Electric boat takes flight in Sydney

This computer-controlled 'flying' vessel consumes 80 per cent less energy than a conventional boat.

Electric boat takes flight in Sydney
source: Carbon Yachts

Meet the powerboat making waves on Sydney Harbour by delivering a cleaner alternative to diesel and petrol boats.

Not only are electric vessels cleaner and cheaper to operate, they can also run more smoothly and quietly – a benefit for sensitive marine habitats.

The C-8 is the world’s fastest long-range electric powerboat according to its creator Candela, and can reach speeds of up to 30 knots and travel 57 nautical miles on a single charge.

The vessel was on show at the Sydney International Boat Show last week, with daily test rides running across Sydney Harbour.

"We set out to make the first no-compromise electric boat, and we ended up with a new and improved class of craft, which also happens to be electric."

As the winner of the 2023 European Boat of the Year (electric category), local maritime specialist Carbon Yachts said it had brought the C-8 to Australia for the boat show amid a surge in interest in electric boats across the country.

“The C-8’s design and performance set a new standard in the marine industry. It shows that electric boats can offer luxury, performance, and sustainability,” the company said.

“We believe that the C-8 can redefine the boating experience for Australian enthusiasts as well as engaging an entirely new market.”

The C-8’s arrival also coincides with the launch of Australia’s first fast-charging station for electric boats by marine charging network company Seavolt. Located at Sydney’s Pittwater, it is the first of a planned rollout along the east coast of Australia.

Flying ferries

Candela, founded ten years ago in Sweden, has also developed the world’s first electric ‘flying’ passenger ferry that rides above the water’s surface to reduce energy consumption. 

With a top speed of 30 knots and a range of 50 nautical miles, Candela says it cuts operational costs in half compared with conventional diesel vessels. The ferry entered service in Stockholm earlier this year as part of a nine-month pilot.

“We set out to make the first no-compromise electric boat, and we ended up with a new and improved class of craft, which also happens to be electric,” Candela CEO Gustav Hasselskog said.

He added that electric boats had the potential to revolutionise water transport in Sydney by offering faster journeys and lower costs.

The tech
The C-8 uses computer-controlled hydrofoils to lift it above the water’s surface which allows the boat to ‘fly’ reducing resistance and minimising wake. This allows it to consume 80% less energy than traditional boats of similar size. The C-8’s electric motor is housed in a pod beneath the surface allowing the vessel can operate in near silence even at speeds exceeding 20 knots. Advanced sensors and computers adjust the hydrofoil’s angle. This maintains a stable flight height and balance. The electric motor is powered by a 69kWh battery which can be charged in 30 minutes.