Corvus Energy to Supply ESS for The First Net Zero Subsea Construction Vessel


Corvus Energy, the leading provider of marine battery and fuel cell systems, is pleased to announce that they have been selected by HAF Power Solutions (HPS) to supply Energy Storage Systems (ESS) for the innovative Energy Subsea Construction Vessel (ESCV) to be built for shipowner REM Offshore, according to an article published on their website.

Increased battery capacity helps optimize energy consumption

REM Offshore is one of the main players in the maritime cluster in Norway with a modern fleet of 19 vessels for offshore, offshore wind, and subsea operations.

The new ESCV is of ST-245 design and will be the first vessel to perform heavy construction work in both offshore wind and subsea with net zero emissions. The vessel will be equipped with dual-fuel methanol engines and a 1.7 MW battery system. The batteries will be used for spinning reserve and peak shaving as well as to regenerate power from the operation of offshore lifting equipment onboard the vessel.

All main partners in the project are located on the west coast of Norway. Both the design company, Skipsteknisk, and the integrator HPS are located in Ålesund, and the vessel will be built at Myklebust Verft in Gursken. This proximity facilitated close collaboration throughout the entire project planning phase for the vessel.

The new standard for offshore vessels

By adding additional battery capacity, you can increase the value of the batteries by utilizing them in all operational modes as well as improve the balancing of the entire power management system to reduce fuel as much as possible. In this case, when the vessel will be running on Methanol, the more you can utilize the batteries, the more cost-efficient it gets.

The Corvus Energy supplied energy storage system is scheduled for delivery during the first half of 2026 and the vessel will go in into operation in the second half of the same year.

The contract also includes an option for equipment deliveries for a second vessel.

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Source: Corvus Energy