A compact but powerful solution
The mtu Series 956 genset unit is an imposing sight, standing at 3 m high, 5 m long and 2 m wide and weighing in at 21.5 tonnes. “Sure, it's a huge engine, but in terms of the output it's capable of it's pretty compact,” points out Giovanni Coiro, Sales Manager Power Generation at Rolls-Royce Power Systems.
That output is 5,000 kW. Spread over 16 cylinders, the 956 engine boasts an incredible power-to-weight ratio. “Exactly the reason we want such engines in our emergency generator sets,” adds Gerald Leutgeb, head of the Electrical Plant division of Wiener Linien, Vienna's public transport operator.
Five mtu engines are already in service in the engine rooms deep in the belly of the Wiener Linien. This sixth unit is already en route to Vienna and will be ready for service in late 2022. Having left the Rolls-Royce factory in Friedrichshafen, the engine will visit the site of mtu sales partner K&W Drive Systems, who will be working on the final integration with Austrian electric power generation expert, ELIN.