Design Build Service Photovoltaic

Statement of Work (SOW) / Performance Work Statement (PWS)

To make necessary revisions to a previously installed 8-kW roof-mounted photovoltaic (PV) system at the Buenos Aires National Wildlife Refuge, ensuring it is connected to the local electrical grid and meets utility interconnection agreement requirements.

This SOW outlines a base bid and several optional items for the revision and potential enhancement of the existing PV system. The base bid includes:

• Verifying and ensuring proper grounding of the PV array and components.
• Locating the AC disconnect within 10 feet of the main service panel.
• Adding a solar output meter within 10 feet of the main service panel.
• Providing updated labeling for all PV system components.
• Preparing and submitting the interconnection application, responding to utility comments, and attending required inspections.

Optional items include:

• Option A (Rooftop Cable Management): Checking DC string wiring, replacing non-compliant connectors, and tidying cabling under PV panels.

• Option B (Battery Installation): Designing, documenting, and installing a multi-modal 10 kWh battery system, including utility application and FWS staff training.

• Option C (Monitoring App Setup): Setting up a monitoring app (Sunny Portal) and training on-site staff.

• Option D (Relocate Array to Ground): Designing and constructing a ground-mount system, relocating panels, making necessary roof repairs, and ensuring code compliance for conduit runs. This option replaces Task 2 and includes replacement of faulty wiring/parts.

• The work can occur any time of year and must be completed within 90 calendar days of the Notice-To-Proceed.

• All work is located at the Bailey House, Buenos Aires National Wildlife Refuge, approximately 60 miles south of Tucson, AZ (35560 South Sasabe Road, Tucson, AZ 85736).

• Prevention of harm to persons, research, plants, animals, and property is a priority.

• Work must comply with applicable federal, state, and local codes (IBC, NEC, NFPA 101, etc.) and general industry standards.

• A minimum 24-hour notice is required for any power outage.

• No plants or animals may be brought onto or removed from the Refuge.

• Contractor-owned equipment may be stored at the Refuge.

• Work week is typically Monday-Friday, 8:00 a.m. to 4:30 p.m., unless otherwise approved.

• Contractor must notify the COR at least seven (7) days prior to arrival on-site.

• Government-furnished materials include power at the project site; no restroom facilities will be provided.

• Meetings are anticipated, including a kickoff, punch-list walk, and final site visit.

Solicitation / RFP / RFQ

This solicitation is for Design Build Services for Photovoltaic System Revisions at the Buenos Aires National Wildlife Refuge in Pima County, Arizona. The estimated magnitude for the entire project is between $25,000 and $100,000.

• Design and build services for photovoltaic system revisions.

• Tasks include: Revisions for Utility Compliance, Cable Management, 10 kWh Battery installation, Monitoring Application, and Install Fall Arrests.

• Deliverables include: 50%/95% drawings, stamped final drawings, as-builts, manuals, and training videos.

• Compliance with NEC, IBC, utility, and safety requirements.

• Grounding verification, AC disconnect relocation, and solar production meter installation.

• Updating labeling, replacing non-compliant connectors, managing DC string wiring, and ensuring code-compliant cable support.

• Option C (if proposed) involves ground-mount relocation, engineering the structure, relocating panels, repairing the roof, and installing conduit below grade.

• Contract Type: Firm Fixed Price.

• Period of Performance: Base scope is 365 calendar days after notice to proceed. Specific task periods of performance are generally from 03/02/2026 to 05/31/2026.

• Estimated Value: Between $25,000 and $100,000.

• Proposal Submission Deadline: 04/27/2026 at 17:00 local time.

• Proposals must be submitted electronically as PDF files, 8.5" x 11" format, single-sided pages, with a minimum 11-point font and one-inch margins.

• Evaluation Factors (Weighted): Technical Approach (40%), Experience & Past Performance (25%), Project Management & Schedule (15%), Key Personnel Qualifications (10%), and Price (10%).

• Technical non-price factors are significantly more important than price.

• A Best Value Tradeoff process will be used for award.

• Questions must be submitted in writing by the date specified and will be responded to via amendment.

• NAICS Code: 238160 Electrical Contractors and Other Wiring Installation Contractors.

