A Swedish hydrofoil ferry seeks to electrify the waterways
Many cities around the world see clean and efficient public transport as a crucial way to lower their carbon emissions
STOCKHOLM — Many cities around the world see clean and efficient public transport as a crucial way to lower their carbon emissions. For cities with waterways, a high-tech ferry in Sweden could soon set a new standard.
Speeding through Stockholm’s archipelago, electric boat maker Candela’s new P-12 vessel barely makes a sound as it glides over a meter (3 feet) above the water. Its developers hope the ferry, which was unveiled this week, will yield a new era of waterborne public transport.
“This is a real leap forward,” said Erik Eklund, who is in charge of the commercial vessel division at Candela. “The energy savings we get by going airborne on the foils give us the speed and range we need to make this work on batteries.”
The vessel is designed to carry 30 passengers at a maximum speed of 30 knots (56 kph or 35 mph) — considerably faster than other electric passenger ferries. It achieves this with carbon fiber hydrofoil wings that lift the boat out of the water, reducing drag.
Candela says its technology reduces the energy per passenger-kilometer by 95% compared with the diesel ships that are currently transporting passengers across the picturesque Stockholm archipelago, which is made up of tens of thousands of islands and skerries stretching out into the Baltic Sea.
An added benefit is that the vessel is exempt from the 12-knot speed limit in Stockholm because it leaves no wake — waves made by a boat’s displacement through water that increase with speed and could swamp other vessels or erode the shoreline.
The P-12 is still in testing but is set to enter service in July between the Stockholm suburb of
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