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Thursday, October 17, 2019 

The innovative 'Elektra' push boat, ordered by Berlin harbour warehousing and logistics company Behala and developed at the Department of Design and Operation of Maritime Systems at the Technical University of Berlin, will be equipped with rudderpropellers from Schottel.

The hybrid canal push boat is powered by a combination of fuel cells, batteries and an electric motor. The Elektra, currently under construction at the Hermann Barthel shipyard in Derben, Germany, is claimed to be the first emission-free push boat worldwide.

"The Elektra shows what is possible. It demonstrates – not only as a push boat, but in particular as a model for electrical energy concepts for many maritime areas – that an energy turnaround is quite possible. We are pleased to have Schottel by our side as an expert in the field of propulsion Technology," said Prof Dr-Ing Gerd Holbach, Project Manager at TU Berlin for the Department of Design and Operation of Maritime Systems.

The 20m long and 8.2m wide canal push boat will be equipped with two Schottel Rudderpropellers type SRP 100 with nozzle (200 kW each) and a Schottel steering and control system. A service speed of 10 km/h is reached and a maximum thrust load of 1,400 tonnes is available.

The vessel will use fuel cell technology for the basic energy supply of the power train and for the shipboard electrical system. At peak loads, additional energy is provided by batteries. The hydrogen supplied to the fuel cell is generated via electrolysis from green electricity generated by wind power.

It is planned that the Elektra will first be tested in Berlin in 2020 and, starting in 2022, between Berlin and Hamburg. From 2025 onwards, the vessel will operate commercially for freight transport between Berlin and Hamburg. From the first day of testing in Berlin, the Elektra will be completely emission and pollutant-free.

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