IWS Seals CSOV Charter Deal with Siemens Gamesa

Integrated Wind Solutions (IWS), through its wholly-owned subsidiary IWS Fleet, has signed a three-year contract with Siemens Gamesa for its Skywalker-class walk-to-work commissioning service operations vessels (CSOVs).

Under the agreement, IWS Fleet will provide the CSOVs to support offshore turbine commissioning works across multiple Siemens Gamesa projects in North Europe over a three-year period, starting in 2025.

The minimum commitment under the charter agreement covers about 1,300 days with a revenue backlog of EUR 51-55 million.

“This agreement is one of the largest contracts ever awarded for walk-to-work turbine commissioning, confirming the success of our strategy to build identical and interchangeable vessels supported by a strong organisation onshore and onboard the vessels,” said Christopher Andersen Heidenreich, COO and Managing Director of IWS Fleet.

In addition, IWS Fleet has a first right of refusal to provide more vessel capacity if Siemens Gamesa has additional requirements.

The company’s first CSOV (IWS Skywalker) is en route to Europe to commence its first charter contract on the Dogger Bank offshore wind farm in the UK.


IWS Skywalker is the first of a series of six identical sister vessels, with the remaining five vessels scheduled for delivery in 2024 and 2025. The company also holds options for two additional vessels.

The CSOVs are designed by Kongsberg Maritime and equipped with the latest generation 3D compensated gangway and crane systems.

According to IWF Fleet, the hybrid-powered vessels will be among the first in the industry capable of zero-emission operations.


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