Electric bus charging

Bus operators, in conjunction with local authorities and regulators, have been trialling low and zero emission buses over the last few years.

The UK is now in a position where both single and double deck electric buses are viable for many routes, particularly those in urban and ultra-urban environments.

Developing electrical bus charging infrastructure is complex, with multiple options such as:

  • Classic charging - Multi MVA connections are being used but are costly for the operators, time consuming and causes disruption to the communities near bus garages
  • Timed connections are being used to reduce costs, with less disruption reduced timescales
  • Pantograph - opportunity charging solutions including the buses have only been trialled in Manchester with Volvo and require loss of risk mitigation strategies
  • Co-location of batteries being considered with some small projects and could be used for stop gaps once an initial connection has been made

Electric bus charging involves several key issues:


  • Electric buses can cost twice as much as conventional buses
  • Electrification requires additional support from local authorities and grants
  • Charging infrastructure is regarded as expensive
  • Route contracts are typically 5-7years which is not long enough to fund 20 - 40 year asset


  • AC or DC charging
  • Some electric bus designs require significantly more power than others
  • Format War – Opportunity charging or charge at bus garage?
  • Bus depot supplied at Low Voltage or High Voltage?


  • Night buses have little time to charge and may require additional buses or charging at higher power
  • Electric buses require 22KW, 44KW or 100KW charging and it can be difficult to manage multiple options in space-constrained garages
  • Bus garage layout is constrained and not designed for charging infrastructure
  • Bus operators and manufacturers have little knowledge of electricity infrastructure and delivering large infrastructure projects
  • Bus garages often have a minimal electricity connection, typically a 200 - 300 Amp supply

Bus electrification – our solutions

We offer a range of solutions via our Power as a Service offer:

Consulting & Design: Strategy development, site specific solution development including design, smart charging, renewables and battery storage integration

Build: Programme management of DNO interface, Independent Connection Providers, HV and LV networks, chargers and commissioning

Operations, Inspections and Maintenance: Private HV and LV networks EV chargers

Asset financing: Fully funded solution including, DNO connection, battery storage (if relevant), high voltage, low voltage networks and chargers

Contact us or read more about electric charging for fleet vehicles.

Book an appointment to discuss your project