Corvus Energy has been chosen by HAF Power Solutions (HPS) to provide Energy Storage Systems (ESS) for the Energy Subsea Construction Vessel (ESCV) to be constructed for shipowner REM Offshore.
The new ESCV is of ST-245 design and would be the first vessel to carry out heavy development work in each offshore wind and the subsea market with internet zero emissions. The vessel can be outfitted with dual-fuel methanol engines and a 1.7MW battery system. The batteries can be used for spinning reserve and peak shaving in addition to to regenerate energy from the operation of offshore lifting gear onboard the vessel.
REM Offshore is likely one of the fundamental gamers within the maritime cluster in Norway with a contemporary fleet of 19 vessels for offshore, offshore wind, and subsea operations. “This project showcases that we are ready to take zero-emission offshore operations one step further. The vessel will not only be methanol ready – it will run on green fuels. The way it is designed, and its innovative technology will provide us with flexibility and efficiency as well as high redundancy. We anticipate significant improvements in energy consumption as well as a reduction in operational costs, while also contributing to a greener future for the maritime sector,” says Ronny Pål Kvalsvik, Chief Commercial Officer, Rem Offshore.
“Increased battery capacity is needed to optimize the system. When using an alternative fuel such as methanol, batteries play an even more important role as the response time for dual-fuel engines is slow. Increased energy storage capacity will allow us to more fully leverage the energy efficiency benefits of battery power, including the ability to regenerate energy from mission equipment onboard,” he says.
All fundamental companions within the challenge are positioned on the west coast of Norway. Both the design firm, Skipsteknisk and the integrator HPS are positioned in Ålesund, and the vessel can be constructed at Myklebust Verft in Gursken.
Pål Ove Husøy, VP of Sales at Corvus Energy, states: “The innovative vessel will set a new standard for offshore vessels due to its groundbreaking energy system design. Up until now, battery packs have often been sized to a minimum to enable spinning reserve for 10 minutes. Adding more battery capacity unlocks the potential to gain increased value from the battery system.
“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 provided power storage system is scheduled for supply in the course of the first half of 2026 and the vessel will go in into operation within the second half of the identical 12 months.
The contract additionally contains an choice for gear deliveries for a second vessel.
