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Electric Buses Retired: Proterra's Collapse Leaves Airports Stranded
25 Dec, 2025
Summary
- Newark Airport retired its electric bus fleet after Proterra filed for bankruptcy.
- Exclusive Proterra parts made repairs impossible, sealing the buses' fate.
- Diesel and hybrid buses have returned to Newark Airport service.

Just over five years after unveiling the largest electric airport bus fleet on the east coast, officials at the Port Authority of New York and New Jersey have retired their 36 Proterra buses at Newark Liberty International Airport. These buses, operational for a mere three to four years, were taken out of service in 2023 following Proterra's bankruptcy filing in August 2023. The primary reason for their early retirement was the unavailability of proprietary parts, unique to Proterra, which prevented the Port Authority from performing necessary servicing and repairs.




