Exhibit_A_-_Current_Batteries_and_Parts.pdf

Exhibit A is an inventory list of current batteries and parts maintained by the City of Phoenix for the Regional Wireless Cooperative (RWC) direct current power systems. The document itemizes ten categories of equipment and components from four manufacturers: Vertiv, Duracomm, Narada, and Exponential. The inventory includes two Vertiv Netsure 7100 Power Systems with comprehensive subcomponents (relay racks, distribution cabinets, circuit breakers, battery shunts, and rectifier shelves), a Vertiv rectifier module, an inverter module, a Duracomm DC-to-DC converter, three Narada battery models ranging from 100 to 210 ampere hours, and one Exponential NEBS seismic tier rack system with bus bar components. This inventory forms the baseline of equipment for which the contracted vendor must provide parts, installation, and service support under the five-year contract commencing February 1, 2026.

The current inventory demonstrates the City's reliance on specific manufacturers and technical specifications for critical power infrastructure supporting the Regional Wireless Cooperative's radio site locations. By documenting existing equipment in Exhibit A, the City establishes the scope of compatible parts and systems that successful bidders must stock, service, and maintain. The inventory includes both primary power generation and distribution components (rectifiers, inverters, power shelves) and energy storage solutions (multiple battery configurations with varying capacities). This detailed listing enables contractors to understand the technical complexity and equipment diversity required for successful contract performance, while allowing the City to identify necessary inventory for emergency purchasing from alternative sources if needed.