Damen converting PSV into fish feed carrier for Eidsvaag

Malcolm Latarche

Malcolm Latarche · 31 January 2020


Eidsvaag, a Norwegian company specialising in distribution of fish feed, has contracted Damen to carry out a conversion project. Damen Shiprepair Amsterdam (DSAm) is converting and lengthening a PSVl into a fish feed carrier that will improve efficiency and sustainability in the Norwegian aquaculture industry.

The project also includes increasing the beam with side boxes to give additional stability and extra cargo capacity. Each side box will be 1.2m. Damen will install 35 silos as well as cargo holds. When complete, the vessel will be able to transport 2,800 tonnes of feed at a time. there will be five new cranes as well as the discharger installed.


“One of the main things that made Damen stand out as a strong candidate in the tender process was their previous experience with the vessel,” explained Vidar Eidsvaag, general manager and owner at Eidsvaag. The vessel, now renamed Eidsvaag Opal, was part of a six-vessel order Damen built for the offshore supply company, World Wide Supply, and was delivered in 2013.

The tender was won by Damen Shiprepair Amsterdam (DSAm), which was the most suitable yard in the group for the project, based on its facilities and its proximity to Niron Staal, Damen’s specialist steel fabricator. And the conversion does involve a lot of steelwork. The Eidsvaag Opal arrived at the yard in the final weeks of 2019. The first order of business was the removal of the main deck, after which the vessel was cut in half to allow space for the fitting of a new 4.9m section. Some 31 new steel sections are now being inserted into the hull and divided into sponsons and the new big bag hold. In total, 650 tonnes of new steel will be fabricated by Niron Staal and installed in Eidsvaag Opal while she is in drydock at DSAm. 300 tons of redundant ship’s structure will also be removed as part of the conversion process.

“It is really helping speed up the project with Damen already being familiar with the design of the ship,” continued Eidsvaag. “Of course, there were other reasons for their success in the tender process. In addition to knowledge of the actual vessel, Damen was able to demonstrate the successful completion of a relevant conversion for the aquaculture industry.”

Damen’s previous track record includes the conversion of a Damen Combi Coaster into a fish feed transportation vessel. This involved the shipbuilder shortening the vessel in order to provide the added manoeuvrability necessary for operating within fish farms. The vessel was then outfitted with 64 silos for the transportation of different types of fish food.

“We really appreciate the close cooperation that we have with the client,” said Tjeerd Schulting, managing director at DSAm. “We sailed with the client for a trip, which is something that we do not often have the opportunity to do, and it gave us a close understanding of the way the client works. This project really is a joint effort between the client and ourselves.”

The Journal

Published every February the journal is now recognised as the highest quality publication that covers all aspects of maritime technology and regulation and a must read for the industry.

More Details