Ulstein Group has launched its innovative ULSTEIN POWER VSG (Variable Speed Generator) system, aimed at setting new benchmarks in marine power efficiency. The company claims the system offers a significant leap forward in optimizing power generation for service vessels by dynamically adjusting generator speed to meet varying load demands.
Traditional fixed-speed generators operate at a constant speed, regardless of the vessel’s energy needs, leading to inefficiencies in fuel consumption and emissions. In contrast, the ULSTEIN POWER VSG adjusts its speed to align with load requirements, ensuring the generator operates within an optimal energy-efficient range. Ulstein asserts that this dynamic adjustment results in substantial gains in fuel efficiency, emission reductions, and overall system performance.
Ulstein’s testing of the VSG system aboard the Olympic Boreas, a construction service operation vessel (CSOV), has delivered impressive results. During a week of dynamic positioning (DP) operations, the vessel recorded a fuel consumption as low as 2.7 tonnes per 24 hours, setting a new record for fuel efficiency.
The key to these results lies in the VSG’s ability to optimize power generation based on the ship’s energy demand. Onboard technical measures have reduced the power requirement to between 250-300 kilowatts under specific conditions. In such low-demand scenarios, variable-speed generation proves far more efficient than traditional constant-speed systems, drastically reducing energy consumption per kilowatt-hour produced.
The development of the Olympic Boreas involved multiple Ulstein Group companies, which collaborated on the planning, design, and construction of the vessel. The process began with the creation of an energy-efficient hull, followed by an in-depth evaluation of systems and components to maximize energy efficiency. Ulstein Design & Solutions AS was instrumental in analyzing the vessel’s design, ensuring that it would meet the highest standards of energy performance.
Ulstein’s Power & Control division developed the VSG system, which the company claims redefines efficiency, sustainability, and performance in marine alternating current (AC) power systems. Beyond enhancing fuel consumption and emissions, the system also contributes to reduced maintenance costs, further improving the vessel’s overall operational efficiency.
According to Ulstein, the Olympic Boreas achieved a near 50% reduction in fuel consumption compared to other CSOVs, underscoring the significant impact of the ULSTEIN POWER VSG system. These advancements, in conjunction with the vessel’s innovative design and technical measures, highlight Ulstein’s commitment to advancing fuel efficiency and cutting operating costs in the marine industry.
Related topics: