Solar PV Roof Full Expansion

This is a Sources Sought and is for Market Research Purposes ONLY. The U.S. Environmental Protection Agency (EPA) is conducting market research to determine if there are interested and capable offerors in the marketplace with the knowledge, skills, interest, and capability to perform the work as described below. The proposed project will be performed at EPA’s Research and Administration Facility in Research Triangle Park (RTP), North Carolina. EPA-RTP recently completed a thermoplastic polyolefin (TPO) replacement of the National Computer Center (NCC) roof and existing 100 kW solar photovoltaic (PV) array. The full roof size is 45,000 sqft. The 100 kW solar array occupies approximately 25% of the useable space. This project intends to outfit the remainder of the NCC roof with solar PV technology to the maximum extent possible. Exterior Work: Install solar panels, racking system, and associated electrical wiring, connections, and conduit for new minimum 300 kW solar PV array atop NCC roof and in parallel to existing 100 kW solar PV array. Solar array shall be installed at a 10-degree tilt angle toward Cardinal South of Celestial North. Salient characteristics for new equipment are contained in Attachment A. NOTE 1: No new rooftop penetrations shall occur during this installation. NOTE 2: All conduit and electrical wiring shall be routed into building through existing conduit penetrations on West wall of building (adjacent to SW corner of existing 100 kW solar PV array) via conduit and wire trays. Interior Work: Install inverters and associated electrical wiring, connections, disconnects, and conduit (EMT only) for new minimum 300 kW solar PV array inside electrical rooms N149 and N150. Connect all new inverters to SolarEdge Monitoring network via SolarEdge Cell Tower (Model No. SE-CELL-B-R05-S-S5) attached to existing 100 kW inverter. Salient characteristics for new equipment are contained in Attachment A. NOTE 3: All new inverters shall be installed adjacent to existing 100 kW inverter in Room N149 and shall conform to the wiring plan contained within Attachment B; Contractor shall confirm inverter installation locations with COR.

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Thermal and Moisture Protection, Dampproofing and Waterproofing, Thermal Protection.