First offshore vessel to operate on ammonia coming this autumn
Norwegian offshore vessel owner Eidesvik Offshore has tasked Halsnøy Dokk with the conversion of the platform supply vessel (PSV) Viking Energy to ammonia-powered operations.
The conversion is planned to be completed in autumn, when the 95-meter-long vessel will continue operating for Equinor, with whom it has been on continuous contract since delivery in 2003, with the potential to reduce greenhouse gas emissions by 70% or more.
According to Eidesvik, upon completion of the retrofit, Viking Energy will be the first offshore vessel to be able to operate on ammonia, and this is the first actual project in the industry testing out ammonia as fuel for a vessel in normal operation.
Work will begin with prefabrication of steel and piping systems this spring 2026, with the scope including major structural modifications, installation and integration of a new ammonia dual-fuel engine, ammonia tank and fuel systems, and technical upgrades required for safe operation.
Wärtsilä will deliver its 25 dual-fuel engine capable of operating on ammonia and marine gas oil, while Breeze Ship Design is responsible for ship design
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