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16 <br /> Electric Vehicle Transition Plan&Charging Infrastructure Evaluation for County Fleet RFQ 367-005463 <br /> Price Proposal December 23,2025 <br /> Charging Infrastructure Optimization: One of the key features that <br /> sets ICF's PowerGuide Charge tool apart from other charging <br /> infrastructure models in the market is its embedded optimization <br /> algorithms. These algorithms enable the County to optimize the <br /> number of chargers b increasing the vehicle-to-plug V2P ratio while w thisscenario,each vehicle is paired <br /> g y � g p g ( ) with a dedicated charging plug,ensuring <br /> maintaining the resilience of both charging and fleet operations. that every vehicle has its designated <br /> Following the development of the baseline charging infrastructure charging port. <br /> needs scenario (assuming 1:1 V21P), PowerGuide Charge uses its <br /> optimization algorithm to develop an optimized charging infrastructure Optimized V2P Ratio Scenario <br /> needs scenario. This involves determining the most appropriate V2P <br /> ratio for each facility and groups of vehicles and assessing the <br /> feasibility of smart/scheduled charging. This approach implies using <br /> fewer charging stations to service a greater number of EVs, leading to <br /> significant cost savings. It reduces the upfront investment in charging <br /> infrastructure and minimizes ongoing operational and maintenance <br /> expenses. Moreover, this efficient use of resources is particularly •optimized V2P ratio <br /> beneficial in conserving space, a crucial aspect in urban or densely •Multiple vehicles share a port <br /> populated areas. The ICF team will carefully review the This scenario aims to optimize the number <br /> recommendations provided by its PowerGuide Charge tool to identify port iciess ale <br /> p capable <br /> ofsharied b gadjusting charging <br /> gi he <br /> the highest feasible V2P ratios that can be achieved while ensuring vehicle-to-plug ratio to ensure efficient use <br /> reliability and successful daily operations of the fleet. ICF will also of infrastructure while still meeting each <br /> investigate the effects of peak and off-peak pricing on the proposed vehicle's duty cycle, <br /> charging plan —when in some cases it may make sense to make <br /> operational changes to allow for cheaper charging. In other cases, we may recommend scheduled charging <br /> at night which fits with existing operations but starts after midnight when peak rates have reduced. <br /> In determining the charging infrastructure needed for each location, the ICF team will also plan for future <br /> growth and expansion by considering the scalability of the chosen charging station configurations. Our <br /> team will anticipate the potential increase in the County's EV fleet and ensure the selected charging <br /> stations can accommodate the additional demand. This may involve allocating additional space and <br /> electrical capacity for future installations. By proactively considering scalability, the ICF team will ensure the <br /> charging infrastructure can easily adapt and scale up to meet the growing needs of the County's EV fleet. <br /> Charging Infrastructure Rollout Schedule &Cost: To advise County departments on expectations for <br /> charging infrastructure development, the ICF team will develop a rollout timeline and cost estimates for the <br /> proposed charging infrastructure for each of the County's 28 sites. Depending on circumstances, the lead <br /> time for charging infrastructure development can be significantly longer than the lead time for vehicle <br /> procurement. Due to this, a well-laid-out electrification timeline that includes both vehicle procurement and <br /> infrastructure development is critical to minimizing time for implementation. In developing these schedules, <br /> the ICF team will ensure there will be sufficient electrical capacity available to support expected EV <br /> deployment, and the County can spread the cost over time to facilitate funding the infrastructure build out. <br /> In developing the schedule, the ICF team will consider the upfront utility upgrade and site preparation <br /> investments needed during the initial phase, known as futureproofing, to ensure sufficient electrical <br /> capacity will be available within each facility to expand charging equipment in future years without the need <br /> for additional construction. For example, if a facility needs a total of 10 chargers by 2030, it is more cost- <br /> effective to build such capacity during the initial phase, while the charging equipment can be installed over <br /> multiple phases. <br /> Use or disclosure of data contained on this sheet is subject to the restrictions on the title page of this proposal <br />