SFK Takes Delivery of Electric Ferry outfitted with Green Orca Battery System

Dutch marine battery system supplier EST-Floattech has delivered 1092kWh of battery capacity for new, full-electric ferry Wellingdorf in a contract with system integrator Holland Ship Electric. The zero-emission vessel, the fifth in a series of six hybrid and full-electric vessels for Kiel-based tug and ferry operator SFK, was designed and built by Holland Shipyards Group. The last (hybrid) vessel ‘Schilksee’ is expected to be delivered early 2026.
SFK Takes Delivery of Electric Ferry outfitted with Green Orca Battery System
Courtesy of EST-Floattech

Earlier this year Holland Shipyards Group, in collaboration with Holland Ship Electric and EST-Floattech, delivered the hybrid ferries Friedrichsort, Gaarden and WIK. The series of six also includes the emission-free passenger ferry Dürstenbrook and is part of SFK’s fleet renewal plan focusing on lower environmental impact and upgraded services. This plan is tied to the City of Kiel’s environmental goal of being CO2-neutral by 2050.

In turn, Germany’s Federal Ministry of Transport and Digital Infrastructure (BMDV) contributed about 15 percent to the overall construction cost as part of Germany’s Clean Air program.

EST-Floattech is very proud to be part of these initiatives and continues to strive towards its goal of zero-emission shipping.


The Wellingdorf measures 24.7 x 7.2 m and can transport 140 pedestrians and 60 cyclists. Due to the split battery system, the vessel gets redundancies and has no back-up power provided by a diesel engine. In addition, the vessel also boasts an automated, electric-hydraulic mooring system. While moored, the propulsion system doesn’t need power, resulting in even lower energy consumption. Last, 20 solar panels are installed on its roof providing the onboard power supply network.


Baterías con premio en la gran feria europea del almacenamiento de energía
El jurado de la feria ees (la gran feria europea de las baterías y los sistemas acumuladores de energía) ya ha seleccionado los productos y soluciones innovadoras que aspiran, como finalistas, al gran premio ees 2021. Independientemente de cuál o cuáles sean las candidaturas ganadoras, la sola inclusión en este exquisito grupo VIP constituye todo un éxito para las empresas. A continuación, los diez finalistas 2021 de los ees Award (ees es una de las cuatro ferias que integran el gran evento anual europeo del sector de la energía, The smarter E).