Zūm Launches Nation's Largest Bidirectional Electric School Bus Fleet in San Francisco

Event summary

  • Zūm will deploy 104 electric school buses with bidirectional charging in San Francisco by August 2026, expanding to 238 buses by 2027-2028.
  • The fleet will return approximately 3 gigawatt-hours of clean energy annually to the local grid, powering 1.2 million homes for 3-4 hours during peak demand.
  • Zūm's Connected Mobility Experience (CMX™) platform integrates electric vehicles, charging infrastructure, routing intelligence, and real-time operations.
  • The project is supported by grants and incentive programs from EPA Region 9, California Energy Commission, Bay Area Air Quality Management District, and PG&E.

The big picture

Zūm's deployment in San Francisco underscores the growing intersection of education, transportation, and energy sectors. The project aligns with broader trends toward electrification and grid resilience, positioning school buses as strategic distributed energy resources. With backing from major investors and regulatory support, Zūm is expanding its leadership in modern student mobility, potentially influencing national standards for sustainable transportation.

What we're watching

Scalability Challenges
Whether Zūm can sustain this pace of electrification across its 17-state footprint and 4,500 partner schools.
Regulatory Tailwinds
How state and federal incentives will shape the adoption of vehicle-to-grid (V2G) technologies in public transportation.
Operational Efficiency
The impact of Zūm's CMX platform on reducing transportation costs and improving on-time performance for school districts.