Swiss rolling stock manufacturer Stadler has agreed to supply 18 two-car units of its new WINK locomotive to Arriva Netherlands as part of a contract valued at approximately €170m.

The 55.5m-long, 2.82m-wide and 4.12m-high WINK train carries a central ‘PowerPack’ unit, which contains components for energy generation, traction elements and auxiliary systems.

Stadler’s new trains were initially designed as bi-modal two-car multiple units and are powered by a Deutz diesel engine fuelled with hydrogenated vegetable oil (HVO).

"The vehicles will switch to a zero-emissions operational configuration after the partial electrification of the Leeuwarden-Groningen route, which is slated for completion by 2025."

They also have batteries on-board that are capable of storing regenerated braking energy, which allows the diesel engines to switch off when the trains are at a standstill for prolonged periods in stations.

Stadler also noted that the WINK vehicles are to be deployed as part of the contract won by Arriva to operate rail services on the Leeuwarden-Groningen route, as well as other lines in the Friesland and Groningen provinces of the northern Netherlands beginning 2020.

The vehicles will switch to a zero-emissions operational configuration after the partial electrification of the Leeuwarden-Groningen route, which is slated for completion by 2025.

The diesel engines will be replaced with batteries and the trains will then run on a 1.5kV direct current, while making use of the energy stored in the batteries during transit along the non-electrified parts of the route.

In addition to the supply of the new bi-modal WINK trains, Arriva’s latest order covers the future conversion of the vehicles for zero-emissions operation.

Stadler will also upgrade the company’s existing 51 GTW units with a new passenger information system and battery packs to facilitate the storage of braking energy.

The 135-seat trains are capable of reaching a maximum speed of 140km per hour with maximum traction of 1000kW.

They are expected to be put into commercial service in 2020.