Attachment_1_-_Statement_of_Work_(SOW)_and_Technical_Specifications_for_Lake_Site_Photovoltaic_Arrays.pdf

STATEMENT OF WORK (SOW) AND TECHNICAL SPECIFICATIONS

FOR

LAKE SITE PHOTOVOLTAIC ARRAYS

AT

BLM’S BUTTE FIELD OFFICE

JANUARY 2024

I. DESCRIPTION OF SERVICES

Work effort consists of furnishing materials, labor, and equipment necessary for the installation of four grid-direct photovoltaic systems within the BLM’s Butte Field Office, located in Lewis and Clark County, MT. This contract is for a complete turnkey project including system design, permitting, and coordination with utility provider, in addition to all materials, equipment and labor necessary for installation of the systems. The Contractor will be required to provide documentation showing the photovoltaic systems generation capacity as follows:

• Devil’s Elbow Campground: 25,000 kWh annually

• Holter Lake Campground: 10,000 kWh annually

• White Sandy Campground: 11,000 kWh annually

• Log Gulch Campground: 11,000 kWh annually

The arrays shall be located on the roof of an existing structure where feasible. Ground mounted arrays will be allowed if roofs are not adequate for loads or generation capacity. These locations shall be identified by the BLM prior to installation. Final work product shall be in conformance with all requirements found in this SOW.

A. Place of Performance: Locations – BLM Recreation Sites

• Devil’s Elbow Campground, 5988 York Rd, Helena, MT 59602

• Holter Lake Campground, 1380 Beartooth Rd, Wolf Creek, MT 59648

• White Sandy Campground, 6563 Hauser Dam Rd, Helena, MT 59602

• Log Gulch Campground, 2205 Beartooth Rd, Wolf Creek, MT 59648

B. Bidder Requirements: Bidder must have a registered and active account in the System of

Award Management (SAM) and be licensed through NABCEP PVIP to perform photovoltaic installation in the state of Montana. A pre-bid meeting will be held on site prior to award.

Bidder attendance is highly encouraged. Contractor questions and answers from the meeting will be attached to the final solicitation.

C. Site Conditions: The work is located in recreation areas accessed by maintained roads.

Power, water, and restrooms are provided on-site. Contractor personnel may camp in the vicinity of the project free of charge when actively working on the site. Arrangements should be coordinated at least 10 calendar days in advance with BLM personnel. All vehicles and equipment shall be confined to previously disturbed areas.

D. Period of Performance: Performance time for this task order is 180 calendar days from the date “Notice to Proceed” is awarded. Once the work is started, the Contractor is expected to proceed with the work in a continuous and diligent manner until the work is complete. Days of work are limited to Monday – Friday (Excluding Federal holidays) between the hours of 7:00 AM and 6:00 PM, unless otherwise arranged in advance with the Contracting Officer.

• On-Site Investigation / Scoping Meeting (10 calendar days into performance):

Initiate and conduct an on-site investigation and meeting with the BLM. The purpose of the meeting is to preview the site, interview the client on overall expectations for the site, and generally discuss plans for the design effort.

• Conceptual Site Design and Detailed Design Development of Site Elements (20 calendar days into performance): Provide electronic copy of Conceptual Design documents for Government review. Be prepared for a conference call meeting to discuss project with utility provider (NW Energy). Include the following:

o Additional information request, if needed o Conceptual Design Drawings with site plan including overall dimensions o Detailed specifications on photovoltaic array, inverter type, and mounting system

E. Technical Requirements: See section III

II. GENERAL INFORMATION

1. PAYMENT

A. Bid price shall be one (1) lump sum amount that includes the cost of all labor, equipment, & materials required to perform the work plus any and all costs associated with overhead, profit, etc.

2. GENERAL CONDITIONS

A. Scope of Services: The project includes furnishing all supervision, management, labor, materials, and equipment. Construction equipment shall be in good working order and shall be operated safely at all times.

B. Safety and Liability: Government assumes no responsibility for injuries or damages suffered by Contractor, its officers, agents or employees, while engaged in the performance of this Contract. Contractor agrees to take reasonable measures to provide for the safety and security of its own workforce, and for the safety and security of all others present at the work site while engaged in the performance of this Contract. The contractor shall assume any liability for any injury incurred by contractor personnel while working on site.

C. Site Clean-up and Restoration: The contractor shall ensure the work site and areas around the work site are free of any debris and materials upon completion of work each day, as well as at the completion of the job. Contractor shall remove and properly dispose of all materials and equipment at the completion of the job.

