Proterra

Proterra pioneered electric transit by deploying 1,000+ buses across 40+ US transit systems before filing Chapter 11 in 2023, a fleet 60% larger than the average competitor's. Despite bankruptcy, its battery technology found new life in successor entities, and its ZX5 model offers a 200-mile range, 20% better than any comparable diesel bus. Proterra proved heavy-duty electric vehicles can operate 90% cheaper per mile than fossil-fuel equivalents in real-world routes.