New study confirms fuel savings from Norsepower rotor sails and weather guidance Ship’s crew

A joint study on the operating efficiency of Norsepower’s rotor sails has shown that, in combination with optimal weather management, significant fuel savings are achieved.

For the study, Norsepower worked together with the leading experts in maritime software and data services, NAPA, and Sumitomo Heavy Industries Marine & Engineering (SHI-ME), one of the world’s leading shipyards. The companies announce the results of the first phase of the project, which is investigating the potential for fuel savings and emissions reductions through a combination of Norsepower’s rotor sail solution and NAPA Voyage Optimization on one of SHI-ME’s vessels.

Norsepower Rotor Sails is a modernized version of the Flettner rotor, utilizing the Magnus effect to generate forward thrust, thereby reducing overall fuel consumption and associated greenhouse gas emissions. The technology has been used in various sectors of the marine industry for over eight years and has over 250,000 operating hours of verified performance data, resulting in fuel consumption savings of 5 to 25%.

The first phase of the simulation project, which ran from December 2022 to March 2023, found that integrating NAPA Voyage Optimization with the Norsepower Rotor Sail could achieve an average 28% emission reduction on the Atlantic route from New York to Amsterdam. NAPA Voyage Optimization contributed approximately 12% to these CO2 emissions savings.

The project used NAPA’s ship performance model, voyage simulation tools and real-world performance data from Norsepower. Using nowcast weather data from 2022 and specifications from Norsepower and SHI-ME, NAPA’s digital twins simulated tanker performance in selected sea areas.

The study focused on the annual voyages of six popular trade routes and evaluated the estimated CO2 reduction and potential fuel savings of tankers using NAPA Voyage Optimization and Norsepower Rotor Sails compared to using NAPA Voyage Optimization alone. Across all six routes, the study found an average 19% CO2 reduction from combining NAPA Voyage Optimization with Norsepower rotor sails, with NAPA Voyage Optimization accounting for 10% of the emissions reductions. The simulation also examined predicting the ship’s performance during the design phase and tested the ship’s capabilities in various sea and weather conditions.

The second phase of the research project, starting in May 2023, aims to expand the initial findings and optimize ship performance with Norsepower Rotor Sails using fleet data. Advanced performance analysis is performed to increase operational efficiencies and explore new optimization strategies. As part of this project, SHI-ME intends to develop a new proof of concept for wind-assisted vessels equipped with Norsepower rotor sails.

Project outcomes will help strengthen the business case for investing in wind-assist technology, especially as the industry faces increasing pressure to decarbonize. Leveraging NAPA’s operational voyage simulation technology combined with the technical expertise of Norsepower and SHI-ME, the joint study provides important insights and informed decision support, already during the design phase.

“This joint simulation project demonstrates the significant potential of combining wind propulsion with voyage optimization for a positive impact on the planet,” said Pekka Pakkanen, executive vice president of NAPA Shipping Solutions. “At a time when the industry is struggling to comply with environmental regulations, digital solutions enable better collaboration with stakeholders across the entire maritime value chain.”

Jukka Kuuskoski, Norsepower’s Chief Sales Officer, stressed the importance of clean technologies in tackling fuel economy and environmental issues. “This performance data on the benefits of adopting clean technologies will give the industry the confidence it needs to invest in decarbonization,” said Kuuskoski

The ongoing project and its discoveries offer valuable insights for the maritime industry in its efforts to align with sustainability goals.

Related Articles

Back to top button

Subscribe To Our Newsletter

Don't miss new updates on your email