Scope.pdf

SCOPE OF WORK

Solar Power for Seed Storage Infrastructure at Desert Research Learning Center

The contractor shall provide the materials and installation services for a grid-tied photovoltaic solar panel system to offset energy cost for the seed storage infrastructure at the National Park Service

Desert Research Learning Center in Tucson, AZ. The solar energy system is expected to offset 60% of current electrical usage and account for increased usage resulting from a newly installed seed storage cooler.

TASK 1. Install grid-tied photovoltaic solar power system

Performance includes:

• Procurement and installation of a complete 20.88 kW DC photovoltaic system using 48 Q

Cells Tron 435-watt modules or equivalent.

• Installation of 24 APSystems DS3-L grid-tied inverters or equivalent.

• Integration of APsystems EMA monitoring system or equivalent.

• Installation of S-51 Clamps or equivalent.

• Installation of all required conduits, wiring, disconnects, and overcurrent protection devices.

• Procurement of engineering stamps, construction plans, and necessary permits from Pima

County Development Services.

• Coordination and scheduling of required inspections with Tucson Electric Power (TEP) and

Pima County.

• The contractor shall provide a minimum 10-year labor warranty covering workmanship and installation, as well as a 5-year power-production guarantee.

SITE DETAILS

Panel Placement: Fire Building

Placement of the panels is on the roof of the Fire building on the northeast side of the property (32.22322204901659, -110.72241511335379). A photo of the building is below to show rooftop structure:

The aerial photo below shows potential placement of the panels on the roof:

The utility company provided the following information on the building’s transformer which is more than enough capacity to accommodate the proposed design:

METER: 154610895

XFRMR: HLK 13 – 50kVA 1-phase 120/240V

Appendix A includes photos of the building’s electrical service entrance, including the product label and specifications. The service entrance is on the north side of the building, Location Address:

Desert Research Learning Center, 12661 E. Broadway Blvd, Tucson, AZ 85748

Site Access:

For accessing the site when delivering equipment, the contractor should use the gate on the southwest side of the facility on Broadway Blvd. Then the driver will travel straight to the north parking lot to the Fire building (circled in orange in the map below). The road and parking lot are a well-graded gravel surface. The area has been accessed by semi-trailer trucks in the past but requires careful maneuvering and a competent driver.

Execution Plan:

The contractor shall ensure the following execution procedures and standards are met:

1. Site Preparation and Access Control:

Confirm safe access to the rooftop and demarcate all work areas with temporary safety barriers per ANSI/ASSE A10.34.

Comply with OSHA 29 CFR 1926 Subpart M for fall protection throughout rooftop operations.

2. Equipment Staging and Handling:

Store all PV panels, inverters, and racking in designated staging areas to prevent damage and exposure to the elements.

Handling of solar modules shall conform to ANSI/UL 1703 standards and manufacturer recommendations.

3. Electrical Integration and Mounting:

Install racking system anchored per manufacturer’s guidelines and the latest revision of the International Building Code (IBC).

Coordinate electrical connections to ensure NEC 2023 compliance (Articles 690, 705) for

PV system wiring and interconnection.

Ensure all equipment is grounded per NEC and IEEE 1100-2021 guidelines.

4. System Commissioning and Monitoring Setup:

Perform system performance testing and commissioning in accordance with ANSI/NECA

90 and NABCEP commissioning guidelines.

Configure and test APsystems EMA data monitoring for real-time system output tracking and reporting.

The Government will provide a reliable high-speed internet connection to support the real-time monitoring system. The contractor shall coordinate with NPS IT or designated personnel to confirm connectivity requirements for the APsystems EMA system.

5. Safety and Environmental Compliance:

Submit an OSHA-compliant Accident Prevention Plan including Job Hazard Analysis

(JHA) prior to site mobilization.

Use low-impact installation methods to preserve the surrounding park environment in compliance with NPS and ABA accessibility guidelines.

Ensure proper disposal and recycling of packaging materials and jobsite waste per EPA guidelines.

6. Inspection and Documentation:

Coordinate all inspections with Pima County and TEP, ensuring inspection reports are submitted to the COR within 48 hours of receipt.

Provide photo documentation of installation phases (before, during, and after) with descriptions, per Section 3.9 of the Division 1 template.

7. Training and Turnover:

Provide on-site training session for NPS staff on system monitoring and basic maintenance.

Deliver complete documentation package including as-built drawings, warranty certificates, O&M manuals, and system specifications.

Contractor shall include all applicable warranty certificates, including product, labor, and performance guarantees, in the documentation package. These shall clearly define claim procedures and contacts for warranty enforcement.

8. Warranty:

The contractor shall provide:

i. A labor warranty covering installation workmanship.

ii. A warranty on solar panels and a warranty on microinverters.

iii. All warranties shall be submitted to the COR.

QUALITY STANDARDS: The solar panels and associated systems shall be provided as stated in the

Scope of Services above and be undamaged, with all parts in excellent working condition.

PERIOD OF PERFORMANCE: The period of performance for this requirement is six (6) months from date of contract award.

WORK HOURS: Work may be performed Monday through Friday between the hours of 7:00 AM and 5:00 PM unless alternate hours are approved by the Contracting

Officer (CO). Any requests to work outside of normal working days and hours shall be submitted to the CO and COR at least three (3) business days before the requested event for authorization.

PLACE OF PERFORMANCE: National Park Service Desert Research Learning Center, Tucson, AZ 85748.

APPENDIX A. Photos of the Electrical Service Entrance on the North Side of the Fire

Building, Including Specification Label