Corvus to supply ESS for CSOVs

The vessels will have hybrid battery propulsion and are based on the ULSTEIN SX222 design with TWIN X-STERN from Ulstein Design & Solutions AS. The vessels are scheduled for delivery in spring and summer 2023.

The contract is noteworthy as it represents the largest battery installation for SOVs to date, according to Corvus Energy.

Ulstein Power & Control will integrate the battery-based ESSs into the hybrid-electric propulsion system. The vessels will be able to operate in Dynamic Position mode on a single engine augmented by battery power, to operate more efficiently in transit and other operational modes, and to operate on battery-power only when stationary. 

During operation, the offshore wind service vessels will stay positioned at the turbines most of the time, and with the main propellers fore and aft, these vessels will reduce the energy requirement to a new level when on DP. 

“We have had very good cooperation with Corvus Energy towards the contract signing and we look forward to continuing this going forward. Collaboration is key to finding the best solutions. The fact that they have a local office in Fosnavåg close to both shipyard and owner makes this a lot easier” says Rolf Ottar Rovde in Ulstein Power & Control.

“We are very proud to be the chosen supplier for these projects. This is also a very important market for Corvus Energy as we see increased interest for batteries from the entire Offshore Wind segment along with larger and larger battery installations. Due to the operational profile of SOVs, the potential for reducing emissions and costs by installing batteries is very high”, noted Corvus’ Vice President Sales, Pål Ove Husøy.

Pål Ove continues, “This segment is also next in line for full zero-emission operations. With requirements for even larger battery systems, we see that our newly developed Corvus Blue Whale ESS has great potential for this vessel type. Blue Whale is a ground-breaking Energy Storage System specifically designed to meet large energy requirements and can enable emission-free operations for much longer periods of time.”

The vessels are prepared for methanol fuel and have available space for additional battery capacity for full-electric repowering when the infrastructure for such is available.