Wärtsilä has collaborated with marine design consultancy Houlder and hose supplier Trelleborg to develop a new system that helps transfer LNG from carrier vessels to shoreline terminals without the need for a jetty.

The new jettyless concept seeks to provide an alternative solution for transportation and bunkering of LNG on islands and other coastal areas, which currently have limited opportunities for building new harbours, quays and jetties.  

The concept is set to be released at the upcoming Gastech conference and exhibition to be held next month in Tokyo, Japan.

Wärtsilä LNG solutions sales and marketing director Kenneth Engblom said: “Wärtsilä as an EPC contractor sees this collaborative concept as being an enabler for new and smarter LNG terminal solutions, serving various small-scale LNG consumers in situations where building a jetty is not feasible or cost-effective.”

The newly developed concept allows the transfer of LNG from small to mid-scale carriers to onshore or floating storage and regasification terminals where it is not feasible to build a jetty for mooring the vessel.

It uses a floating transfer terminal, which is developed by Houlder and is equipped with a self-propelled barge to transport LNG vessels moored up to 800m offshore.

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"Wärtsilä as an EPC contractor sees this collaborative concept as being an enabler for new and smarter LNG terminal solutions."

The terminal also features an integrated transfer arm developed by Houlder and KLAW LNG.

Trelleborg Cryoline LNG floating hoses are also used to transfer the LNG and boil-off gas between the barge and any shore facility.

The floating hoses feature high flexibility, reliability, and long service life to meet the safety, flow rate, and operational availability requirements of LNG operators and contractors.

Wärtsilä also noted that the new jettyless concept requires a low investment and has quick installation capabilities.

Image: Example concept of the Wärtsilä power barge and floating storage and regasification barge (FSRB) at shore and LNG connection by floating hoses to the carrier. Photo: courtesy of Wärtsilä.