Alwena | https://www.alwenashipping.com Conseil et expertise pour les acteurs du maritime Thu, 19 Mar 2026 14:07:11 +0000 en-GB hourly 1 https://wordpress.org/?v=6.2.2 https://www.alwenashipping.com/wp-content/uploads/2026/01/ico-alwena-2026n.png Alwena | https://www.alwenashipping.com 32 32 CTV https://www.alwenashipping.com/en/projet/ctv-foil/?utm_source=rss&utm_medium=rss&utm_campaign=ctv-foil https://www.alwenashipping.com/en/projet/ctv-foil/#respond Wed, 24 Jan 2024 12:55:48 +0000 https://www.alwenashipping.com/?post_type=portfolio_page&p=43975

CTV with foil and methanol propulsion

PRESENTATION OF THE PROJECT

In 2022, VPLP Design, MerConcept and Alwena Shipping jointly developed a 24-meter-long foil CTV concept dedicated to the transport of personnel for the maintenance of offshore wind turbines.

This study commissioned by EDF Renewable aimed to decarbonize the world of CTV while offering substantial comfort to technicians.

This CTV is able to speed up to 35 knots at cruising speed, thanks to the use of foils. It offers consumption that can be reduced by up to 40% compared to conventional hulls, while reaching speeds that compete with helicopters or other rapid means.

The desire to use hydrogen as a means of energy on board has been transformed by the use of green methanol combined with batteries in order to guarantee a ship with 0 CO2 emissions.

Categorie

Innovation

CLIENT : self-financed concept

PARTNERSS : VPLP, Mer Concept

START OF PROJECT : 06-2022
END OF PROJECT :  ongoing

MAIN CARACTERISTICS
OF THE SHIP

SHIP TYPE : CTV
LENGTH OVERALL : 24 m
MOULDED BREADTH :  9.2 m
DRAUGHT (SCANTLING) : 4.5 m
CAPACITY : 17 tons

MATERIAL : Aluminium – Composite

SERVICE SPEED : 35 knots

OUR MISSIONS

Propulsion study

Technical specifications

Quotation with shipyard

Any questions about this project ?

We're here to help. Contact the project manager directly for any information you may require.

fx-louis-alwena
francois-xavier.louis@alwenashipping.com +33 (0)7 67 25 07 06

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]]> https://www.alwenashipping.com/en/projet/ctv-foil/feed/ 0 WindTainer https://www.alwenashipping.com/en/projet/windtainer-concept/?utm_source=rss&utm_medium=rss&utm_campaign=windtainer-concept https://www.alwenashipping.com/en/projet/windtainer-concept/#respond Sun, 21 Jan 2024 09:36:58 +0000 https://www.alwenashipping.com/?post_type=portfolio_page&p=43191

WindTainer

PRESENTATION OF THE PROJECT

WINDTAINER is an Alliance of three French Companies, Louis Dreyfus Armateurs, VPLP Design and Alwena Shipping, formed in April 2023 with the purpose of developing logistics solutions through methanol fueled and wind assisted/propelled pure container ships having low fuel consumption and low carbon dioxide emissions.

The Alliance, which ambitions are in line with the IMO GHG Strategy to reach net-zero by or around 2050, has developed an innovative concept of containerships with:

  • Dual fuel engines (Methanol but also MDO as option)
  • Wind assisted propulsion
  • Optimized hull design

At the moment and in consideration of existing Wind propulsion technology and its applicability on containerships, WINDTAINER has developed and proposes three versions of this concept :

  • WindTainer 4000 for containerships between 3,000 TEU and 4,000 TEUS
  • WindTainer 2500 for containerships between 1,500 TEU and 3,000 TEUS
  • WindTainer 600 for containerships between 400 TEU and 1,500 TEUS

Main innovation of this concept is the use of wind propulsion and the installation of wings, which is yet to be marketed and developed in the containerships industry.

WINDTAINER studies, based on performance predictions and historical weather data on routing done during two years, have assessed that there is an indicative potential reduction in CO2/TEU emissions up to 93% between WindTainer 2500 using Green Methanol with wings and a conventional similar containership running with HFO.

