Proterra SPAC Presentation Deck

April 8, 2021 35 # of 150 kW chargers: 45 12 Max. power demand: 5 MW 1.3 MW Hypothetical project cost: $17.4 M $9 M 42 15: POWER DEMAND ON GRID Power (kW) threshold Demand charge Power (kW) threshold Demand charge In Operation Charging Scheduled Maintenance 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 00:60 11:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 42 39 36 33 30 27 24 21 18 15 12 9 6 3 0 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 3.37 A Dung D 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 Miles & kWh Used/ Remaining 22:00 23:00 EELNE ICHQI O 42 39 36 33 30 27 24 21 18 15 12 9 6 3 0 Speed) BUS & CHARGER SCHEDULE Unmanaged Charging Model Managed Charging Model Proterra Energy: Apex Software Aims to Optimize Charging & Energy Usage POWERED PROTERRA FLEET SOLUTIONS ENERGY™ PROTERRA PROTERRA TRANSIT PROTERRA PROTERRA BUSINESS UNITS

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