Slovak Railways: Stadler KISS Trains Expand Bratislava-Zilina Line

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Introduction

Slovak Railways (ZSSK) has placed an order with Stadler for two additional KISS electric trains, expanding its existing fleet for the Bratislava-Zilina main line. The new trains, part of a project valued at approximately €100 million, are scheduled to enter service in the 2026/2027 timetable.

Project Details and Funding

The order for the two additional double-deck trains follows an option exercised under a contract established in April of this year. Funding for the project will primarily come from European sources through the Recovery and Resilience Plan (RRP).

Train Specifications and Features

Each KISS unit will have a minimum capacity of 611 seats, including 582 in first and second class and 29 folding seats. The trains are designed for a maximum operating speed of 160 km/h and incorporate energy-efficient features. They also include a low floor for easy access for all passengers and modern information systems, such as digital panels and audio announcements, to enhance passenger comfort and orientation.

Operational and Strategic Context

The KISS units have been in operation on the Bratislava–Nove Zamky and Bratislava–Trencin/Púchov lines. According to ZSSK CEO Peter Helexa, the renewal of the vehicle fleet is a key strategy. The addition of these new trains aims to increase passenger comfort and satisfaction while reducing energy consumption and emissions.

Stadler’s Involvement and Industry Context

Stadler Praha supervisory board chairman Zdenek Majer stated that the investment confirms the clear strategy of ZSSK and the Slovak Ministry of Transport to transform the Slovak railway into a modern transport system. Recently, the Berlin Transport Company (BVG) launched passenger operations with a new generation of Stadler metro trains to improve service stability. The inaugural journey of the first train in the JK series took place on the U2 line in Berlin on September 8, 2025.

Conclusion

The expansion of Slovak Railways’ fleet with additional KISS electric trains from Stadler, supported by European funding, is set to enhance passenger services on the Bratislava-Zilina line, with an expected service launch in the 2026/2027 timetable.

Company Summary

Slovak Railways (ZSSK): Slovakia’s national railway carrier, focused on modernizing its fleet and improving passenger services.

Stadler: A manufacturer of railway rolling stock, including trains and other vehicles.

Berlin Transport Company (BVG): The public transport company for Berlin.

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