Demystifying School Bus Electrification in Canada
Busting myths on maintenance, range, vehicle-to-grid and more!

Published April 18 2023
The number of electric school buses (ESBs) on the road are increasing each year across Canada, but there remain many myths around their operation – from driving and repairing to charging and powering – that continue to delay the transition towards zero-emission school transportation.
On March 20, 2023, the Canadian Electric School Bus Alliance (CESBA) hosted a webinar on Demystifying the Operation of Electric School Buses with experts from Propulsion Québec, Highland Electric Fleets and Dunsky Energy+Climate. The session covered topics of ESB characteristics, requirements for charging equipment, the range and efficiency of ESBs in various climates, the impacts of ESBs on power supply, and the potential for vehicle-to-grid technology. This is a summary of the key points and takeaways from this event.
State of School Bus Electrification
Currently, across Canada, there are between 45,000 and 50,000 school buses, with 70% of those still running on diesel. Prince Edward Island is currently leading the way with 25% of its fleet electrified, with 82 ESBs out of a fleet of three-hundred-twenty-two. British Columbia and Québec follow with about 5% of their respective fleets electrified, although they’re expecting hundreds of more ESBs in the coming years. Ontario and New Brunswick are respectively at 0.1% and 0.08%, while Nova Scotia has 0 ESBs out of its fleet of 1,300 buses.
There is hesitation amongst fleet operators when it comes to the adoption of ESBs, such as the concern that they aren’t reliable or don’t last as long as diesel counterparts. Some worry that planning for charging needs is highly complex and that the required charging infrastructure is challenging to choose and implement. There is also concern that ESBs don’t have enough range for regular school trips, or that the performance range is easily affected by road (e.g. uphill driving) and extreme weather conditions. Finally, there is worry that the current power supply isn’t enough for the increased demand in energy that would come from widespread adoption of ESBs.
- Education is a key strategy to help overcome non-technical barriers, with more awareness and education for fleet managers, drivers, users, and everyone else involved in ESBs.
- Financial incentives are important to support ESB procurement, as costs continue to be a major barrier. Costs are expected to come down over time, in which such incentives may be phased out. However, right now, they are essential.
- V2G is another opportunity to help overcome barriers, as it can help improve the business case and get utilities on-board with ESBs.
- Finally, there must be improvements to the supply chain to ensure demand for ESBs is being met.
Planning
- Selecting your preferred bus, charger and software suppliers
- Implement a pilot project or program and phase-in ESBs
- Work to adapt buildings and infrastructure to better support ESB charging and maintenance
- Continue testing and adapting your approach
For more information on the planning process behind electrifying a school bus fleet, consult this guide from Propulsion Québec.
Driving and Repairing
There are approximately nine different models of ESBs from about five manufacturers available across Canada right now.
You should assess seat capacity, battery range, charging options available, maintenance requirements, and more. Taking into account the vehicle plus the charging system and how it will be operated as a whole system.
Anywhere between 160 and 240 kilometers.
The range of an ESB can be influenced by type of ESB, size of battery, age of battery, efficiency, heating/cooling systems, temperature, and more.
ESBs are composed of an electric motor, converter, batteries, transmission and generator, a vehicle control system, and modules.
ESBs are supposed to last longer than diesel buses, however, batteries do degrade over time. Additionally, we don’t have any ESBs on the road right now that are older than 12 years, so it is difficult to be sure about an estimated lifespan at this point.
ESBs are not more difficult to repair and maintain than diesel buses, but they are more specific. They involve new electronic systems and softwares inside the bus, so the maintenance team needs additional skills, such as managing the wirings and debugging the bus using software through the on-board computer. Skill requirements for looking after charging infrastructure should also be factored in.
Charging and Powering
Most commonly, Level 2 and Level 3 chargers. Level 2 is recognized as cheaper, but slower, whereas Level 3 is more expensive and faster.
Approximately three hours to reach a nearly full charge.
A bi-directional flow of power between EVs/ESBs and the energy grid. This technology enables flexibility in when ESB charging takes place, and when the energy stored in the ESB batteries is needed to supplement energy capacity on the grid, such as during power outages or heat waves.
Applying V2G technology requires that V2G is in demand by utility, that the appropriate technological and regulatory infrastructure is in place, and that an ESB is grid connected. Currently, these conditions are not available everywhere in Canada, but could be.
Dunsky Energy+Climate has been commissioned by CESBA to develop a technical brief on the benefits of V2G and its potential in select provinces that could benefit the most.
Many school bus drivers, especially those in rural areas, live far from the bus depot and prefer to keep their school buses at their homes. Enabling these bus drivers to charge ESBs at their homes has incredible potential for supporting the transition to ESBs across the country. The Government of Prince Edward Island is currently leading a pilot project to test the installation of charging stations at selected bus drivers’ homes.
For more information about the key steps to transitioning to ESBs, we encourage you to get in touch with our speakers:
- Stéphane Pascalon, Senior Project Officer at Propulsion Québec (stephane.pascalon@propulsionquebec.com)
- Brad Laporte, Canadian Regional Business Manager at Highland Electric Fleets (brad@highlandfleets.com)
- Jeff Turner, Director of Clean Mobility at Dunsky Energy+Climate (jeff.turner@dunsky.com)

Nicole Roach
Sustainable Transportation Manager
Green Communities Canada