Modern charging infra for e-buses in the canton of Zurich in Switzerland: Rolf Stutz AG relies on Kempower
Rolf Stutz AG, a PostBus operator within the Zurich Transport Network (ZVV), has equipped its new electric bus depot with cutting-edge charging infrastructure from the Finnish DC fast-charging manufacturer Kempower. The new charging system enables simultaneous charging of up to twelve electric buses, providing a total charging capacity of 1.2 megawatts – a significant step towards an emission-free fleet. The installation was carried out by BIBUS AG in collaboration with Elektro Biderbost AG.
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. According to the Swiss Federal Office for the Environment, approximately 34% of the country’s CO₂ emissions come from transport. Projects like this demonstrate that sustainable public transport is achievable even in structurally challenging regions, provided that intelligent and adaptable charging infrastructure is available.
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.
Across the bus depot, which offered only limited space for the installation, 1.1 megawatts of charging power were distributed among twelve charging points, comparable to the electricity consumption of a small neighborhood with several hundred households. The compact Kempower Control Units were mounted on overhead beams in a space-saving manner. Their integrated cable reel mechanism ensures easy handling during daily operations. The modular Power Units each deliver up to 600 kW and can supply up to eight charging points simultaneously, each with a power capacity of up to 160kW.
The system is supported by Kempower’s EV charging management software ChargEye, which enables operators on-site to monitor the charging system in real-time, diagnose and resolve issues quickly, and prevent downtime of the chargers, which could disrupt business operations.
“We’re 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-designed setup, the new depot is optimally equipped for electric bus operations – dynamic, modular, and scalable,” explains Dirk Werner, Product Manager E-Mobility & Energy at BIBUS AG.
About BIBUS AG
For over 75 years, BIBUS AG has been your reliable partner for technical solutions. We supply products in drive technology, pneumatics, fluid technology, electrical engineering, automation, and e-mobility, and operate internationally with multiple subsidiaries across Europe and Asia. Our solutions are used in mechanical and equipment engineering, industrial automation, rail technology, and medical technology. With long-standing partnerships and a global supplier network, we ensure smooth, on-time procurement at competitive conditions. Because we provide everything from a single source, you can reduce your number of suppliers. Our extensive, well-stocked warehouse in Fehraltorf allows us to meet your specific needs for stock and availability, helping you minimize capital tie-up. https://technology.bibus.com
About Rolf Stutz AG
The story began in 1950 with the purchase of the first bus. Rolf Stutz founded Rolf Stutz AG and operated a route from Jonen to Birmensdorf. While the buses have become more modern, the passion for tradition remains. Each year, over 4.2 million passengers travel more than 2.9 million kilometers with us, along 383 curves and 133 stops. More than 100 employees ensure that 36 vehicles on 15 routes from 2 locations achieve one goal: To transport you safely and comfortably from A to B every day. https://rolfstutzag.ch/
About Kempower
We design and manufacture reliable and user-friendly DC fast-charging solutions for electric vehicles. Our vision is to create the world’s most desired EV charging solutions for everyone, everywhere. Our product development and production are based in Finland and in the U.S., with the majority of our materials and components sourced locally. We focus on all areas of e-mobility, from electric cars, trucks, and buses to machines and marine. Our modular and scalable charging system and world-class software are designed by EV drivers for EV drivers, enabling the best user experience for our customers around the world. Kempower is listed on the Main Market of Nasdaq Helsinki. www.kempower.com
Kempower media:
Paula Savonen, VP, Communications, Kempower
+358 29 002 1900
