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Rotor Sails News

24 Sep 2024

Hanwha Ocean's Rotor Sails Earn DNV Type Approval

From left: Martin Cartwright of DNV, Young-Chang Son, Hanwa Ocean (Photo: DNV)

Classification society DNV has awarded Hanwha Ocean Type Approval Design Certification (TADC) for its innovative rotor sail technology, the first certification of a rotor sail approved for installation in hazardous zones in South Korea.The TADC confirms that Hanwha Ocean's Rotor Sail, designed with composite materials, is in line with DNV and international safety standards, guidelines and regulations and ready for practical application on commercial vessels. The certification process involved detailed design reviews and assessments…

10 Sep 2024

Anemoi Secures DNV’s Approval for Wind-Assisted Rotor Sail Design

(Credit: Anemoi Marine Technologies/DNV)

Wind-assisted propulsion systems developer Anemoi Marine Technologies has secured a Type Approval Design Certificate from classification society DNV for its Rotor Sail design.The Type Approval Design Certificate (TADC) validates that Anemoi's 5x35m Rotor Sail design complies with DNV's technical standard (ST-0511) for Wind Assisted Propulsion Systems (WAPS).In May 2024, Anemoi's 5x35m Rotor Sail was installed on the DNV-classed bulk carrier Berge Neblina, owned by Berge Bulk,…

20 May 2024

Pöntynen Takes the Helm at Norsepower

Heikki Pöntynen will step into the role of CEO of Norsepower. Image courtesy Norsepower

One chapter of Norsepower’s remarkable growth story ends and another begins as Tuomas Riski passes his CEO position onto Heikki Pöntynen, who has been a member of Norsepower’s board. Pöntynen has vast experience in maritime growth companies, and has held several maritime management positions in Finland, China, Hong Kong, and the USA.  Before starting at Norsepower, Mr Pöntynen served as a senior executive with Plannneri, R&M Group, Rauma Marine Constructions – Rauma Shipyard, Elomatic and MacGregor Group. He also holds an M.Sc. degree and EMBA from Kellogg, Northwestern University-WHU.

08 Nov 2023

Wind-assisted Propulsion for World's Largest Ore Carrier

Vale is to install five Rotor Sails from Anemoi onboard the VLOC Sohar Max to bring significant fuel and emission savings. The Rotor Sails will be installed with Anemoi's bespoke folding deployment system to mitigate the impact on air draught and cargo handling operations. Credit: Anemoi Marine Technologies

Brazilian mining firm Vale will install five Rotor Sails from Anemoi Marine Technologies Ltd (“Anemoi”), a supplier of wind-assisted propulsion technology for commercial vessels, onboard a 400,000 dwt Valemax, the world’s largest ore carrier. The vessel is owned by Omani shipowner, Asyad.Five 35-meter-tall, 5-meter-diameter cylindrical sails will be installed on the Sohar Max VLOC. The Rotor Sails will be installed on Anemoi’s folding deployment system, whereby the sails can be folded from vertical to mitigate impact on air draft and cargo handling operations.

23 Feb 2023

CLdN Car Carrier Fitted with Rotor Sails

(Photo: CLdN)

CLdN announced one of its RoRo car carrier vessels is ready for its return to service after being fitted with a rotor sail wind propulsion system.The Luxembourg based company is the latest in a string of ship owners and operators to have turned to wind propulsion systems as a means to reduce fuel burn and emissions amid its journey to improve operational efficiency and its environmental footprint.Now fitted with two 35mx5m rotor sails, Delphine is the first vessel in the CLdN fleet to be fitted with the system and will return to service from Zeebrugge…

08 Feb 2023

Liberian Registry Grants AiP for Anemoi's Rotor Sail

Pictured (left to right): Kostas Ladas, General Manager of LISCR (UK), Thomas Klenum, Executive Vice President, Innovation & Regulatory Affairs of LISCR, and Kim Diederichsen, CEO of Anemoi Marine Technologies. Image supplied

The Liberian Registry has awarded an Approval in Principle (AIP) to Anemoi Marine Technologies for their Rotor Sail systems.Anemoi’s Rotor Sails are available with three deployment options - fixed to the deck, a folding type, and on rails that can be moved along or across the deck.According to a press statement released Tuesday, the folding and rail systems were validated on a Newcastlemax bulk carrier design from SDARI and issued an AIP by Lloyd’s Register.The Liberian Registry conducted a technical review of the documentation…

14 Nov 2022

Grant Funding for GT Green's AirWing

Three AirWing systems fitted to a 225m bulk carrier. Image courtesy GT Green Technologies

Based in the UK, GT Green Technologies said it secured grant funding from its Department of Transport following this year’s Clean Maritime Demonstration Competition Round 2 (CDMC2) for the company’s proprietary AirWing propulsion solution, currently in development. Patent-pending, AirWing is designed to help ships reduce emission while retaining a compact size and low-profile stowage functionality to ensure uninhibited loading and unloading of vessel cargo.Available as either a retrofit or newbuild option…