• Size Standard: $19M.

• Offerors must possess required licenses/accreditation, including an AZ-licensed electrical engineer.

• A non-mandatory pre-bid site visit is scheduled.

• Offerors must account for site safety and refuge restrictions, including no restroom facilities available on site and requiring 24-hour notice for power outages.

• The Government may conduct a reverse auction.

• Past performance will be evaluated using CPARS, internal records, or references.

Solicitation / RFP / RFQ

This solicitation is for Design Build Services for Photovoltaic System Revisions at the Buenos Aires National Wildlife Refuge in Pima County, Arizona. The North American Industrial Classification Code (NAICS) is 238160 (Electrical Contractors and Other Wiring Installation Contractors) with a size standard of $19M.

• The primary requirement is a "Base Bid" for "Revisions for Utility Compliance."

• Optional tasks include "Cable Management," "10 kWh Battery," "Monitoring Application," and "Install Fall Arrests." These options may be assigned at a later date, subject to the availability of funds.

• The estimated magnitude for the entire project is between $25,000 and $100,000.

• Performance period for the Base Bid and optional tasks is March 2, 2026, to May 31, 2026.

• Delivery is expected by May 31, 2026, FOB Destination.

• Proposals are due by 1700 local time on April 27, 2026.

• Requests for clarification and questions must be submitted via email to Joann Mallory at Joann_mallory@fws.gov no later than five (5) calendar days prior to the proposal closing date.

• Offers providing less than 90 calendar days for Government acceptance after the due date will be rejected.

• Performance and payment bonds are required.

• No specific set-aside is mentioned in the provided pages.

• A pre-bid site visit is highly encouraged. Details for the site visit are specified in the solicitation contract clauses.

• The solicitation is issued by FWS, Construction A/E Team 1.

Form / Attachment / Pricing Sheet

This document contains drawings and specifications related to the "Bailey PV" solar generator installation. It includes site plans, electrical diagrams, and equipment schedules.

• Site Plan (Sheet A1.0): Depicts the overall layout of the property, including existing structures, proposed water and electrical lines, septic system, and the location of the residence.
• PV System Plan and Calculations (Sheet PV-101): Details the roof layout plan, conduit and conductor schedules, equipment schedules (PV modules, inverters), one-line diagram, and general notes for the photovoltaic system.
• Trico Electric Cooperative, Inc. Interconnection Requirements for Distributed Generation: This document outlines the technical requirements for interconnecting distributed generation systems with Trico's electric distribution system.

This attachment provides critical technical details and specifications for the solar generator system. Bidders will need to review these drawings and specifications to understand the scope of work, the type of equipment required, and the interconnection requirements with Trico Electric Cooperative. This information is essential for accurate proposal development and ensuring compliance with all technical and regulatory standards.

Form / Attachment / Pricing Sheet

This document is a Department of Labor (DOL) Wage Determination for building construction projects in Pima County, Arizona. It establishes the prevailing wage rates and fringe benefits for various construction trades, as required by the Davis-Bacon Act.

• General Decision Number: AZ20260040, dated 01/02/2026.
• State: Arizona
• County: Pima County
• Construction Type: Building (excluding single-family homes or apartments up to 4 stories).
• Wage Rates & Fringes: Lists specific rates and fringe benefits for trades including Bricklayer, Carpenter, Electrician (various types), Power Equipment Operator, Ironworker, Pipefitter, Sheet Metal Worker, Cement Mason/Concrete Finisher, Drywall Finisher/Taper, Laborer (various types), Operator (Backhoe/Excavator/Trackhoe, Loader, Roller), Painter, Plumber, and Tile Setter.
• Executive Order 13706 (Paid Sick Leave): Applies to contracts awarded on or after January 1, 2017, requiring 1 hour of paid sick leave per 30 hours worked, up to 56 hours annually.
• Executive Order 13658 (Minimum Wage): Generally applies to contracts awarded between January 1, 2015, and January 29, 2022, setting a minimum wage of $13.30 per hour (or the applicable wage determination rate, if higher) for 2025.
• Unlisted Classifications: May be added after award per 29 CFR 5.5 (a) (1) (iii).
• Rate Identifiers: Explains the meaning of prefixes like "SU", "UAVG", "SA", and "SC" used to denote different types of wage rates (union, survey, state-adopted).
• Appeals Process: Outlines the procedure for appealing wage determination decisions.

