Dong Energy selects Seajacks UK for 660-MW offshore wind job

Danish utility Dong Energy A/S intends to use the new Seajacks Scylla installation vessel for the 660-MW Walney Extension offshore wind project, the investment decision on which is yet to be made.

Offshore installation contractor Seajacks UK said Thursday it has entered into a contract for the transportation and installation of the 40 units of 8.2-MW turbines for the project’s phase I, and the 47 pieces of 7-MW turbines for phase II. The bigger turbines will be supplied by MHI Vestas Offshore Wind, under a conditional agreement, while Siemens (ETR:SIE) is the preferred supplier for the second phase of the project.

Scylla is under construction in South Korea. Seajacks International awarded the order for the offshore wind farm installation vessel to Samsung Heavy Industries (KRX:010140) two years ago. For the Walney Extension project, Scylla will be fitted with an adaptable blade rack and seafastening solution which will be quickly interchangeable between the Siemens and MHI Vestas machines. Thus, the mobilisation costs on this and future projects will be reduced, Seajacks said.

The 660-MW Walney Extension park will be built off the east coast of England, next to the existing 367.2-MW Walney offshore wind farm. The extension project has already received a contract for difference (CfD). The orders related to the project are subject to Dong’s final investment decision.

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