In year 1800 Volta discovered the electrochemical cell, the battery. During the first 200 years of battery development many small steps were taken but it was not until recently that Lithium was curbed into a useful combination of metal, ion and electrolyte that allowed a sustainable rechargeable battery.
The energy electrochemical potential is almost 3 volts and the Lithium element is the lightest metal with a mass of 7 grams per mole. This makes Lithium particularly suitable as battery for vehicles.
In 2009 Volvo launched the 7700 Hybrid Bus. It was probably the first vehicle in serial production using the new battery technology. It has become a big success.
The Volvo Hybrid bus range now come in several versions:
7900 Euro VI Hybrid
7900 Euro VI Articulated Hybrid
B5LH (chassis for double decker’s)
B5RLEH (or Euro V Global Hybrid) for international markets
The Hybrid Buses offers superior cost efficiency over the life time in combination with outstanding environmental performance.
The 31st of December 2013 Volvo became the first Bus manufacturer to make hybrid buses the base line for European low floor city buses. This means that the hybrid drive is no longer optional.
Once the hybrid drive is on-board, for buses in city operation it makes sense to charge from the electric grid when you get the opportunity (so called opportunity charging).
In October at IAA, Volvo launched the Volvo 7900 Electric Hybrid. We are immensely proud to once more be first out with a completely new and ground breaking technology. It combines the best of two worlds “it is an electric bus where noise free and clean drive is required and a hybrid bus where performance is demanded”.
The new bus is delivered in a package containing much more than “just” a bus. We already have assignments from a number of cities to deliver complete systems. We are certain that this once more will become a sucess and we are prepared to share a risk. We therefore offer solutions that makes it easy for the users to realize the implementation.
A typical delivery contains:
~20 Electric Hybrid Buses for one or two city bus routes (by availability or rent per km)
~4-6 opportunity charging stations for terminals
20 low power connections to the electric grid for the depot
Service and support for workshop, parts, battery, fleet and vehicle management systems
Zone management for zero emissions or safety
Project support or lead for implementation