D. Warranty: The Contractor warrants that the work performed under this Agreement conforms to the contract requirements and is free from any defect in equipment, material, design, finish or workmanship performed by or the responsibility of the Contractor.

i. Warranty shall include any damage to roofs regarding live loads created by the PV system as all structural loading calculations will be the responsibility of the Contractor.

3. SUBMITTALS

A. Bidder shall submit, with bid, information on any certifications pertaining to the work involved

B. Manufacturer’s Product Data: Submit copies of the manufacturer’s descriptive data.

4. INFORMATION FOR BIDDERS

A. Existing Site Plan for reference (Refer to Plans)

B. Vicinity Map (Refer to Plans)

C. Additional Information (utility bills, energy usage data, etc. available after contract has been awarded)

III. TECHNICAL REQUIREMENTS

1. PROJECT COMPONENTS

A. Design and installation of a roof-mounted photovoltaic system (modules, microinverters, wiring, and breakers) able to produce yearly power generation for the following locations:

i. Devil’s Elbow Campground: 25,000 kWh annually

ii. Holter Lake Campground: 10,000 kWh annually

iii. White Sandy Campground: 11,000 kWh annually

iv. Log Gulch Campground: 11,000 kWh annually

B. All system components shall comply with the Buy American Act (BAA) and shall be manufactured in the United States. For components not available domestically exceptions must be approved by the BLM.

C. System design must be submitted and approved through local utility provider’s application/approval program for photovoltaic arrays

D. System must be installed by a licensed NABCEP PVIP photovoltaic installer

E. Mounting system functional with the existing roof type (low-slope, corrugated metal roofing, shingles)

F. Installed grounding, wiring, and overcurrent protection consistent with current National Electric Code (NEC), International Residential Code (IRC), and International Energy Conservation Code (IECC)

G. Design shall include a complete set of construction documents, including drawings, specifications, cost estimate, and performance time.

H. Roof loading calculations. BLM will provide all truss design information available for calculations.

2. SITE ASSESSMENT AND PLAN PROPOSAL

A. Perform site survey and assessment of current utility connection

i. Calculated roof loading capacity for proposed arrays

B. Submit application of proposed photovoltaic system to local utility company for permit approval process. Application components found at https://northwesternenergy.com/clean-energy/our-environmental-projects/private-generation and must include the following:

i. Site plan

ii. One-line drawing of proposed system

iii. Picture of existing meter

3. SYSTEM COMPONENTS

A. Photovoltaic Array

i. Utilize premium modules with nominal power generation capacity > 375W

ii. Module Efficiency

a. 20% minimum

iii. Submit manufacturer’s product data for system

iv. 15-year minimum warranty on modules

v. Submit calculations indicating the energy produced by the system relative to the total energy demand for the building

B. Mounting System

i. Mounting system must be capable of attaching to existing roofing structure

ii. Mounting system must be capable of withstanding snow and wind loads associated with the current facility

iii. Wind speeds up to 100 mph

iv. Snow load of 30 psf

v. Mounting system must be installed without compromising roof integrity. All holes drilled during installation shall be sealed and impermeable after construction completion.

https://www.rockymountainpower.net/savings-energy-choices/customer-generation.html https://www.rockymountainpower.net/savings-energy-choices/customer-generation.html

C. Microinverters

i. Grid-direct inverter type with maximum power point tracking (MPPT) capabilities

ii. Complies with limits expressed in IEEE 1547 and UL 1741

iii. Built-in ground fault protection device (GFP)

D. Remote Monitoring System

i. built-in display with internet-based monitoring capabilities

ii. Must be compatible with microinverters installed and communicate via modbus

iii. Starlink Wifi exists at Devil’s Elbow, Log Gulch, and Holter Lake Sites. Hughes

Net Wifi exists at White Sandy. Install system that can communicate wirelessly via these providers

a. If the wireless signal is too poor to transmit information wirelessly, install a monitoring system capable of communicating via cellular network.

E. Meter

i. Coordinate with utility provider to remove and replace existing meter with unit compatible with photovoltaic system

F. Electrical

i. Installed grounding, wiring, and overcurrent protection consistent with current National Electric Code (NEC), International Residential Code (IRC), and International Energy Conservation Code (IECC)

G. Signage

i. Placards must be in accordance with utility provider and NEC regulations

4. INSPECTION

A. System inspection must be completed in accordance with utility provider requirements

i. Verify proper operation in all modes of system operation by testing. Verify proper operation under a wide range of conditions to verify energy delivery as calculated for those conditions.

ii. Comply with ASTM E1799- Standard Practice for Visual Inspections of Photovoltaic Modules.

END OF SECTION