Operation and Vehicle Optimisation

PostBus consumes about 42 million litres of diesel annually in Switzerland, which is why it supports easing the burden on the environment from fuel emissions and promotes the reduction of fuel consumption. Examples of this include:

  • Pioneering work with carbon-neutral fuel cell Postbuses
  • Procurement of hybrid vehicles
  • Efficient turnaround cycles
  • Training of drivers in eco-drive techniques
  • Support for drivers through regular monitoring by eco-coaches

Fuel consumption of PostBus Switzerland Ltd

2010 2013
Diesel: 39 600 000 Liter 42 000 000 Liter
Natural gas: 70 300 kilograms 44 000 kilograms
Petrol: 8 000 litres 2 400 litres
Km 103 200 000 km 107 600 000 km

CO 2 performance of PostBus (carbon footprint in t CO 2 equivalent)

2013: 107 600 000 km   136 619 t CO 2
2012: 107 000 000 km 135 331 t CO 2
2011: 104 300 000 km 130 353 t CO 2
2010: 103 200 00 km 127 076 t CO 2

Emission standards

Since January 2014, only vehicles that meet the emission standard EURO 6 can be operated in Switzerland. In mid-2014, the proportion of Postbuses that meet the strict emission standards Euro 5, EEV or Euro 6 is already 44% of the total fleet. The older vehicles that do not meet modern emission standards are primarily replacement vehicles and are mainly used in exceptional situations. The majority of passenger services are provided with vehicles that meet at least Euro 3.

Accompanying measures

Since the end of 2013, 16 eco-coaches have been at work accompanying drivers in their everyday work, analysing their driving style together with them, and making suggestions for improvement on the road. Before they can receive coaching, drivers must have already taken an Eco-Drive course and be familiar with the principles of eco-driving. The Eco-Drive courses are offered by the PostBus driving school, and almost all drivers have attended this one-day course in the last five years.

As a further measure, fuel consumption figures are evaluated periodically.  To encourage positive consumption trends, the evaluations are regularly presented to staff, and a portion of the savings are passed on to the drivers.

The first Swiss hydrogen filling station

The production process involves using an electrolyser to turn water and electricity into hydrogen. When electricity is passed through water, the water splits into its components, hydrogen and oxygen. Two high-pressure compressors pressurise the hydrogen to at least 410 bar. It is then stored in high-pressure accumulators. The hydrogen can eventually be used to fill the fuel cell postbuses fully automatically at the filling pump at a pressure of up to 350 bar. To power the vehicles the hydrogen in the fuel cells is turned back into electricity by combining it with oxygen in a controlled manner. The function of the hydrogen is to store electricity.

Electricity from renewable energy sources

100% of the hydrogen used to fill the fuel cell postbuses is obtained from renewable energy sources such as hydroelectricity, solar power, wind power and biomass energy.