Candela is a Sweden-based start-up company on a mission to switch the world’s marine transport industry to electric power. Now, the company has announced its new hydrofoil boat, the Candela Seven, as the world’s first fully electric speedboat.
According to Candela, the biggest hurdle keeping the electric marine craft industry from reaching its full potential is the discrepancy between speed and range. Electric water-bound vehicles typically either have speed or range, but not both, because planing motor boat hulls need enormous amounts of energy to go fast. A standard 25-foot boat, for example, needs 15 times the amount of energy of a standard car. Building an electric boat with the capability to perform just as efficiently as a boat that uses fossil fuels with contemporary batteries poses the biggest challenge.
In order to reduce friction from the water, Candela uses submerged hydrofoils under the surface of the water. These wings provide enough lift at 17 knots to completely lift the boat’s hull out of the water, reducing energy use by as much as 80%. The result is an exceedingly long all-electric range at high speeds, upward of 50 nautical miles or 92 kilometers, on one charge. Speeds go up to 20 knots, and the range is three times more efficient than the best electric boats currently on the market.
In addition to the range and speed, these hydrofoils also provide a smoother ride thanks to their ability to move above the water’s wake and chop. Rather than feeling the boat bounce up and down on the water as it moves, occupants on the hydrofoil boat get to effortlessly glide along the water as the hydrofoils lift the vessel up and over rough water. According to the company, a series of onboard computers and sensors went into the design of the Candela Seven. In order to monitor the boat’s stability, these sensors constantly measure the height and adjust the foils to maintaining pitch, roll and height automatically.
Images via Candela Speed Boat