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Investor Presentaiton

Future Proofed Fast Charging . • EVgo is focused on optimizing EVSE architectures and station designs to drive returns Next generation power sharing architecture modularizes EVSE and increases asset utilization • • Designed for power delivery in excess of capabilities of next generation EVs Architecture allows EVgo to augment power, add connectors and optimize capacity Modularization commoditizes hardware and centralizes management logic, accelerating equipment cost declines over time • Design and underlying control reduces COGS and optimizes throughput, increasing returns Illustrative Power Sharing Architecture • • EVgo's customer-centric site design philosophy considers use case, future EV capabilities, and upgradeability Sites often include additional trenching, conduit equipment, pads and larger switchgear to size for more chargers or increased power Infrastructure sized using probabilistic modeling of future behavior and charge rates to ensure proper capacity Station layouts incorporate OEM input to ensure all future EVs are able to charge Site Design for Best Customer Experience Station-level Energy Management DC-Bu DC Power Routing Battery Power Blocks g Cooling Cooling g Cooling -Grid Power Cabinets Charging Dispensers TRUCK 78" effective R, 120" cable 97 1/4" effective 8, 144" cable 108" effective R, 180" cable 108" 37 3/4" 32 3/4" EVgo CAR E ONY EVgo 22

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