Electric School Buses Now Power Homes While Kids Are in Class

Imagine if school buses could do double duty: safely transporting students by day and powering neighborhoods by night. That future just became reality.

The Mobility House has launched Cascade EV Aggregator, a platform that turns electric vehicles into mobile power banks for the grid. The system works with everything from home chargers to entire fleets of electric school buses, letting them charge during off-peak hours and send power back when it's needed most.

The timing couldn't be better. Energy experts predict electric vehicle batteries in the US will store enough power to become the country's largest distributed energy resource within ten years. That's 4 terawatt hours of capacity that could stabilize the grid during peak demand.

Here's how it works in practice. When buses are parked at the depot after their routes, Cascade receives real-time signals from utilities about grid needs. The platform then coordinates with charging systems across thousands of sites, either pausing charging to reduce demand or sending stored battery power back to homes and businesses.

Schools in California, Massachusetts and New York are already using the technology with their electric bus fleets. Ernest Epley, Transportation Director at Fremont Unified School District, sees it as a win-win. His buses transport students safely during school hours, then generate revenue for the district while parked.

The platform handles both simple smart charging and advanced vehicle-to-grid technology. Smart charging shifts when buses power up to avoid expensive peak rates. Vehicle-to-grid goes further, actually exporting electricity from bus batteries back to the community.

The Ripple Effect

This innovation solves multiple challenges at once. Schools offset the higher upfront cost of electric buses through grid service payments. Utilities get flexible energy storage without building new infrastructure. Communities benefit from cleaner air around schools and more stable electricity during heat waves or other peak demand periods.

The technology also helps utilities manage the growing challenge of powering millions of electric vehicles without overwhelming the grid. By coordinating when and how vehicles charge, Cascade prevents bottlenecks while maximizing renewable energy use.

Every parked electric vehicle becomes a potential power station, turning what could be a grid strain into a solution.