Proterra Investor Presentation Deck

Heavy-Duty Batteries and Charging Trucks' and Buses' Heavy-Duty Cycles are Far More Demanding than Passenger Vehicles' Light-Duty Cycles Battery size per vehicle (kilowatt-hours) Olerem -60 Average passenger car 1 Higher Payload & Range Requirements 246 Proterra Powered last- mile delivery vehicle 738 Proterra Powered Class 8 truck 2 ~900 Proterra Powered ontainer handler 2 Useful life (miles) Longer Cycle-Life for up to 10+ Years of Daily Travel 152k Passenger car 3 2. Based on vehicles with supply contracts that are not yet in series production 3. NHTSAS "Vehicle Survivability and Travel Mileage Schedules," January 2006 180k Light-duty truck 3 1. The average usable battery capacity of >170 electric passenger vehicle models in the Electric Vehicle Database's Cheatsheet 4. 44k annual miles traveled per bus from American Public Transit Association's Public Transportation Fact Book 2019; minimum life of transit bus of 12 years from FTA. 528k Transit bus 4 1M+ Class 8 long-haul truck 5 Charging capacity (megawatts) 0.02 Passenger car home AC-charger 6 Industrial-Scale Power Delivery 1.1 Passenger car public DC-charging station 7 4.3 Proterra Energy installation at Edmonton Transit Services FO 9.0 Proterra Energy installation At Miami-Dade Transit 5. Research and Markets' "Life Cycle and TCO Analysis of Class-8 Trucks in North America, 2018-2032 6. Though the average home charger is 7.2 kW, this represents the maximum 19.2 kW (as per Blink charging) 7. Represents a typical 350 kW DC charger at the average 3.16 chargers/station (as per EV Adoption and Freewire Tech) LO 5

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