Rail Operations UK acquires 30 tri-mode locomotives

tri-mode locomotivesStadler and Rail Operations Limited have signed a framework agreement for the supply of 30 Class 93 tri-mode locomotives, of which an initial batch of 10 locomotives are expected to be delivered in early 2023.

The British company says that the new locomotives, with modern specifications will allow the development of new markets and modernise the railway transport.

Class 93 is a Bo’Bo’ mixed-traffic locomotive based on Stadler’s Class 68 and Class 88 locomotives that have been operating successfully in the UK for some years. It is capable of reaching higher speed than the previous ones, from 110 mph (178 km/h) instead of 100mph (160 km/h).

Stadler’s first tri-mode locomotive has three different power sources. In electric mode, it is able to run on 25kV AC overhead lines with a power of 4,000 kW. In addition, the locomotive features a Caterpillar C32 engine and Lithium Titanate Oxide (LTO) traction battery packs, allowing it to operate over non-electrified lines.

The diesel engine has a nominal power of 900 kW and meets EU 97/68 Stage V emission requirements.

The two LTO battery packs provide 400kW extra power to supplement the engine when the locomotive is running in diesel/battery hybrid mode as well as last mile carbon free shunting operation.

The contract for the procurement of the tri-mode locomotives will support rail decarbonisation requirements in the United Kingdom. The advanced locomotives will significantly reduce CO2 emissions for both rail freight as well as potential passenger transport services, underscoring Stadler’s green credentials and demonstrating its commitment to decarbonisation. “The rail industry has acted very positively in understanding its role in reducing carbon emissions and improving inner city air quality. The class 93 fleet with its array of green credentials, will allow us to lead the way in supporting the rail industry deliver its decarbonisation targets Karl Watts, Chief Executive Officer, Rail Operations (UK) Limited said.


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