Switzerland: Launches Procurement of 55 New-Generation Hybrid Locomotives

SBB Cargo Switzerland has initiated the procurement process for new-generation hybrid shunting locomotives at the end of September 2025, planning to purchase up to 55 units. Equipped with pantographs and batteries, these locomotives adopt a "catenary + battery" dual-power mode and will replace the existing Am 843 diesel locomotives, a key step toward achieving its 2040 net-zero emission target.

Currently, the Am 843 diesel locomotives account for over half of SBB Cargo's direct carbon dioxide emissions. The new-generation locomotives, however, can operate on power from the grid in catenary-equipped sections and run independently on batteries in non-electrified sidings. It is estimated that direct emissions will be reduced by more than 60% after replacement.

This procurement adopts a non-public bidding model, and SBB Cargo has directly contacted well-known rail vehicle suppliers. This is because the company is not subject to Switzerland's public procurement laws and can directly engage with known suppliers. The procurement goal is to replace a variety of old locomotives through a standardized vehicle platform. It is expected that the supplier will be confirmed in the autumn of 2026, the first locomotive will be delivered in 2029, full delivery will be completed in phases from 2030 to 2032, and the full replacement of the Am 843 locomotives will be achieved in early 2030.

The new locomotives will not only cover shunting operations and short-haul freight transport (especially for less-than-carload freight), but also be equipped with the latest safety systems and reserve adaptation space for digital automatic couplers. They feature energy efficiency, flexibility and future-oriented design, with a focus on stronger power and multi-scenario adaptability to meet the needs of heavy-duty operations. Nevertheless, the mature Eem 923 light shunting locomotives will remain in service for light-load distribution and shunting tasks, with a service life of at least until 2040.

According to SBB Cargo's engineering analysis, medium-capacity batteries can meet the needs of most operating scenarios, and only in very few cases will it be necessary to stop for charging or take additional measures. Furthermore, this procurement is part of SBB Cargo's comprehensive update of its vehicle fleet. Prior to this, the company had already ordered Shinkansen locomotives and standard freight cars, aiming to support the development of rail freight business through a modern and efficient fleet and achieve the green upgrading of shunting locomotives.