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15 <br /> Electric Vehicle Transition Plan&Charging Infrastructure Evaluation for County Fleet RFQ 367-005463 <br /> Price Proposal December 23,2025 <br /> Task 2. EV Charging Infrastructure Planning & Electricity Grid Impacts <br /> Charging Infrastructure Assessment: Using our fleet PowerGuide Charge <br /> modeling results and recommendations developed with g \lo <br /> PowerGuide Analytics, we will identify sites that will Powered by— _ <br /> �� <br /> require new or upgraded charging infrastructure, <br /> CF <br /> including the number, types, and power level of EVSE. This assessment will be conducted using our <br /> PowerGuide CHARGE tool, which is specifically designed to evaluate the charging energy and power <br /> requirements at each site where EV replacements are recommended and where EV operation is <br /> concentrated. The algorithms embedded in the tool analyze expected vehicle operations at each site and <br /> compare them with critical information on the EVs to accurately estimate daily charging needs. Key factors <br /> considered include the vehicles' energy efficiency, daily mileage or operation hours, battery capacity, <br /> maximum power acceptance rates, and available charging time. <br /> Based on the anticipated operating conditions and constraints at each site, the PowerGuide CHARGE tool <br /> will provide tailored recommendations for specific charger types and power levels, ensuring that these are <br /> optimized on a vehicle-by-vehicle basis. Several outputs from our fleet assessment are key inputs for <br /> developing charging infrastructure, including the following: <br /> Which existing vehicles are recommended for replacement with EVs and what types they are <br /> How much energy and power each EV will need to charge, as a function of: <br /> ✓ Average daily energy consumption (in kWh) – based of daily VMT <br /> ✓ Vehicle battery energy capacity (in kWh) <br /> ✓ The duration of time each vehicle has to charge between shifts and operations <br /> ✓ The maximum power acceptance rate for each vehicle (in kW) <br /> Where EV replacements will dwell <br /> Seasonal variation in daily VMT–we want to plan for the worst case while balancing the cost of over <br /> installing based on a rare occurrence <br /> Whether or not smart/networked charging is desired <br /> Whether or not the fleet will use a charging management system <br /> To determine the location of chargers, the PowerGuide CHARGE tool uses information on vehicle dwell <br /> time, driving routes, parking locations, and the operational characteristics. Fleet vehicles do not necessarily <br /> need to be charged at the locations where they are being parked. Similarly, depending on co-locations, <br /> charging infrastructure may be considered at sites that multiple department fleets could share. Using this <br /> information, the ICF team will develop a baseline charging infrastructure implementation scenario with <br /> rollout schedule that projects the following information: <br /> The projected number of chargers needed at each site to support the EV replacements over the next <br /> 15 years <br /> The recommended locations of EV charging infrastructure <br /> The recommended type (e.g., Level 1, Level 2, DCFC) and power level (in kW) of chargers for each <br /> vehicle type <br /> The overall power need associated with charging infrastructure at each site <br /> Use or disclosure of data contained on this sheet is subject to the restrictions on the title page of this proposal <br />