ABB advanced power and control systems have been chosen for a giant self-elevating wind turbine installation vessel (WTIV) under construction for Japan’s Shimizu Corporation by shipbuilder Japan Marine United.
According to Shimizu, the vessel represents an investment of 50 billion yen, about $477 million. It will have an overall width of 50 m, a length of 142 m, and a gross tonnage of 28,000 t. It will be equipped with a crane with a maximum lift capacity of 2,500 t and a maximum lift height of 158 m. Able to transport and install seven 8 MW wind turbines in a single voyage, it will operate in waters ranging between 10 and 65 meters deep.
ABB will deliver a closed ring configuration for the vessel’s dynamic positioning (DP) operations, enabling safe and predictable performance with high tolerance in the event of the power plant fault. Whether applied to newbuilds or retrofits, these solutions offer increased resilience to network disturbances, as well as timely and precise protection against power loss.
“ABB’s extensive experience with closed-bus systems for dynamically positioned vessels and wind turbine installation vessels in particular had been a decisive factor for this project,” said a Japan Marine United Corporation spokesperson. “We recognize that closed ring solutions improve operational flexibility and engine running efficiency, while increased protection against power loss is a vital safety advantage. ABB’s vast experience with these technologies has been a decisive factor for us.”
ABB’s scope of supply also covers the delivery and system integration of generators, high voltage switchboard system, the variable speed drives and motors for main propulsion and bow thrusters, and the Power and Energy Management System (PEMS).
“We are honored to work with Shimizu Corp. and Japan Marine United Corporation in delivering this landmark vessel to the Japanese market at this important stage of the country’s renewable energy strategy,” said Juha Koskela, Managing Director, ABB Marine & Ports. “Sustainability is a core commitment for ABB Marine & Ports deliveries, and we are thrilled to secure this benchmark order that will be key in supporting offshore wind energy developments in Japan.”
The vessel will have the capability to leverage the ABB Ability Remote Diagnostic Services for Marine. The network uses remote equipment monitoring and data analytics to enable predictive maintenance, planned interventions or even remote technical assistance, supported from seven existing shore-based ABB Marine & Ports’ Collaborative Operations Centers staffed by ABB experts.
Public attitudes and policy in Japan are favorable to renewable energy, where government recently passed a law to allow construction of offshore wind farms beyond port-related zones. The go-ahead coincides with Global Wind Energy Council expectations that Asian offshore wind capacity will reach 165 GW by 2032. China will account for much of the growth, but analyst Wood Mackenzie recently forecast that Japan’s offshore wind capacity would expand to 4 GW by 2028 – a 62-fold increase from 2018.
Delivering on these expectations is challenged by the sharp increase in water depths close to the Japanese coastline, which limits areas suitable for installing wind turbines. Maximizing the energy output requires large wind turbines, the installation of which, in turn, calls for large WTIVs. With most such vessels tied up with duties in European waters, Japan has an urgent need for high performance WTIVs, purpose-built to do the job.