Corvus to supply ESS for world’s first hybrid crew transfer SES

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Corvus Energy has announced a new contract with SEC Marine, UK, to supply the energy storage system (ESS) for the world’s first hybrid surface effect ship (SES) for crew transfer.

The development of the 22m hybrid SES for use as a crew transfer vessel is in response to an industry-wide push to develop and deploy technologies that reduce CO2  emissions, while cost-effectively servicing windfarms located offshore.

The vessel design has been developed in partnership with the operator CWind and ESNA, a ship design company based in Kristiansand, Norway, which specializes in commercially competitive vessels with surface effect technology to deliver significant carbon reductions.

“We see that hybrid propulsion in offshore wind crew transfer vessels enables a greener footprint and multiple benefits for the vessel owners,” said Trygve Halvorsen Espeland, naval architect at ESNA. “The vessels have the benefit of range with the combustion engine, while the batteries provide both increased speed with power boost, peak shaving and reduced fuel consumption. Moreover, the engines will have fewer running hours and the silent hours on board will be appreciated by the crew and passengers.”

The crew transfer vessel is designed with two catamaran hulls, closed area between and an inflated rubber bag in the stern which supports up to 80% of the vessel weight when filled with air. The remaining 20% is supported by hull buoyancy. Less hull resistance enables higher vessel speed and less wave contact gives reduced motion for the crew.

“The electrification of crew transfer boats and smaller workboats has only just begun,” said Kim Klokkervold, senior sales manager at Corvus Energy. “We’re confident we’ll see a massive shift from diesel to battery-hybrid powered propulsion on all kinds of smaller workboats due to substantial benefits and increased focus on reducing emissions.”

The lightweight Corvus Energy Dolphin modules are ideally suited to crew transfer vessels as they are tailormade for weight-sensitive vessels and have multiple possibilities of installation which ensures the optimal hybrid solution for maximum emission savings. Moreover, batteries are safer and quieter for the crew, and save both fuel and maintenance costs for the owners.

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With almost two-decades experience in consumer magazines, Wesley recently moved to B2B publishing and now edits a number of titles for UKi Media & Events, including Electric & Hybrid Marine Technology International.

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