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Upon completing the evaluations, the ICF team will compile and consolidate all the associated costs for each facility that has been assessed. A simplified illustration of our methodology to electrical infrastructure assessment is shown in Exhibit 9. Exhibit 9. ICFs Process for Load Capacity Analysis Facility/Site-Level Grid -Level Utility data on electrical service Metertbilling data City data on main panel capacity ratings Utility data on grid capacity �e a current Estimate headroom and overload Remaining capacity at each facilitylsite Projected EV charging load at each facility/site Grid constraints Grid upgrades to accommodate EV charging Charging Infrastructure Rollout Schedule & Cost: To advise the City on expectations for charging infrastructure development, the ICF team will develop a rollout timeline and cost estimates for the proposed charging infrastructure. Depending on circumstances, the lead time for charging infrastructure development can be significantly longer than the lead time for vehicle procurement. Due to this, a well -laid -out electrification timeline that includes both vehicle procurement and infrastructure development is critical to minimizing time for implementation. In developing these schedules, the ICF team will ensure there will be sufficient charging capacity available to support expected EV deployment, and the City can spread the cost over time to facilitate funding the infrastructure build out. In developing the schedule, the ICF team will consider the upfront utility upgrade and site preparation investments needed during the initial phase, known as futureproofing, to ensure sufficient charging capacity will be available within each facility to expand charging equipment in future years without the need for additional construction. For example, if a facility needs a total of 10 chargers by 2030, it is more cost-effective to build such capacity during the initial phase, while the charging equipment can be installed over multiple phases. The ICF team will also produce cost estimates for charging infrastructure development. Cost components to be factored into the analysis can be split into capital, and operating costs. Key capital costs include the following: • EVSE hardware (materials cost) and EVSE installation • Software (e.g., charging management /smart charging software) • Make-ready costs (e.g., site preparation —electrical work and wiring, special work such as boring and trenching, special site and structural considerations) • Distribution grid equipment and infrastructure upgrades Operating costs are also critical to determining the business case of deploying EV charging infrastructure, including charger networking costs, charger data contract costs, and maintenance costs. The ICF team will estimate capital costs across each infrastructure development scenario as well as the ranges of possible operating costs associated with each scenario. The ICF team will also develop cost estimates by location for each phase of infrastructure implementation across the entire charging infrastructure development timeline. Task 3.3: Fleet Transition Refresh Given the dynamic nature of the EV market, the ICF team has included in its offering one round of updates to the fleet transition plan over the course of the two-year on -call technical support service. This revision will encompass recalibrating vehicle replacement recommendations to align with the most recent vehicle models and their associated sn0, 1; id1'1 rN' M n ......I5.: ,.. vs.,a- - ri._] 1,, ';c 1 14