The consortium between Semco Maritime of Denmark and PTSC Mechanical & Construction (PTSC M&C) of Vietnam has secured an Engineering, Procurement, and Construction (EPC) contract with Synera Renewable Energy (SRE) for the offshore substation of the Formosa 4 wind farm, located off the coast of Taiwan. The contract was awarded in late August 2025 following extensive negotiation rounds, with scheduled delivery by the end of 2027.

Project Specifications and Scale

The Formosa 4 offshore wind farm is a 495 MW project developed by SRE, representing the company's third offshore wind initiative in Taiwan. The project aligns with Taiwan's localization policy and advances the nation's renewable energy ambitions. The consortium's scope includes design, procurement, construction, and commissioning of the offshore substation's jacket and topside components.

Division of Responsibilities

Under the partnership arrangement, Semco Maritime will lead the engineering, procurement, and commissioning of the main MV/HV electrical systems and auxiliary platform systems. The Danish company will be supported by its long-term partner, ISC Consulting Engineers, in executing these responsibilities. PTSC M&C will oversee the jacket EPC scope, procurement of remaining topside equipment and materials, and fabrication of the topside. All fabrication work will be conducted at PTSC M&C's yard in Vung Tau, Vietnam.

Industry Leadership and Track Record

The Formosa 4 contract marks the consortium's third offshore substation (OSS) project contracted in Taiwan. The partnership has previously successfully delivered the Hai Long OSS project and is currently working on the ongoing Feng Miao OSS project. With all projects reported to be on track, the Formosa 4 contract solidifies the consortium as a trusted contractor in the offshore wind supply chain and sustainability in the region.

Executive Statements

Thomas Thomsen, Senior Vice President Renewables of Semco Maritime, expressed enthusiasm about the award, stating: “Semco Maritime and PTSC M&C are excited to be awarded the Formosa 4 substation. We are proud that SRE has entrusted our consortium with this project, and we will draw on our joint experience in Taiwan to deliver a stellar result and contribute to the continued development of the Taiwanese offshore wind industry.”

To Ngoc Tu, PTSC M&C's Managing Director, emphasized the significance of the partnership, commenting: “This project marks another successful milestone for PTSC M&C and Semco Maritime. It is our honour to be trusted by SRE to contribute to such an important project in Taiwanese offshore wind industry. Our strong partnership and collaborative spirit will remain as the key to ensuring the project's success.”

The milestone reinforces the consortium's growing prominence in the global offshore wind industry, building on its established presence in Taiwan's renewable energy sector through its previous successful collaborations.

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