London buses equiped with flywheels
Pilot project involving 6 buses. Expected fuel savings up to 30%. If successfull, implementation on all 4,000 companies fleet buses could be considered. In essence, rather than wasting kinetic energy as heat in breaks, it is transformed in kinetic energy of a rotating flywheel (‘mechanical battery as it were’). This energy again is used to bring a bus up to speed from standstil and thus the bus engine saves fuel. Return on investment with current high fuel prices estimated to be five years.
Discussion of application of flywheels in vehicles: