From Seabed Foundations to Towering Turbine Structures: ST7 Enters a Critical Construction Phase

This milestone represents more than just the transition from foundation construction to turbine tower erection. It marks the stage at which one of Vietnam's largest renewable energy projects is beginning to reveal its full scale. Every successfully installed tower section reflects outstanding construction management, seamless coordination among all project teams, and the determination to overcome the demanding conditions of offshore construction.

At the project site, the 14,000-ton installation barge, supported by an 800-ton crane, has successfully completed load testing and installed the S1 and S2 sections of the first turbine tower, bringing the project one step closer to its construction objectives.

Meanwhile, a second installation team, consisting of a 7,000-ton barge equipped with an 800-ton crane, is scheduled to arrive on site on July 12 to reinforce construction resources and accelerate the execution of subsequent activities. With two installation teams operating simultaneously and a fleet of heavy-lift equipment, the project is on track to complete the installation of all 19 wind turbines by September 30.

 
 


Groundbreaking Ceremony for the Installation of the First Wind Turbine at the ST7 Wind Farm Project

For offshore wind projects, turbine tower erection is widely recognized as one of the most critical and technically challenging phases of construction. Every component lifted into position requires not only highly specialized equipment but also favorable weather conditions, suitable tidal windows, manageable sea currents, and exceptional installation accuracy. Each successfully erected tower section therefore stands as a testament to the project's construction capabilities, engineering expertise, and the coordinated efforts of every team working offshore.

This milestone follows the successful completion of piling works for all 19 turbine foundations. From robust foundations built deep beneath the seabed to turbine towers now steadily rising above the water, the ST7 Wind Farm is becoming increasingly visible, marking a new chapter in Vietnam's journey toward clean energy development.

Once all 19 wind turbines are fully installed and commissioned, the project will supply clean electricity to Vietnam's national power grid, supporting the country's energy transition, reducing carbon emissions, and contributing to its long-term sustainable development goals.

Amid the vast open sea, where relentless waves continue to test the resilience of construction teams, the first turbine towers now stand proudly against the wind. They represent far more than steel structures forming an offshore wind farm. They symbolize the ambition to harness the power of the sea, the pioneering spirit, and the engineering excellence that Sigma Engineering continues to demonstrate through its commitment to delivering Vietnam's green energy future.