Energy Saving Devices – Page 3

  • The 12-year-old 'Valais' achieved a 24% reduction in fuel consumption following a retrofit with a bulbous nose and an underwater foil. (Image: Jari Ott)

    Underwater wing and bulbous bow lifts passenger vessel fuel efficiency


    Retrofitting a 12-year-old 30 metre passenger vessel with an underwater wing and a bulbous bow reduced the vessel’s resistance and contributed to a 24% improvement in fuel efficiency.

  • EMP’s Aquarius Eco Ship design “would most likely incorporate an onboard DC grid to allow a range of power sources to plugged in”

    Wind above: what goes on below?


    Could wind’s promised efficiency impact other systems? Stevie Knight asks the questions...

  • The Airseas parafoil line incorporates a data cable which runs to a control pod which directs the wing into a dynamic figure-of-eight flying pattern. Image: Airseas

    Out on the pull: making wind assistance work


    Wind power is worth attention: theoretical ‘castles in the air’ are rapidly gaining foundations, writes Stevie Knight

  • An innovative series of Twin Fin bulk carriers are to feature an electric drive train package. (Image courtesy of Yaskawa Environmental Energy / The Switch)

    The Switch package for Twin Fin bulk carrier series


    A series of bulk carrier newbuildings propelled by Caterpillar Marine''s Twin Fin propulsion packages will feature a Yaskawa Environmental Energy / The Switch electric drive train solution.

  • Wavefoil's fibreglass retractable bow foil solution was retrofitted to MF Teistin in September 2019. (Picture courtesy of Wavefoil A/S)

    Bow foil operational results reveal fuel savings


    Wavefoil, the Norwegian bow foil technology company, said its retractable bow foil solution had significant fuel savings after analysis of six months of performance of its first installation aboard a Faroe Islands based ferry.

  • Evaluations of the innovative gate rudder assembly have shown improvements in both efficiency and manoeuvrability. (Copyright: Yamanaka Shipbuilding)

    Wärtsilä inks license deal for gate rudder technology


    Wärtsilä has announced plans to fully integrate an innovative propulsion device - the gate rudder - within its propulsion product designs after entering into a partnership relationship with the device’s Japanese patent holders.

  • Flapping-wing systems had attracted interest from the Unmanned Surface Vehicle (USV) segment (pictured). (Credit: AutoNaut)

    Flapping-wing solution at heart of next-gen efficiency project


    A consortium of seven industry and academic partners, including technology group Wärtsilä, is conducting a three-year EU funded research project to develop two symbiotic ship engine and propulsion innovations.

  • 'Ankie'

    Wind propulsion unit commercially installed


    The first commercial retrofit of eConowind’s Ventifoil unit for wind-assisted ship propulsion has taken place on Jan van Dam Shipping’s 3,600 DWT general cargo vessel ''MV Ankie''.

  • ClassNK has joined the International Windship Association Credit: ClassNK

    ClassNK commits to wind propulsion


    Furthering its commitment to wind propulsion technologies, ClassNK is joining not-for-profit organisation, the International Windship Association (IWSA).

  • Wärtsilä has agreed to install and service Silverstream's air lubrication system Photo: Silverstream Technologies

    Wärtsilä and Silverstream join forces


    Technology group Wärtsilä and Silverstream Technologies have signed a licence and co-operation agreement for future sales and servicing of the Silverstream air lubrication system.

  • The WASP project will investigate the feasibility of wind propulsion Photo: WASP

    North Sea wind propulsion project launches


    A €5.4 million project to research and trial wind propulsion in the North Sea has been officially approved and launched.

  • Trials of Rotor Sail technology onboard the ‘Maersk Pelican’ have been a success Photo: Norsepower

    Maersk tanker Rotor Sails trial a success


    Norsepower Oy together with project partners Maersk Tankers, Energy Technologies Institute (ETI) and Shell International Trading and Shipping Company, have successfully completed trials of two Norsepower Rotor Sails onboard a Maersk Tankers product tanker.

  • The agreement between Wärtsilä and Norsepower will promote the use of Rotor Sails and support sustainable shipping Photo: Wärtsilä

    Partnership to advance wind propulsion


    Technology group, Wärtsilä, and Norsepower have signed a service cooperation agreement, enabling Norsepower to order service from Wärtsilä, whilst Wärtsilä can pursue and sell Norsepower Rotor Sail projects.

  • VPLP has designed a RoRo to transport the Ariane 6 rocket which is propelled in part by its Oceanwings Photo: VPLP

    Wing sails help propel rocket transport ship


    Naval architecture firm, VPLP, has moved into the maritime transport sector with the development of a RoRo vessel for transporting components of the Ariane 6 rocket from Europe to French Guiana.

  • ClassNK has given AiP to the design of a hard sail system which converts wind energy to propulsive power Photo: ClassNK

    ClassNK approves hard sail system design


    Classification society ClassNK has granted approval in principle (AIP) for the basic design of a hard sail system which converts wind energy to propulsive force with a telescopic hard sail.

  • Mediterranean Shipping Company's (MSC) 399.9m-long, 23,756 TEU MSC Gulsun is the largest container vessel in service. (Picture credit: MSC)

    A second wind for air lubrication systems


    MSC’s new 23,700 TEU MSC Gülsün is the latest vessel to be built ready to be fitted with an air lubrication system, amid a resurgence in interest in the technology, writes Nick Savvides.

  • The first commercial installation of Airseas' Seawing power kite is due to be undertaken in 2020 aboard Ville de Bordeaux ro-ro. (Picture copyright: Carsten Feldhusen/

    Pulling power: applying dynamic control to towing kite technology


    The last few months have seen an upsurge in interest in Seawing, the automated power kite developed by Toulouse-based developer Airseas, even before the product’s commercial launch.

  • ClassNK has released guidelines for wind-assisted propulsion systems Photo: ClassNK

    ClassNK releases wind propulsion guidelines


    In response to ever-tightening environmental regulations, classification society ClassNK has released its new guidelines for wind-assisted propulsion systems.

  • Wind farm

    Europe’s wind capacity up from 2018


    Europe added 4.9GW of new wind energy capacity in the first half of 2019, according to figures released by WindEurope.

  • ABS and MARIN have launched a project to assess the performance of wind propulsion systems. The project includes Rotor Sail producer, Norsepower (pictured).

    Wind propulsion project launched


    ABS and MARIN have launched a joint industry project (JIP) to investigate methods of assessing the performance of wind-assisted shipping propulsion technologies.