The MS Insel Mainau is a milestone in the history of Lake Constance shipping: As the first fully electric vessel operated by Bodensee-Schiffsbetriebe (BSB), it embodies sustainable mobility and technical innovation.
The modern catamaran was designed to be fully accessible and is equipped with a powerful 960 kWh battery—enough for a range of approximately 120 kilometers. A special highlight is the solar deck with bifacial solar cells that utilize both direct sunlight and reflected light. This allows the ship to generate up to 30% of its energy needs on its own while underway.
Since entering service in September 2022, the MS Insel Mainau has been operating regularly between Mainau Island, Unteruhldingen, and Meersburg—quietly, emission-free, and forward-thinking. With room for up to 300 passengers, the ship sets new standards in eco-friendly shipping.
For its innovative concept, the MS Insel Mainau was awarded the “Lake Constance Innovation Prize 2023” in the sustainability category. It symbolizes the beginning of a new era on Lake Constance: By 2035, the BSB plans to convert its entire fleet to environmentally friendly propulsion systems.
For more information, visit: MS Insel Mainau | BSB
Take the MS Insel Mainau to the island that gave it its name? Mainau Island – The Flower Island on Lake Constance | BSB
For more information on environmental protection at BSB: Environmental Protection Lake Constance | BS
