Fabrication has begun on the offshore substation topside for Synera Renewable Energy’s 495MW Formosa 4 offshore wind project off the coast of Taiwan, the project consortium said.
Denmark’s Semco Maritime and Vietnam’s PTSC Mechanical & Construction (PTSC M&C) marked the milestone with a First-Cut ceremony at PTSC’s fabrication yard in Vung Tau, Vietnam, signalling the transition of the offshore substation scope from engineering and procurement into full-scale construction.
Under an EPC contract awarded in August 2025, the Semco Maritime–PTSC M&C consortium is responsible for the design, procurement, construction and commissioning of the offshore substation jacket and topside, with delivery scheduled by the end of 2027.
“Having progressed through more than a year of engineering and preparation, today’s first steel cutting marks the formal transition of the Formosa 4 project into the construction phase,” said Frank Holm, senior vice president and chief operating officer for renewables at Semco Maritime.
“From this point forward, our consortium is fully focused on delivering the project in line with the key milestones ahead,” Holm added.
PTSC M&C managing director To Ngoc Tu said the project builds on the company’s experience in Taiwan and its cooperation with Semco Maritime.
“With the experience gained from previous offshore substation projects, our teams are fully prepared to execute this scope efficiently and responsibly, contributing to the long-term development of offshore wind in the region,” Tu said.
