36C25624R0100 SOW.doc

Scope of Work

Solar Photovoltaic Repair and Recommissioning 502-25-480 I.

Scope of Work Alexandria VA Health Care System has a requirement to restore photovoltaic (PV) production by refurbishing an existing PV array system, System B. System B is one of the four system which is located Northeast and Northwest in the solar field. System B is no longer functional due to a catastrophic failure. Contractor must replace System B existing 500 kw inverter with smaller and grouped inverters to deliver the same equivalent capacity while utilizing the existing 2310 array modules contained with the system. The new string inverter system must improve PV plant uptime and production.

The existing Solectria SGI 500 inverter system, recombiner boxes, distribution panelboards, and interconnected wiring, and metering must be replaced. To make the new grouped inverter system compatible with the existing array modules, at a minimum, the project requires eight string inverters with electrical disconnect per inverter, two AC recombiners power panelboards, one meter, one junction DC junction box, auxiliary power panel for local reading, remote data monitoring, and one MV step up pad mount transformer. The existing inverter equipment pad with roof shade must be reused and extended to cover and support new equipment. Ground fault protection and lightning protection must be included in the project. Contractor is required to make all connections to the existing 13.2KV primary hospital electrical system from the existing PV system and to the new PV system. Contractor is required to select equipment sizing, wiring and layout which must be coordinated with a certified electrician and equipment manufacturer.

Provide engineering technical support as required by the project to facilitate the delivery of a coordinated and functional design for the modified system. Technical support includes tasks such as specifying electrical equipment, reviewing equipment shop drawings and responding to the project team’s RFI’s from the factory and contractors. Provide engineering support for Factory Acceptance Testing of panels and the Site Acceptance Testing.

As a deduct alternate, provide fully ability for remote monitoring through a software system and the facilities building automation system. Monitoring system must be able to meter and detect any abnormal condition from expected solar production.

All work must be performed as specified herein and shall be in accordance with all applicable codes indicated in the Department of Veterans Affairs (VA) Design Manuals and any other applicable codes. The Contractor must provide all necessary labor, materials, tools, equipment, licenses, permits, and services for completion of this project. The Contractor must be responsible for all damages to persons or property occurring as a result of the Contractor’s fault or negligence. The Contractor must be responsible for all materials delivered and work performed until completion and acceptance of the entire work.

II. Hours of Work:

Work can be performed during normal business hours of 8:00 AM and 4:30 PM, Monday through Friday, Federal Holidays excluded. Any required outages needed in order to perform the work, will be scheduled at the convenience of the hospital. Outages will be coordinated two weeks in advance of the required outage. Contractor must provide a two-week advice notice so the hospital makes appropriate arrangements.

III. Period of Performance The construction portion of this project will consist of two separate periods, each of which must be preceded by a NTP issued by contracting.

1. Pre-construction period – 120 Days – Contractor to provide the following deliverables before the end of this period:

1. Submittal log of all submittals to be approved during the course of the project

2. Written statement from manufacturer on material lead time to justify submittal period

3. All submittals which are to be approved by the VA COR.

2. Construction period – All contractually required work and tests must be successfully completed within 180 calendar days of issuance of Notice to Proceed for construction.

3. It is anticipated that 5% of work will be completed after normal duty hours which includes electrical connections to existing electrical systems.

IV. Required Submittals

The below required submittals are in addition to the submittals required by the specifications. Refer to 01 33 23 SHOP DRAWINGS, PRODUCT DATA, and SAMPLES 1.

Construction Schedule

2.

Project Schedule of Values

3. Quality Control and Safety Plan

4. Commissioning Plan

5. Product submittals

6. One-line diagram (Before and After Install)

7. Demo One-Line Diagram and Equipment Demo Plan

8. Cable & Conduit Plan and Schedule

9.

Grounding Plan & Details

10.

Panel layout and wiring diagrams

Submittals must be reviewed and approved by the VA prior to the start of work.

V. VA Requirements

Contractor is responsible for all necessary infection control measures to include, but not limited to dust partitions, walk-off mats, daily clean-up and final cleaning upon project completion. Contractor shall be responsible for removing all items demolished from the station. Contractor to work in accordance with the Infection Control Risk Assessment provide and in accordance with the General Requirements, Safety Requirements and Construction Waste Management specifications provided. Contractor shall follow all applicable Federal, State & Local Codes.

VI. Attachments

1. Solar – 1A Existing As-builts

VII. LOCATION OF PROJECT:

Alexandria VA Health Care System 2495 Shreveport Hwy, 71N Pineville, LA 71360