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Heliox Fast Charge Systems to power Sales-Lentz` new fleet of Volvo full electric buses, as the City of Differdange sees their green policy for sustainable mobility implemented.

Heliox Volvo Bus Sales Lentz 1024x784

Best, The Netherlands – Heliox has received the order to supply and install three Heliox Fast Charge Systems with OppCharge open interface by Sales-Lentz. End of route stations will be delivered Q2 2017, with one of the systems to be located at Sales Lentz’ depot. Volvo will deliver 4 full electric buses to Sales Lentz. “With this new efficient technology developed by Volvo, Sales-Lentz promotes the ambition of the City of Differdange to build a sustainable change for the transportation of persons and improve the quality of life for citizens. Change is the parent of progress”, says Wolfgang Schroeder, Managing Director, Sales-Lentz Autocars. “Engaged for many years, we have implemented an ambitious plan to sustainably envisage our city. Called "Differdangechange", we want to rethink the effectiveness of all our actions, particularly our city public transport "Diffbus" offered for free to all citizens and visitors to Differdange We are proud that our City-bus can be continued in a pioneering system and participate to an exemplarity in Luxembourg, together with its stakeholders, for preserve our living city and our environment”, says Roberto Traversini, Mayor of the city of Differdange.

“Electric bus systems are a cost-efficient solution for cities to reduce the problems of poor air quality and noise. Emission-free, silent buses also open up entirely new possibilities for urban planning”, says Håkan Agnevall, President Volvo Buses.

This project marks for Heliox as global market leader in charge systems within public transport, mining and port equipment the start of cooperation with Volvo bus and operations in Luxembourg.  We are proud to have found these strong partners for this project where our vision of an electric mobility future, is based upon solid quality, high capacity and efficient charging is shared.

The buses will be charged with opportunity charging (fast charging at end stops). To facilitate the introduction of electric bus systems in European cities, Volvo and Heliox together with several other manufacturers of buses and charging infrastructure agreed this spring to an open standard interface between electric buses and chargers. The OppCharge system includes automatic contacting by a pantograph, wireless communication, contacting plates and infrastructure equipment that automatically contacts vehicles with a pantograph. Since the equipment features standardised open architecture, every city is able to make its own individual choice of charging infrastructure supplier. This also means that the same charging stations can be used by electrified buses of many different makes

About Heliox Fast Charge Systems

  • Global market leader with largest installed base in Megawatt
  • Unique combination of depot charging systems from 25 to 150kW and Opportunity Charging with charging power up to 450kW.
  • Designed for high efficiency and robustness, TüV, CE certified series production.
  • Member of European Standardisation Initiative of Charge Infrastructure and bus manufacturers for interoperability, following IEC 61851, the international standard for fast charging of electric vehicles.

Volvo 7900 Electric

  • All-electric two-axle 12-metre long city bus with low floor and three doors.
  • 80 % lower energy consumption than a corresponding diesel bus.
  • Quiet, emission-free operation.
  • Equipped with an electric motor and lithium ion batteries.
  • The batteries can be charged at the end stops in three to six minutes.
  • Bright and airy interior.
  • 85 passengers.
    *Recharging time depends on topography, load and climate conditions.


  • Open interface between charging station and vehicle.
  • Offering charging power up to 450 kW.
  • Charging takes 3 to 6 minutes.
  • Inverted pantograph enables use of a low-cost and low weight interface on roof of the bus.
  • Conductive static charging with pantograph where communication between bus and charging station is done via WiFi.

About Heliox

Heliox is the global market leader in fast charge systems within public transport, mining and port equipment. Their high quality and high efficient chargers enables their customers to improve their performance while lowering environmental impact. Heliox operates on a global level from our head office based in Best the Netherlands.

About Differdange

Differdange (Lux.: Déifferdeng) is the third largest city in south-western Luxembourg. Differdange is an industrial town that was and still is home to much of Luxembourg's steel production, and lies near the borders of Belgium and France. Other towns within the commune include Lasauvage, Niederkorn, and Oberkorn. Differdange Castle is located on a hill in the centre of the town. Its earlier fortified castle dates back to around 1310. Differdange is home to a major steel production site of Arcelor-Mittal, Miami University's Dolibois European Center, the Centre for Population, Poverty and Public Policy Studies (CEPS/INSTEAD), the start-up creative hub 1535deg, the new international school and LUNEX University of health, sports, therapy and preventive medicine.

About Sales Lentz

Our leading urban mobility brand for passenger transport and journeys by car, bus or mini-van; a service for the public, private, business or leisure customer. Sales-Lentz is a major player in the field of passenger transport, in Luxembourg as well as the Greater Region. Its impressive fleet of 500 vehicles enables it to meet all types of transportation requirements, from the most straightforward personal mobility request to organised trips as well as transport for the public, schools, events or even group travel. Sales-Lentz is actively involved in protecting the environment by purchasing vehicles which use renewable energy or compensating CO2 emissions with the aim of becoming a climate neutral company. Providing products which deliver shared value such as on-demand flexible transport, as well as night shuttle buses, demonstrates the company’s innovative spirit and its commitment to sustainable development. 

About Volvo

Volvo Buses is one of the world’s leading bus manufacturers, with a strong focus on vehicles and systems for long-term sustainable public transport Volvo Buses is part of Volvo Group, one of the world’s leading manufacturers of trucks, buses and construction machines as well as drive systems for marine and industrial applications. For more information visit