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Latest NewsPower & PropulsionULSTEIN Power Introduce Variable Speed Generator 

ULSTEIN Power Introduce Variable Speed Generator 

The ULSTEIN POWER Variable Speed Generator (VSG) has been designed to optimise power generation on marine vessels by dynamically adjusting its speed to match load requirements. Together with technical measures and overall ship design, the operational results on the CSOV Olympic Boreas show a record-low 2.7-tonne fuel consumption per 24 hours during a week of DP operations.

Running the engines at variable speed optimises power production based on the vessel’s energy demand. Technical measures onboard have reduced power demand to 250-300 kilowatts under certain conditions. With such low power requirements, variable speed is significantly more efficient than constant speed, contributing to greatly reduced energy consumption per kWh produced.

The process started with an energy-efficient hull and thorough evaluations of systems and components. Once elements like main dimensions, seakeeping properties, and uptime were in place, Ulstein Design & Solutions AS analysed how the ship could become as energy efficient as possible, considering various system and propulsion solutions to achieve the best energy use and recovery results.

Developed by Ulstein Power & Control, the ULSTEIN POWER VSG redefines the standards of efficiency, sustainability, and performance in marine AC power systems. It substantially improves fuel consumption, emission reduction, overall system performance, and lower maintenance costs. The AC system is based on known robust technical solutions, giving the shipowners a reliable solution.

As part of its solutions for ship owners, Ulstein Power & Control is servicing, monitoring, and optimising automation and power solutions 24/7 from the remote operation centre.

The Olympic Boreas achievement represents close to a 50% reduction in fuel consumption compared to other CSOVs.

This highlights how the ULSTEIN POWER VSG, the technical measures, and the overall ship design can effectively enhance fuel efficiency and reduce operating costs, setting a new standard in the maritime industry.

The ULSTEIN POWER VSG’s versatility makes it suitable for a wide range of marine vessels, including offshore, expedition cruise, and aquaculture vessels. Key components of the system include a powertrain, energy storage solutions, and a state-of-the-art power and energy management system.

The ULSTEIN POWER VSG represents a groundbreaking advancement in marine power solutions. Ulstein has delivered a solution that meets and exceeds maritime operations’ demands by combining variable speed generation with cutting-edge automation and energy management applications. As the industry prioritises sustainability and efficiency, the ULSTEIN POWER VSG stands out as a key enabler in navigating the future of green marine power solutions.

The ULSTEIN POWER VSG is a sophisticated Variable-Speed Generator system designed to optimize power generation on marine vessels. It includes an advanced load-sharing strategy between fixed-speed and variable-speed generators operating in parallel. Unlike traditional fixed-speed generators, which operate at a constant speed regardless of demand, the ULSTEIN POWER VSG dynamically adjusts its speed to match load requirements, delivering power to the grid within the sweet spot of energy efficiency. This significantly improves fuel consumption, emission reduction, and overall system performance.

The versatility of the ULSTEIN POWER VSG makes it suitable for a wide range of marine vessels, including:

  • Offshore vessels: Provides reliable, dynamic, and efficient power for DP-operated vessels like SOVs, subsea, and support ships.
  • Expedition Cruise vessels: Ensures a smooth and efficient power supply, enhancing passenger comfort and operational reliability.
  • Aquaculture vessels: Highly variable power demands depending on the type of operation will have great benefit from the ULSTEIN POWER VSG, ensuring a significantly reduced environmental footprint.

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