Odfjell Oceanwind Moves Forward with Floating Wind Foundation Design

(OW) DNV has notified Odfjell Oceanwind that the main scantling approval of its Deepsea Semi floating wind foundation design is close to completion.

The main scantling class approval is based on the SG 11.0-200 DD offshore wind turbine from Siemens Gamesa.

The Deepsea Semi floating wind foundation design is developed for use in floating wind farms and for off-grid applications including temporary electrification of oil and gas installations in harsh environments.

The foundation is dimensioned for up to 15 MW wind turbine generators including SG 14.0-236 DD and has been developed for low-cost, industrial mass-production, Odfjell Oceanwind said.

The company said it also plans to continue towards DNV class approval of the foundation for the larger turbines soon to be commercially available for floating application.

The design basis includes all areas for floating wind farms currently in planning in the North Sea, Norwegian Sea, and Barents Sea as well as prospective areas related to the ongoing UK INTOG process and covers a range of 60 to 1,300 metres water depth.

The Deepsea Semi foundation was awarded an Approval of Principle (AiP) from DNV in January 2022.

The proprietary Deepsea Semi design has been developed for use both in Floating Offshore Wind Units (FOWUs) for wind park application as well as Odfjell Oceanwind’s fleet of Mobile Offshore Wind Units (MOWUs) for off-grid application, the company said.

Application of MOWUs for electrifying offshore oil and gas installations has potential for the decarbonization of the industry, Odfjell Oceanwind said, complementing electrification with power from shore.