W?rtsil? will upgrade the ?Siem Pride?, an 89 metre-long Platform Supply Vessel (PSV) owned by Norway based Siem Offshore Rederi, for hybrid engine and battery propulsion. The upgrade will enable the vessel to reduce the number of engines in use during operations, thereby considerably lowering its energy and fuel consumption. The order with W?rtsil? was signed in the 2nd quarter, 2021. Central to the conversion will be the W?rtsil? HY Module, which is a containerised solution on the deck of the vessel. Its latest-generation energy management system, which acts as the overall brain for the system, creates a high level of interaction with the ship?s other onboard systems. The installation will be connected to the existing 690 volt main switchboard. The engines in operation may run at up to 95% maximum continuous rating (MCR) without risk of overloading or black-outs. For the upgrade, W?rtsil? will supply the hybrid drive, the energy management system, the transformer, batteries, and the switchboard modification. The dynamic-positioning system will also be upgraded, while the ship design will be modified for the new arrangement. A deck house containing the equipment will also be installed. Finalisation of the project is projected for April 2022, at which time the vessel will be awarded DNV?s Battery Power notation. The vessel currently operates with two W?rtsil? 34DF and two W?rtsil? 20DF dual-fuel engines, as well as a complete W?rtsil? electrical package, including the integrated automation and power management systems, and the company?s Low Loss Concept power distribution system which features higher efficiency, lower weight and volume, and high system redundancy.