Proterra SPAC Presentation Deck

PROTERRA BUSINESS UNITS PROTERRA ENERGY™ FLEET SOLUTIONS April 8, 2021 Mobile Energy Storage PROTERRA POWERED Proterra Energy: Vehicle-to-Grid Platform Unlocks New Revenue Opportunities PROTERRA PROTERRA POWERED TRANSIT Vehicle Data (kWh, miles, SOH) Bi-Directional Power Flow (DC) PROTERRA APEX CLOUD ENERGY MANAGEMENT Charge Session Metrics Command Charge/Discharge PROTERRA Bi-Directional Charger PROTERRA ENERGY FLEET SOLUTIONS Command & Schedule Charge Session Metrics PROTERRA Bi-Directional Power Flow (AC) 4 Distributed Energy Resource Management System A A Electrical Grid ENERGY PROVIDER Initial Customers: Dominion Energy Beverly, Massachusetts Proterra Vehicle-to-Grid Applications Can Transform Electric Vehicles Into Utility Grid Assets and Lower TCO Data Energy 36

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