Modern charging infrastructure in the canton of Zurich in Switzerland: PostBus operator Rolf Stutz AG electrifies bus fleet with Kempower’s charging solution
The Swiss transport company Rolf Stutz AG, operating on behalf of the Zurich Transport Network (ZVV), has established a new electric bus depot equipped with state-of-the-art charging infrastructure from Kempower. The installation was carried out by BIBUS AG in collaboration with Elektro Biderbost AG. The new depot allows twelve electric buses to be charged simultaneously at twelve charging points, each with a capacity of up to 160 kilowatts. The total installed charging power amounts to 1.2 megawatts. With this move, Rolf Stutz AG is taking a significant step toward emission-free mobility.
Electrification of public transportation in rural areas
As a traditional family-run company, Rolf Stutz AG has been transporting people in Switzerland daily since 1950, particularly in rural regions where travel distances often make walking or cycling impractical. In these areas, sustainable mobility solutions are crucial. In Switzerland, around 34% of the country’s total CO₂ emissions come from the transport sector, according to the Swiss Federal Office for the Environment. Switching to electric vehicles is essential for achieving national and regional climate targets.
“With the new charging infrastructure, we are contributing to the decarbonization of the transport sector and are optimally prepared for the mobility of tomorrow. The charging system is not only powerful but also future-proof and scalable – that was particularly important to us because we always want to develop further,” says Patrick Stutz, Managing Director of Rolf Stutz AG.
High charging capacity in a compact space
Across the depot, a total of 1.2 megawatts of charging power is distributed among twelve charging points. This is comparable to the electricity demand of a small district with several hundred households.
Installing the twelve high-performance charging points was especially challenging due to the limited space, but the challenge was successfully met: the compact Kempower Control Units were mounted on crossbeams in a space-saving manner. Their integrated cable reel mechanism allows for easy handling during daily operations. Two modular Power Units each deliver up to 600 kW and can simultaneously supply up to eight charging points.
The system is complemented by the EV charging management software Charge Eye, which allows operators on site to efficiently monitor operations, precisely analyze faults, and quickly resolve issues.
“We are proud to have implemented a future-proof, high-performance charging infrastructure in a compact space for Rolf Stutz AG. Thanks to Kempower’s intelligent charging technology and the well-planned setup, the new depot is ideally equipped for electric bus operations – dynamic, modular, and scalable,” explains Dirk Werner, Product Manager E-Mobility & Energy at BIBUS AG.
Sustainable mobility requires strong infrastructure
With the successful implementation of this charging infrastructure project, Rolf Stutz AG sends a clear signal for sustainable public transport in rural areas. The successful project shows that electrification of public transport can be efficiently advanced, even in structurally challenging regions. What it takes is intelligent and scalable charging infrastructure. Kempower is thus laying the foundation for making the transportation transition a reality across the board.
