TerraVolt Energy Storage Systems
About the TerraVolt Energy Storage Systems
Proterra’s proprietary TerraVolt™ Energy Storage System for heavy duty electric vehicles is a market disruptive product. The TerraVolt integrates safety and unique functionality into a scalable, cost effective system capable of delivering or absorbing extremely large amounts of power while offering a substantial energy reserve for all-electric operation.
The purpose of the TerraVolt™ ESS (Energy Storage System) is to provide high voltage power to the traction motor and accessories in the vehicle such as power steering, radiator and HVAC. Our ground breaking approach to energy storage and power management allows the Proterra brand to offer unique and unmatched capabilities in the heavy vehicle industry including the following:
- Industry’s only system that can be fully charged in less than 10 minutes
- Ultra safe system design
- Puncture and heat resistant
- Active cooling to assist in safety and longevity of the system
- Sophisticated, active battery management system
- Chemistry agnostic energy storage system will adapt to the latest battery chemistries introduced
- Scales in size and energy capacity to suit vehicle type and duty cycle needs
- Enables one-for-one replacement of conventional diesel transit buses
Space constraints within the vehicle generally drive the design of an energy storage system. The compact packaging of the TerraVolt™ ESS allows it to be placed beneath a low floor transit bus and still maintain road clearance and approach/departure angles that comply with American Public Transit Association bus standards. This then allows the bus to have a conventional bus seating pattern with no compromises to accommodate our advanced technology systems..
To compete on a lifetime cost basis, Proterra has engineered the system to have a long life and to be maintainable. Maintenance on the packs only involves an annual check to verify that connectors are tight and to give the pack interior a visual inspection. Our proprietary design contributes to an overall lifespan of the packs of up to 8-12 years depending on the vehicle’s duty cycle and charging patterns.