. Grounding shall conform to the NEC article

250. The three point (fall of potential, IEEE81) method is preferred. However, other methods are acceptable. The final methodology should be presented to the construction manager for acceptance.

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Q31. Preference on AC or DC Coupled solution?

A31. Per NPS IT staff, they prefer the load to be an AC source. How this is developed is per the site design.

Q32. Preferred site footprint?

A32. Since this is within a National Park, it is preferred that the system footprint be kept as small and inconspicuous as possible. The park does not have a preferred footprint per se.

However, the footprint should be kept to the minimum size possible while still including all necessary components and equipment.

Q33. Any preferred battery technology or life expectancy requirements?

A33. The NPS is looking for a balance between economics and life span. We would prefer the bidder to present an economic and life span case and we will evaluate this.

No other changes

Pre-Quote Site Visit:

site visit date 4/12 at 1 pm meet Casey Hagaman 970-641-2337 x 224, casey_hagaman@nps.gov at the South Rim Fee Booth area

ATTENDEES MUST EMAIL CASEY IF YOU WILL BE

ATTENDING THE SITE VISIT SO THAT HE CAN PLAN

ACCORDINGLY WITH COVID RESTRICTIONS

****************** The ground is not completely clear and visitors will probably want to wear boots as they might be walking in a few inches of snow for about 1/2 miles.************************

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