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18 <br /> Electric Vehicle Transition Plan&Charging Infrastructure Evaluation for County Fleet RFQ 367-005463 <br /> Price Proposal December 23,2025 <br /> peak power demand and the voltage of service drops at each facility, our team will estimate the maximum <br /> current used at each facility at peak power demand. This will then be subtracted from the size of existing <br /> electrical service to provide an estimate of how much electrical capacity is remaining on the utility side of <br /> the meter. Our team will then compare that to the projected additional load from EV charging at each facility <br /> to determine whether each facility has sufficient utility-side capacity to accommodate chargers or if <br /> upgrades may be necessary. For priority facilities, ICF will gather data to understand the size and location <br /> of transformers, amount of existing capacity on them, as well as any practical challenges related to charger <br /> installation like long trenching distances or insufficient parking near existing transformers. This effort with <br /> the utility will be used to update the charger installation timeline to include necessary upgrades on the part <br /> of the utility and incorporate that effort into the lead time for each site. It will also be used to update the cost <br /> estimates for each site with utility-specific information on the costs of the typical upgrades which we already <br /> have in our pricing model. These price estimates are based on industry experience and work with various <br /> utilities across the country but can be further refined to take advantage of cost data provided by Duke <br /> Energy Progress & Piedmont Electric Coop in order to ensure they align with what will be required of the <br /> County. <br /> Facility-side Electrical Infrastructure Assessment: After completing the distribution grid capacity <br /> analysis, the ICF team will assess the existing electrical infrastructure at each of County facilities for its <br /> ability to support the proposed EV charging infrastructure. This evaluation will determine if the current <br /> infrastructure is adequate or if upgrades, such as panel upgrades or the installation of step-up/down <br /> transformers, are necessary. Should an upgrade be deemed necessary, the ICF team will document this <br /> requirement and proceed to evaluate the associated costs, ensuring a comprehensive understanding of the <br /> investment required. Additionally, the ICF team will explore the costs related to preparing each facility for <br /> the deployment of charging infrastructure, covering a broad spectrum of components crucial for the site's <br /> overall readiness, including: <br /> • Point-of-Service: Identifying which point-of-service chargers will connect to in order to identify the <br /> deficiencies in existing infrastructure for both County and utility infrastructure. <br /> • Panel and Service Boards: Estimating costs for upgrading or installing new electrical panels and <br /> service boards to accommodate additional loads. <br /> • Step-up/Step-down Transformers: Evaluating the costs for installing transformers that are <br /> essential for converting electrical power from one voltage to another(to serve both Level 2 and <br /> DCFC chargers)—these transformers are crucial in scenarios where a switch between 208 volts <br /> (V) to 480 V or vice versa is needed to match the power requirements of the EV charging stations <br /> with the facility's existing electrical infrastructure. <br /> • Meters: Assessing the need and costs for new or upgraded metering systems to monitor electricity <br /> usage. <br /> • Conduit and Cable: Calculating the expenses for necessary conduit and cable installations to <br /> connect the charging stations. <br /> • Trenching: Determining the costs for trenching work required to lay down electrical lines <br /> underground. <br /> • Bollards: Evaluating the expenses for installing bollards to protect charging stations from <br /> accidental vehicular damage. <br /> • EV Signage and Striping: Assessing the costs for necessary signage and striping in parking <br /> areas to designate EV charging spots. <br /> Use or disclosure of data contained on this sheet is subject to the restrictions on the title page of this proposal <br />