Trial data show the vessel reduces carbon dioxide emissions by about 94 percent compared with diesel ferries. Officials say the project could represent a paradigm shift in how cities use waterways for public transport.

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Stockholm, built across 14 islands, is naturally suited to water transport, but diesel ferries currently generate nearly half of the region’s public transport emissions. The hydrofoil system lifts the boat above the water, reducing drag and allowing higher speeds and lower energy use on battery power alone. The ferry creates much smaller waves and lower noise levels than conventional vessels, reducing shoreline erosion and improving passenger comfort. Authorities are considering expanding the service to more routes after the successful pilot.