WIND CHALLENGER 4 AIP-1

CASE STUDY

WIND CHALLENGER |
Approval in Principle (AiP) Obtained for a New LNG Carrier Equipped with 4 Units

Project Overview

Mitsui O.S.K. Lines, Ltd. (MOL) has obtained Approval in Principle (AiP) for a new LNG carrier equipped with four hard sail wind propulsion systems, known as "Wind Challenger." This project is a joint development effort with South Korea's HD Hyundai Heavy Industries (HHI) and Samsung Heavy Industries (SHI).

The new vessel design maximizes fuel efficiency by positioning the bridge at the front of the hull, allowing for an increased number of Wind Challenger units and optimized placement. This contributes significantly to reducing fuel consumption and greenhouse gas (GHG) emissions.

Key Points of this Project

  • Evolution from two Wind Challenger units on conventional LNG carriers to four units, maximizing fuel efficiency.
  • Expected fuel savings of up to 30% per voyage and an annual average of 15–20%.
  • A significant step toward achieving the MOL Group's goal of "Net Zero Emissions by 2050.

Technologies and Services Utilized in this Case Study

Vessel Overview

Vessel Overview Approval in Principle (AiP) Obtained for a New LNG Carrier Equipped with 4 Wind Challenger Units
Approval in Principle (AiP) Obtained for a New LNG Carrier Equipped with 4 Wind Challenger Units

Background of the Project

MOL is advancing plans to deploy 25 vessels equipped with Wind Challenger units by 2030 and 80 vessels by 2035, as part of its commitment to achieving net zero emissions by 2050. This project promotes the development of next-generation vessel designs utilizing wind energy as part of MOL's low- and zero-carbon technology initiatives aimed at reducing environmental impact.

Related Events

An exhibition and AiP presentation ceremony for this project were held at the "Gastech Exhibition & Conference 2025" in Milan, Italy, from September 9 to 12, 2025. Highlights from the event are available here:

 →FSRU & FLNG: MOL’s Gas Value Chain Strategy and Gastech 2025 Highlights



Additionally, MOL's official YouTube channel features a video introducing the new LNG carrier equipped with four Wind Challenger units. Be sure to check it out!

Related Solutions and Services

WIND CHALLENGER

Mitsui O.S.K. Lines (MOL) has developed the Wind Challenger, which converts wind energy directly to a vessel propulsion force through an extensive use of the latest technologies. Wind energy is clean and unlimited. We aim to drastically reduce greenhouse gas emissions by converting wind energy to propulsion force for ships. In October 2022, the 1st vessel, “SHOFU MARU” was delivered and started operation.

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WIND HUNTER

This is an ultimate zero emission project under the Wind Challenger Project, currently in progress with MOL.
Offshore wind energy from sails is used not only as a propulsive force for the vessels, but also for the generation of hydrogen. We are studying ways to supply hydrogen to users on shore by combining this system with fuel cell, etc.

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Download & Consultation

Wind Challenger Service Overview

download materials about outlines the Wind Challenger, including its structure and how it is propelled by wind.

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