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Wärtsilä LNG Conversions

Moving towards decarbonisation with environmentally friendly fuels

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Wärtsilä Marine LNG Conversion

The marine industry is moving towards decarbonisation and along with improving efficiency switching to an environmentally friendly fuel is a viable solution. Liquefied natural gas, or LNG, is a sustainable fuel that reduces environmental risks and harmful emissions. Using LNG as a fuel can also decrease fuel costs while ensuring compliance with increasingly stringent regulations.

Whether a vessel can be converted to operate on LNG depends mainly on the space required by the LNG tanks and the additional equipment required. Wärtsilä can support you throughout the project starting from the initial feasibility calculations to full project execution.

LNG conversions

Key benefits

  • Reduction of emissions, environmental fees, and fuel costs
  • Compliance with regulations
  • Increased fuel flexibility with dual-fuel engines


    Converting a vessel to operate on LNG depends on the vessel type and space available. In most cases, the most economical option is to convert the existing engines of a vessel, but installation of new dual fuel engines is in some cases a feasible option as well. Also the fuel gas handling system needs to be installed including the bunkering station, LNG tanks and related process equipment as well as the control and monitoring system. Wärtsilä can deliver the full project from feasibility studies, financing solutions, execution planning and implementation to full engineering, procurement and construction (EPC) solutions. Since every project is unique, our approach is flexible and adaptable to your needs, resulting in the best solution for your needs. Wärtsilä’s professional project management teams have a proven track record of running smooth, successful projects. 

    Read more about our project management expertise here


    Dual fuel conversion is available for Wärtsilä Vasa 32/32LN, Wärtsilä 32 and Wärtsilä 46 engines. The complete fuel gas handling system, Wärtsilä LNGPac can be delivered for any applicable types of ship or engine, either as a standalone product or as a part of a complete propulsion system.


    Downloads & links

    Cargo ship at sea
    25 Oct 2023 · Webinar
    How to reduce methane slip – winning tactics for your maritime business
    Watch this interesting webinar and you will learn how to reduce methane slip...
    LNG as a marine fuel boosts profitability while ensuring compliance banner
    White paper
    9 pages
    White paper: LNG as a marine fuel boosts profitability while ensuring compliance
    The choice of fuel is an increasingly important decision for ship...
    Path to IMO 2050 banner
    6 Aug 2020 · Webinar
    Path to IMO 2050 and the role of LNG as a marine fuel
    LNG as the transition fuel to the decarbonized shipping and should include the safety,...


    16 Apr 2021 · Article
    4 min read
    Time to take another look at LNG conversion?
    Modern efficiency-boosting technologies can help vessel owners and operators put a big dent in their...

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