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Plug-in hybrid cruise ship sets sail

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The battery has a capacity of 61,000 kW hours

The Havila Capella, powered in part by what has been dubbed the world’s largest battery of ships, embarked on its maiden voyage along the Norwegian coast.

The 124m vessel is the first of Havila Kystruten’s ships to make the traditional coastal voyage from Bergen to Kirkenes. The ship’s NOx emissions are 90% lower than similar ships, and a hybrid gas-electric propulsion system reduces CO2 emissions by 25%.

“Havila Capella is equipped with the largest ship battery in the world, can sail four hours emission-free and can use the onshore power supply of hydropower to charge the battery,” said Gunnar Larsen, CEO of HAV Group. “This allows Havila Kystruten to meet emission-free navigation requirements in Norway’s World Heritage Fjords several years before government requirements go into effect. HAV Group is proud to have played a key role in this achievement.

Havila Capella embarked on her maiden voyage along the Norwegian coast.

HAV Group subsidiaries HAV Design, HAV Hydrogen, Norwegian Electric Systems and Norwegian Greentech have all contributed to the Havila Capella.

HAV Design has designed the Havila Capella, which contains several technological innovations that help reduce operating costs and emissions. A bespoke hull and equipment, developed with a simulator-based ship design that, among other things, takes into account weather conditions, wind and waves along the route, resulted in a much more energy efficient vessel and environmentally friendly than what the Norwegian authorities have specified in their tender for the operation of the coastal road.

Norwegian Electric Systems (NES) delivered one of the world’s largest ship battery packs to the ship, along with a hybrid gas-electric propulsion system and intelligent control systems for the entire ship. The battery pack has a capacity of 6,100 kWh, more than twice that of larger battery-powered ferries. NES also supplied the Raven INS integrated navigation system, generators, a complete switchgear system, transformers, frequency converters for the thrusters and the vessel’s energy management system.

Kongsberg delivered Bergen gas engines to Havila Kystruten and the ship’s main propulsion comes from a KM Azipull-PM (permanent magnet) unit with an L-drive configuration. Noted for its exceptional hydrodynamic efficiency, the AZP-PM also offers the advantage of a compact installation footprint as its motor is housed within the diameter of the mounting flange.

Likewise, the KM permanent magnet technology used on Havila Capella’s tunnel thrusters combines space-saving convenience with quiet operation, low vibration and high performance.

In addition, the on-board propulsion system has been prepared for the future modernization of hydrogen and fuel cell technology. Thanks to the hydrogen energy, the ship will be able to navigate without emissions on important parts of the coastal route.

Norwegian Greentech (NGT) supplied the Havila Capella ballast water treatment system.

With the support of the Norwegian Research Council, Innovation Norway and Enova, Havila Kystruten and the HAV Group subsidiaries HAV Design, NES and HAV Hydrogen are currently developing a high capacity hydrogen power system that can be used on board. from one of Havila Kystruten’s coastal cruise ships. The project is called FreeCO2AST and is also supported by the research institutes Sintef Ocean and Protech.

“We congratulate Havila Kystruten for having the courage and the will to realize the impressive environmental ambitions of Havila Capella. We are proud to have designed, developed and equipped this innovative vessel, ”said Larsen.


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