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Stadler's Tri-Mode Marvel: Class 93 Locomotive Gears Up for UK Rail Network

Stadler's Tri-Mode Marvel: Class 93 Locomotive Gears Up for UK Rail Network
photo: Rail Operations Group/Stadler's Tri-Mode Marvel: Class 93 Locomotive Gears Up for UK Rail Network
17 / 04 / 2023

Stadler’s facilities in Valencia, Spain, have completed testing of the first new tri-mode Class 93 locomotive for the Rail Operations Group. Once the necessary acceptance procedures have been completed the locomotive will be transported to the UK for further testing with entry into service a few months later. It is a big moment for the UK rail network.

Testing of the locomotives began in July 2022 at Stadler's testing facility in Valencia, Spain. Rail Operation Group will receive 10 locomotives for use in the UK, with 30 locomotives ordered overall.

Commenting on the locomotives, David Burley, Chief Executive Officer of Rail Operations Group, said, “The class 93 fleet with its array of green credentials, will allow us to lead the way in supporting the rail industry in the delivery of its decarbonisation targets. Further, with its impressive state-of-the-art specification, the class 93s also allow us to diversify and develop new markets whilst modernising many aspects of UK train operations.”

The speed of the Class 93 locomotives will go up by 10 mph compared to the Class 68s and Class 88s. They will be able to run on electrified and non-electrified lines with three different power sources. The electric mode will allow them to run on 25kV AC overhead lines with power up to 4,600 kW. The diesel Stage V 900 kW-engine or two Lithium Titanate Oxide (LTO) traction battery packs will be used on non-electrified lines. The advantage is that the locomotives can work on battery mode alone, providing carbon-free operations. It will reduce CO2 emissions for rail freight and potential passenger transport services.

Another plus is minimising energy consumption through efficiency features such as a high-efficiency transformer and AC traction system with IGBT technology and one inverter per axle. It will provide better adhesion control, reduce energy consumption, and increase reliability. Kinetic energy is recovered during braking.