 

WINDTAINER may offer different bespoke services to its clients, which can be either existing shipping lines or shippers/coalitions of shippers, based on prior determination of the best solution required :

 

  • Ship Design and Ship Construction supervision
  • Ship Management including technical, operations and crew management
  • Determination with the client of required ship size, trade flow and most favourable routing
  • Simulation of wind assistance performance
  • Simulation and optimization of the best logistic solution according to client specific requirements
  • Optimization of ship performance along the route and evaluation of fuel saving and CO2eq emission reduction
  • Evaluation of potential constraints: port, quay, tide constraints analysis
  • Containers logistics management according to client needs
Category

Innovation

PARTNERS : Louis Dreyfus Armateurs & VPLP

START OF PROJECT : 04/2023
END OF PROJECT : ongoing

MAIN CARACTERISTICS
OF THE SHIP

SHIP TYPE : Container ship

OVERALL LENGTH : 197.25 m

OVERALL WIDTH : 32.00 m

DRAUGHT (SCANTLING) : 11.00 m

CAPACITY : 2479 TEU

MATERIAL : Steel

PROPULSION : Dual fuel (Methanol or MDO) with wings

1x shaft line with CPP propeller

6x 363 m² Oceanwings

SERVICE SPEED : 13 knots

MAXIMAL SPEED : 16 knots without wings

OUR MISSIONS

Selecting a propulsion architecture and technology

Integrating methanol fuel systems

Enhancing energy efficiency and reducing greenhouse gas emissions

Managing the interface with SDARI

Contributing to both commercial and technical presentations

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We're here to help. Contact us for any information you may require.

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]]> https://www.alwenashipping.com/en/projet/windtainer-concept/feed/ 0 Jumboisation & LNG retrofit https://www.alwenashipping.com/en/projet/jumboisation-lng-retrofit/?utm_source=rss&utm_medium=rss&utm_campaign=jumboisation-lng-retrofit https://www.alwenashipping.com/en/projet/jumboisation-lng-retrofit/#respond Wed, 10 Jan 2024 10:58:30 +0000 https://www.alwenashipping.com/?post_type=portfolio_page&p=42501

Jumboisation & LNG retrofit

PRESENTATION OF THE PROJECT

This new conversion concept uses Mark III membrane tank technology, developed by GTT, while its integration into the vessel has been designed and validated by Alwena Shipping. CHI Zhoushan shipyard validated the operational aspects of the project, including the work sequence, planning and workforce resources.

 

The length increase of the ship (or jumboization), combined with the LNG conversion of the propulsion and electrical generation systems enables a reduction in the operating costs of the ship, which limits the financial impact of the immobilization period required for the retrofit operation.

Category

Innovation

CLIENT : self-financed concept

PARTENAIRES : GTT, Cosco

START OF PROJECT : 02-2021
END OF PROJECT : 02-2022

CERTIFICATION

The consortium has received approval in principle (AiP) from the classification society Bureau Veritas (BV) for a new LNG conversion concept, combined with the length increase of the vessel for very large container ships.

OUR MISSIONS

Integration of the LNG tank into the new section of the vessel

Review of on-board systems to be modified and added to adapt the vessel to LNG use

Fuel consumption calculations and equipment sizing (modifications and additions)

Verification of compliance with specific regulations for LNG-powered vessels

Promotion of the concept to investors and maritime-related organizations

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]]> https://www.alwenashipping.com/en/projet/jumboisation-lng-retrofit/feed/ 0 F3 (F Cube) https://www.alwenashipping.com/en/projet/f3-ferry-foil/?utm_source=rss&utm_medium=rss&utm_campaign=f3-ferry-foil https://www.alwenashipping.com/en/projet/f3-ferry-foil/#respond Fri, 29 Dec 2023 08:52:30 +0000 https://www.alwenashipping.com/?post_type=portfolio_page&p=42056

F3 (F Cube)

PRESENTATION OF THE PROJECT

In 2020, VPLP Design and Alwena Shipping began joint development of a 30-meter catamaran concept dedicated to passenger transport (tourist activities and offshore personnel transport). In 2021, Mer Concept, the mission-driven company founded by François Gabart, has joined forces with VPLP Design and Alwena Shipping to develop a 24-meter platform that is completely carbon-free, with batteries and hydrogen.