This document is crucial for bidders to understand the labor costs associated with the opportunity. It specifies the minimum wage rates and fringe benefits that must be paid to laborers and mechanics employed on the construction project. Bidders must factor these mandated labor costs into their proposals to ensure compliance and accurate pricing.

Form / Attachment / Pricing Sheet

This document is a Bid Schedule for the Photovoltaic System Revisions Design & Build project at the Buenos Aires National Wildlife Refuge. It outlines the cost breakdown for the base bid and optional items, and serves as a template for bidders to submit their pricing.

• Base Bid: Task 1 - Revisions for Utility Interconnection Compliance.
• Optional Items:
  • Task 2 - Option Item A: Cable Management
  • Task 3 - Option Item B: Install 10 kWh Battery
  • Task 4 - Option Item C: Monitoring App
  • Task 5 - Option Item D: Install Fall Arrests
• Fields for "Total Cost Base Bid", "Total Cost Options", and "Total Proposal Cost".
• Sections for bidder to provide "Name of Bidder and Company" and "Address (Include Zip Code)".

Bidders must complete this schedule to provide their pricing for the base bid and any selected optional items. The "Total Proposal Cost" will be a key component of the bid submission. The document also states that "Incomplete Bids will not be considered."

Form / Attachment / Pricing Sheet

This document is a Past Performance Questionnaire designed to gather feedback from references regarding an offeror's performance on previous contracts. It is intended to assist the government in evaluating the offeror's past performance as a factor in the selection process.

• Instructions to Offeror: Details on how to prepare and send the questionnaire package, including a sample transmittal letter and required components (cover letter, respondent info, rating sheets, pre-addressed envelope).
• Sample Transmittal Letter: A template for offerors to use when sending the questionnaire to their references, including instructions on submission deadlines and contact information for questions.
• Contractor Information Section: Fields for the offeror to complete, detailing the reference project, contract period, contract number, description of work, and the offeror's role (Prime Contractor, Sub-contractor, Key Personnel).
• Respondent Information Section: Fields for the reference contact to complete, including company name, POC, phone number, and email.
• Performance Information: A rating scale (0-5) for various aspects of performance, including Quality – Management & Workmanship, Timeliness and Adherence to Schedule, Business Practices/Customer Relationship and Ability to Perform, Compliance & Safety, and Infection Control. Space is provided for remarks and explanations.
• Overall Customer Satisfaction: Questions regarding cost proposal reasonableness, cure/show cause notices, and willingness to award another contract.

Bidders must use this form to solicit feedback from their past performance references. They need to complete the offeror sections and send the questionnaire to their references, ensuring timely submission by the specified deadline. The responses from these references will be used by the government to evaluate the bidder's past performance. Bidders should also review the evaluation criteria within the questionnaire to understand what aspects of their performance will be assessed.

Solicitation / RFP / RFQ

This document is a pre-solicitation notice for a Design Build Service for Photovoltaic System Revisions at Buenos Aires National Wildlife Refuge, AZ. The Department of Interior is issuing a Request for Proposal (RFP) under Solicitation Number 140FC126R0007.

• Design Build Service for Photovoltaic System Revisions.

• Contract Type: Firm Fixed Price (FFP).

• Procurement Method: Best Value Tradeoff (FAR 15.101-1).

• Evaluation Criteria:

  • Technical Approach – 40%
  • Experience & Past Performance – 25%
  • Project Management & Schedule – 15%
  • Key Personnel Qualifications – 10%
  • Price - 10%

• Solicitation documents will be posted via SAM.gov on March 26, 2026.

• All inquiries and questions must be submitted in writing.

• Set-Aside: Total Small Business.

• NAICS Code: 238210 – Electrical Contractors and Other Wiring Installation Contractors.

• Size Standards: $19M.

• Contractors must be registered in the System for Award Management (SAM) to participate.

• The solicitation package will include the Solicitation Form (SF1442), Statement of Work, and other necessary attachments.