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The Saf-T-Linerregistered C2 Jouley Electric School Bus

Powered by Proterraregistered technology

Zero-Emission Transportation for The Next Generation

Proterra has partnered with Thomas Built Buses to electrify their most popular vehicle, creating a 100% battery-electric bus designed to meet the needs of school bus fleets. The Saf-T-Liner C2 Jouley powered by Proterra technology brings Proterra’s proven battery and drivetrain technologies to the North American school bus market, the next frontier for zero-emission commercial fleets.

Zero Emissions

100% battery-electric with no tailpipe, reducing exposure to emissions and improving air quality.

Greater Efficiency

Proterra drivetrain with unparalleled performance and regenerative braking for maximum range.

Lower Operating Costs

Fewer moving parts for simplified maintenance and better MPGe for greater savings.

The Proterra Battery


  • Active thermal management ensures optimal charging in any climate
  • Multiple sensors enable continuous monitoring
  • Dynamically adjusts energy reserve over time for maximum performance


  • Protective, ruggedized enclosure with ballistic-grade materials
  • Passive and active safety mechanisms for heavy-duty applications
  • Rigorously tested and 3rd party validated, ISO certified


  • Compact design delivers industry-leading energy density
  • Highest efficiency, with industry-leading range


  • More than 14 million service miles on transit buses across North America
  • Achieved record-breaking range for heavy-duty vehicles

Smart Charging Solutions For Electric School Buses

Standardized Technology

Industry-standard charging technology seamlessly connects with your electric buses and other electric vehicles in your depot, on campus, or in your community.

Fast Charging

DC charging enables a full charge in around 3 hours – significantly faster than AC charging alternatives.

V2G Capable

The ability to deliver bi-directional power makes Proterra charging systems Vehicle-to-Grid capable for opportunistic applications.

Turn-key Infrastructure

Proterra offers turn-key installation of your charging infrastructure to simplify your transition to an electric fleet.

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