This ferry is capable of cruising at 45 knots, thanks to the use of foils. Its fuel consumption can be reduced by up to 40% compared with conventional hulls, while reaching speeds that rival helicopters or other fast means of transport.

Category

Innovation

PARTNERS : VPLP et Mer Concept

START OF PROJECT : mi-2020
END OF PROJECT : en cours

MAIN CARACTERISTICS
OF THE SHIP

SHIP TYPE : Ferry

OVERALL LENGTH : 24m or 30 m 

OVERALL WIDTH : 9.8 m

DRAUGHT (SCANTLING) : 3.0 m

CAPACITY : 200-300 pax

MATERIAL : Aluminium – Composite

SERVICE SPEED : 45 knots

OUR MISSIONS

Propulsion study and CO2 reduction (hybrid, hydrogen, methanol)

Drafting of technical specifications

Quotation for building sites

Any questions about this project ?

We're here to help.
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fx-louis-alwena
francois-xavier.louis@alwenashipping.com +33 (0)7 67 25 07 06

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Trade Wings 2500

PRESENTATION OF THE PROJECT

Initiated by Alwena Shipping and in consortium with naval architecture firm VPLP Design and engineering firm SDARI, the Trade Wings 2,500 unveiled in 2021 is an innovative concept for a “small” 2,500 TEU container ship designed to meet 2050 greenhouse gas emission targets. 

It features hybrid-electric propulsion (LNG and MGO), with six Oceanwings and azimuth thrusters, enabling a reduction in CO2 emissions of around 35% on the scale of an Atlantic crossing. Its engines are easily adaptable to cleaner alternative fuels (LNG, ammonia, hydrogen, etc.).

The wings can be retracted into the ship’s interior without interfering with commercial operations. The “elevator” system was developed by Alwena Shipping, VPLP Design and Oceanwings (formerly Ayro).

Category

Innovation

PARTNERS : SDARI, VPLP et AYRO

START OF PROJECT : mid 2020
END OF PROJECT : spring 2021

MAIN CARACTERISTICS
OF THE SHIP

VESSEL TYPE : Container ship
LENGTH OVERALL : 197.25 m
MOULDED BREADTH : 32.2 m
DRAUGHT (SCANTLING) : 10.50 m
CAPACITY : 2449 DWT
MATERIAL : Steel
PROPULSION :

LNG/MGO-electric hybrid with wings

2x azimuth thrusters
6x 363 m² Oceanwings

SERVICE SPEED : 16 KNOTS

MAX SPEED : depending on wind

CERTIFICATION

Trade Wings 2050 received approval in principle (AIP) from Bureau Veritas in spring 2021, validating the relevance and all the studies carried out for such a concept.

OUR MISSIONS

Project management and coordination of interactions between VPLP Design and SDARI

Management of the interface with Bureau Veritas to obtain the AIP.

Choice of propulsion system

Choice of machine architecture

Study and optimization of on-board propulsion and electrical generation systems (including interaction with Oceanwings AYRO wings)

Study of the AYRO wing retraction system

Any questions about this project ?

We're here to help. Contact us for any information you may require.

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LNG fueled eco feeders for container market

PRESENTATION OF THE PROJECT

Design and marketing of a serie of LNG fueled eco-feeders: 1200, 1400 and 3400 Teu container ships, in cooperation with SDARI, China.

 

Unsuccessful attempt to order the ships directly and put them on charter market same type, and to buy and charter 3 x 4250 Teu container vessels. Roadshow for financing the vessels, the intention being to get substance with 2nd hand tonnage before moving again to new ships.

 

Project failed due to targeted charterer withdrew in June 2020, despite low market. Market went sky high 6 months later…

Category

Innovation

CLIENT : auto-financed concept

PARTNER : SDARI

START OF PROJECT : 09-2018
END OF PROJECT : 07-2020

OUR MISSIONS

Review of existing fleet and orderbook to identify future demand for container feeders

Design with SDARI three types of feeders, LNG Fueled : 1200, 1400 and 2400 teu.

Market the vessels designs to ship operators

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