The article announces the launch of Windcat Rotterdam, the first of six new Commissioning Service Operation Vessels (CSOVs) commissioned by Windcat Offshore from Ha Long Shipbuilding in Vietnam. The collaboration with Belgian engineering firm CMB.Tech ensures that each 87x20 meter vessel will feature a hybrid electric propulsion system with hydrogen as the primary fuel source. Windcat Rotterdam, equipped with accommodation for 120 individuals and a 30-day endurance, will set new standards for energy efficiency in offshore operations. The vessel's design eliminates the need for a backup diesel generator and emphasizes optimal power usage. Scheduled for delivery in the second quarter of 2025, Windcat Rotterdam will offer offshore charging capability and essential deck equipment like a gangway and crane, enhancing its functionality in commissioning service operations. This innovative approach highlights the integration of sustainable technology in marine operations, marking a significant step towards eco-friendly and efficient offshore services.