Proterra SPAC Presentation Deck

PROTERRA BUSINESS UNITS PROTERRA ENERGY™ FLEET SOLUTIONS April 8, 2021 PROTERRA TRANSIT PROTERRA POWERED Proterra Energy: Eliminating the Friction to Electric Fleet-Scale Charging Efficient Charging and Energy Management Solutions Can Lower the Total Cost of Ownership of Electrification PROTERRA ENERGY™ FLEET SOLUTIONS Capital Costs Reduction in chargers per vehicle of 50%+ Eliminates need for switchgear and transformer upgrades Fleet Charging Constraint Compatibility Charges Proterra and other electric vehicles Compliance with SAE universal standards; CCS1 industrial dispenser Universal plug-in and pantograph options Spatial Only 1,100 sq. ft. per MW of charging 34% reduction in equipment square footage PROTERRA Energy Costs Optimizes charge scheduling and control • Minimizes utility demand charges Our Proprietary Software Algorithms Analyze Fleets and Utility Rates to Optimize Scheduling and Charging 37

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