Seatrium has been awarded a contract to carry out the major conversion and integration of five of Karpowership's third-generation, hydrogen-ready Whale Class Powerships. The first vessel is targeted to arrive at Seatrium's Tuas Boulevard Yard in December 2027.
What Seatrium will do
Seatrium's scope covers equipment integration, mechanical completion and pre-commissioning works. Engineering activities are already underway, and the two companies are working together to move the project into its execution phase step by step.
Seatrium said this is its first major conversion and integration job on Karpowership's Whale Class vessels.
The vessels
Powerships are floating power plants. They carry hydrogen-ready multi-fuel generation systems and integrated onboard substations that connect directly to national electricity grids. Karpowership's plug-and-play design means a unit can start generating electricity in as little as 30 days.
The Whale Class is the company's highest-capacity design. Each vessel is engineered to deploy up to 600 MW of grid-ready power.
Background to the deal
The contract follows a Letter of Intent signed in August 2025. That letter provided for three FSRU conversions and the potential integration of up to six new-generation Powerships. An FSRU is a floating storage and regasification unit.
Seatrium and Karpowership have worked together since 2018. In that time Seatrium has delivered seven FSRU conversion projects to Karpowership. The eighth and ninth were secured this year.
Company comments
Alvin Gan, Executive Vice President for Repairs and Upgrades at Seatrium, called the award a "significant milestone" and said Seatrium brings its complex vessel integration and offshore engineering capabilities to the project.
Gokhan Kocak, Chief Technical Operations Officer at Karpowership, said the Whale Class vessels reflect the company's commitment to innovation and energy security, and described Seatrium as an ideal partner given its expertise in complex vessel integration.