13 Jul 2022

VIDEO: Berge Bulk to Install Anemoi Rotor Sails on Two Dry Bulk Vessels

Credit: Berge Bulk

Singapore-based dry bulk owner Berge Bulk has signed a deal with wind-assisted propulsion firm  Anemoi Marine Technologies to supply and fit two vessels in their dry bulk fleet with Anemoi Rotor Sails.Rotor Sails are large mechanical sails that harness the renewable power of the wind to reduce emissions and fuel consumption on commercial ships when driven to spin. Anemoi predicts that the four-rotor system will save Berge Bulk 1200-1500 metric tons of fuel per vessel each year.The first vessel…

20 Jan 2022

Rotor Sails: The Compelling Decarbonization Solution

Photo courtesy Anemoi

Global supplier of wind propulsion, Anemoi Marine, believes Rotor Sails - which are unique, tall cylindrical sails that can be installed on the deck of commercial vessels - offer an immediate and compelling solution for shipowners working to reduce vessel emissions.Anemoi estimates that a VLCC with six Rotor Sails would reduce fuel and emissions by approximately 14.9% (c.1,889 tonnes fuel and c.6,058 tonnes of carbon) per year, based on a Bonny-Ningbo round trip.When considering fuel savings for bulk carriers…

22 Oct 2021

Wind Propulsion Conference Set for Webb Institute

What: Natural Propulsion in Ship DesignWhen: November 16, 2021Where: Webb Institute, Glen Cove, NY (broadcast live)Hosts: Webb Institute, Marin Institute, and Wind Support NYCA new conference on the use of natural propulsion in the global shipping industry will take place in New York on November 16, 2021, hosted by Webb Institute in Glen Cove, NY, and broadcast live.The conference aims to introduce to the audience the design of hybrid merchant ships capable of harnessing free and renewable energies available onboard – wind…

13 Oct 2021

Scandlines Preps Second RoPax for Rotor Sail Install

Scandlines' hybrid ferry Berlin will be equipped with a Norsepower rotor sail (Photo: Scandlines)

Denmark-headquartered ferry operator Scandlines has opted to install a rotor sail on board a second vessel in its fleet after equipping the hybrid ferry Copenhagen with its first wind auxiliary propulsion unit in 2020.Berlin, a sister vessel to Copenhagen, also operates on the Rostock-Gedser route but, unlike Copenhagen, is flagged by Germany.Scandlines has had more than a year to collect data on how the Norsepower rotor sail works on Copenhagen, and what effect it has on the route.Scandlines’ COO…

26 May 2021

Tufton Invests in Wind Power for 82,000 dwt Bulk Carrier

Illustration of TR Lady with 3 Anemoi Rotor Sails on Rail Deployment System. Photo courtesy TR Lady Shipping/Anemoi Marine Technnologies

TR Lady Shipping Ltd, a portfolio company of Tufton Investment Management Ltd (“Tufton”), signed a contract Anemoi Marine Technologies to supply and fit the bulk carrier TR Lady with three large Rotor Sails and Anemoi’s patented Rail Deployment System, a system designed to allow the Rotor Sails to be moved across the deck to minimize impact on port operations.TR Lady is a CS Marine design 82,000DWT Kamsarmax bulker, built in 2017 by Yangzijiang Shipbuilding Group, and managed by Tufton. TR Lady will be retrofitted with the Rotor Sails during scheduled dry docking of the vessel.

23 Mar 2021

DNV Awards AIP for DSME's Rotor Sail System

Visualization of the DSME Rotor Sail System (Image: DNV)

South Korean shipbuilder Daewoo Shipbuilding & Marine Engineering (DSME) received an approval in principle (AiP) from classification society DNV for the DSME Rotor Sail System for large oil tankers and liquefied natural gas (LNG) carriers.Desigend to provide eco-friendly auxiliary propulsion for ships, a rotor sail system incorporates the installation of cylindrical columns (rotors) on the vessel’s deck to generate additional power to propel the ship by using the force of the wind and column rotation during operation.“In this time of growing pressure to decarbonize…

29 Oct 2020

Wärtsilä Inks Deal to Sell Rotor Sails

Wärtsilä will include Anemoi Marine Technologies’ Rotor Sails as part of its propulsion offering. (Photo: Anemoi Marine Technologies)

The technology group Wärtsilä said it has signed a Memorandum of Understanding (MoU) tied to a License and Cooperation agreement with U.K.-based Anemoi Marine Technologies for the future sales and servicing of Rotor Sail solutions to the shipping industry.Rotor Sails, also referred to as Flettner Rotors, are comprised of vertical cylinders which, when driven to rotate, harness the renewable power of the wind to propel ships. These highly efficient mechanical sails capitalize on…