Seatrium says it has secured Approval-in-Principle (AiP) from American Bureau of Shipping (ABS) for its 500MW offshore substation concept, designated OSS-500A, with the company citing scalability and alignment with the highest international standards.

The company describes the approval as its first OSS AiP for an HVAC platform and links the milestone to its work advancing renewable solutions and delivering value for clients.

According to Seatrium, the OSS-500A adopts a modular architecture and a class-proven design intended to accommodate varied water depths, grid set-ups, and project scales. The concept also incorporates robust structural design and advanced electrical systems, alongside expandability aimed at supporting increasing offshore wind capacity.

Seatrium adds that the approach is designed to support safety, reliability, and cost efficiency over the asset lifecycle while mitigating technical risks. The company says the AiP reinforces its technical leadership in offshore wind assets and its continued focus on innovation and the energy transition.