2026-043-E-AMS-ICF Incorporated-EV Charger Study

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Electric Vehicle Transition Plan & Charging Infrastructure Evaluation for County Fleet Price Proposal RFQ 367-OC5463 December 23, 2025 Use or disclosure of data contained on this sheet is subject to the restrictions on the title page of this proposal 10 In this task, ICF will also evaluate a variety of options for EV charging infrastructure implementation and conduct a comprehensive cost estimate of EV charging equipment and installation. Cost components to be factored into the analysis can be split into capital, and operating costs. Key capital costs include the following: • Charging infrastructure hardware (materials cost) and installation • Software • • Distribution grid equipment and infrastructure upgrades • Make-ready costs • Operating costs are also critical to determining the business case of deploying EV charging infrastructure and include the following: • Cost of electricity based on rate tariffs used • Demand charges • Charger networking costs • Charger data contract costs All capital and operating costs are crucial factors in determining the business case of charging infrastructure. ICF will estimate capital costs across each infrastructure development scenario, as well as the ranges of possible operating costs associated with each sce nario. ICF will also develop cost estimates by location for each phase of infrastructure implementation across the entire charging infrastructure development timeline. This timeline shall align with and stays ahead of the purchase of replacement ZEV that will park at each location. A key factor that can influence the incentives and grants available to the County is whether the installed chargers are accessible to the public. ICF will outline the pros and cons of making certain chargers publicly accessible in exchange for substantial incentive funding, which can often cover the full installation cost. Additionally, we will identify incentives available to the County even without public access to chargers, though these opportunities are less common and more competitive. Importantly, we will also provide a cost assessment for the maintenance of EV chargers over the fleet’s lifetime. Having worked with over 100 municipalities across the country on their electrification plans, ICF brings a wealth of experience in implementing best practices for sharing the costs of EV infrastructure across departments. We will leverage successful strategies from various municipalities to ensure equitable cost distribution while streamlining the procurement and installation process. Utility-side Electrical Infrastructure Assessment: Once the team has determined the number, types, output power levels, and locations of chargers to be deployed, we will review the capacity of the County’s facilities to support the projected additional electrical load from charging EVs and identify potenti al site-level and distribution grid impacts of that additional load. To identify potential utility distribution electrical infrastructure impacts, our team will first coordinate with Duke Energy & Piedmont Electric Coop to review data that they already have on the capacity of existing distribution grid infrastructure. Our existing relationship with Duke Energy and experience working with coops like Piedmont Electric will help streamline the data collection process to answer the following questions: • How large is the electrical service from the utility for each relevant facility? • How much electrical current is each facility consuming at existing peak power demand levels? • How much electrical capacity is remaining on the utility-side of the meter at existing peak power demand? • How much electrical capacity remains on the County’s facility side of the meter? Responses to these questions will help us gather the needed data to conduct the electrical capacity analysis at each facility and to determine any potential impacts to the electric grid. With an understanding of Docusign Envelope ID: 2559C90D-4549-45D0-8554-7958990EE7B9