TSA electrifies Oslo with 240 motors for next generation of metro trains

TSA supplies key technology for CAF INNEO Metro Trains in Norway
Technology from Austria will power the next generation of metro trains in the Norwegian capital: Traktionssysteme Austria (TSA) will supply a total of 240 TME 45-16-4 electric motors for the new INNEO metro fleet in Oslo. The overall contract awarded to CAF initially covers 20 three-car metro trains, with an option for up to 90 additional units. The base contract volume for CAF exceeds € 150 million and could increase significantly through optional orders.

“With our energy-efficient motors, we are making a direct contribution to environmentally friendly public transportation in Oslo,” said Robert Tencl, CEO of TSA. “Beginning in 2026, TSA technology will help transport thousands of passengers every day reliably and quietly – even under the toughest Scandinavian weather conditions – as the new metro trains gradually enter service.”

The new INNEO Metro Trains and their core technology by TSA
The new three-car metro trains are based on the modular INNEO platform, specifically developed to meet the needs of modern urban transit systems. One of the key challenges is operation under extreme weather conditions: snow, ice, and temperatures far below freezing places exceptionally high demands on the entire vehicle system, particularly the traction equipment. The new trains are therefore specifically designed for operation during Scandinavian winters. One innovative feature of the new metro trains is the integration of onboard battery systems. In the event of a power outage, these systems enable the trains to continue independently to the next station. In addition, the vehicles are already prepared for future fully automated operation (GoA4 UTO – Unattended Train Operation), enabling driverless service in the long term.

A key engineering highlight of the TSA motor is its patented cooling concept. The optimized airflow design reduces thermal stress during operation – an important factor for the long-term durability and performance of the components. In addition, special emphasis was placed on minimizing noise emissions during development. The electric motor was specifically optimized for exceptionally quiet operation, a major advantage in urban environments.

Oslo metro modernization: A new generation for a growing city
Oslo is considered one of Europe’s fastest growing and most dynamic capitals, and with that growth comes increasing demand for efficient public transportation. The existing metro fleet is therefore being gradually replaced with modern, high-performance vehicles designed to meet rising capacity requirements and ambitious environmental standards.

The new trains will operate across the entire metro network of the Norwegian capital, a system that includes both underground city tunnels and above-ground sections, creating highly diverse technical and operational requirements. Today, Oslo’s metro network (T-Bane) spans more than 85 kilometers across six lines and is one of the city’s most important modes of transportation. The new vehicles will also play a key role in the planned expansion of the network, particularly the new Fornebu Line, which will add approximately 7.7 kilometers of track and six stations beginning in 2027, creating additional transport capacity for the growing metropolitan area.

Strong Partnership: Longstanding Cooperation with CAF
This order is another example of the successful and long-standing partnership between Traktionssysteme Austria and CAF, one of the world’s leading rail vehicle manufacturers. The two companies have worked together for more than 20 years and have jointly delivered numerous international rail projects.