Hybrid Buses

Oxford Bus Company aims to provide the best possible service to the people of Oxford whilst minimising our environmental impact on the historic city. 52 of our local buses use hybrid technology, one of the highest percentage of electric-hybrid buses in a bus fleet in the UK.

This has gone some way to helping the company reduce fuel consumption and CO2 emissions by as much as 39% in 2013/14.

New hybrid technology in the BROOKESbus

14 brand new hybrid buses have been added to our BROOKESbus fleet for the 2014/15 academic year. The buses are the very first of a new design by Alexander Dennis (who built the bodies for the 200-series Scanias). They are the first “Euro VI” buses for service in Oxford, and also the first roll-out of the Gyrodrive hybrid power system. 

All of this means that the power used and the exhaust emissions are as good as the electric hybrids in the fleet (both types in the 300 series) but the add-on cost is much lower. 

Gyrodrive – What is it and what does it do? 

This innovative system was developed in Oxfordshire by the Williams Formula 1 team. It is a Kinetic Energy Recovery System (KERS). When the bus brakes, normally the energy is lost as heat; this system “harvests” that energy and stores it in a flywheel, which runs at up to 36,000 rpm. When the driver accelerates, the system works in reverse, feeding energy into the traction motor. All of this reduces the work done by the engine, and fuel use is reduced by up to 25%. Watch the video below by GKN for more details.

How our BROOKESbus hybrid system works