Gothenburg adds another electric ferry powered by EST-Floattech battery system

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Västtrafik, the organisation responsible for public transport in the Västra Götaland region, Sweden, has taken delivery of a fourth electric hybrid ferry powered by an EST-Floattech battery system. Built by Työvene in Finland, the Eloise is a 33-metre, double-ended commuter ferry designed to carry up to 298 passengers and 80 bicycles at speeds of up to 11 knots.

The EST-Floattech installation is based on their flagship Green Orca 1050 High Energy Battery System (or ESS: Energy Storage System). This uses Lithium Polymer NMC cells which deliver exceptional cycle life and thermal performance together with a high discharge rate capability. EST-Floattech’s in-house battery management system (BMS) forms the basis of the Green Orca High Energy Module, a technology which has proven itself for more than a decade.

Antti Vikainen, project manager at Uudenkaupungin Työvene OY and overseeing the build, commented: ”We are happy to have partnered with EST-Floattech as a supplier of one of the key components for Eloise. The support we received in addition to the delivery and commissioning of the battery system proved valuable, particularly when determining the safety requirements for the battery installation.

“The vessel itself is already a proven design that has evolved from a diesel-electric powered ferry into a battery hybrid that is able to operate almost exclusively on stored electric power for its designed application.”

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