Following its arrival in dry dock on 11 May, extensive modification work has been carried out to prepare the vessel for operation on ammonia fuel as part of the Apollo project. The retrofit marks a significant step towards demonstrating ammonia as a scalable, low-carbon fuel solution for the maritime industry.

Several key milestones have already been completed. The existing LNG tank has been removed following a major deck cut-out operation, while two LNG engines have been lifted out through a newly established hull opening. In addition, the existing exhaust piping and associated equipment have been removed from the vessel’s starboard exhaust casing.

Work is also advancing on the installation of the new ammonia-powered systems. Foundations for the ammonia fuel tank, ammonia engine and supporting equipment have been prefabricated, and extensive piping fabrication is underway for exhaust systems, cooling water, fuel systems, bunker arrangements and other auxiliary systems.

Engine and ammonia storage tank delivered

The project has also reached an important logistical milestone with the successful delivery of the new ammonia engine and ammonia storage tank. Both units have been safely received at the yard and are currently being stored pending installation onboard.

The ongoing conversion of Viking Energy represents a key phase of the Apollo project, which aims to demonstrate ammonia-fuelled propulsion in real-world offshore operations and pave the way for broader adoption of ammonia as a maritime fuel.

All Photos: Aaron Evans / Halsnøy Dokk