500,000 US school buses could become energy sources for utility grids if converted to EV, as demonstrated by Oakland's partnership with Zum.

500,000 US school buses, a major transportation system, could become a significant energy source for utility grids if converted to EV, like Oakland's school district. The absence of usage during peak evening energy demand hours makes the transition appealing. Zum, a company providing EV school buses, has partnered with Oakland to feed power stored in EV bus batteries back to the grid.