Jan De Nul Group said it has installed all 20 foundations for the 120-megawatt (MW) Formosa 1 Phase 2 wind farm offshore Taiwan.
As part of the Dutch company mobilized the Seaway Yudin to install the foundations as part of its EPCI contract for building of the overall balance of plant.
The foundations consist of a monopile and transition piece structure with a grouted connection. The monopiles range from 752 to 1,230 tons, with a maximum diameter of 8.4 meters and a length ranging from 60.1 to 79.5 meters. Each of the transition pieces weigh 465 tons and consists of five internal platforms, an external platform and boat landing.
Over a period of less than one year, Jan De Nul completed the fabrication process, the sea transport, the load in and out at the marshaling harbor in the Port of Taichung, and finally the installation of all foundations offshore.
The parallel installation of scour protection, export and inter array cables is also well underway, Jan De Nul said.
The wind farm is owned by Formosa I Wind Power Co. Ltd., a partnership of Ørsted (35%), JERA (32.5%), Macquarie Capital (25%) and Swancor Holding (7.5%).
The offshore wind farm is located around 6 kilometers off the west coast of the Miaoli district in the Taiwan Strait, with water depths ranging between 15 and 30 meters. The project comprises 2 phases: phase 1 of two wind turbines with a total capacity of 8MW. Extended from phase 1, this second phase will add 20 offshore wind turbines with a total capacity of 120MW to Formosa 1's current 8MW capacity. Formosa 1 will be the first commercial-scale offshore wind farm in Taiwan before 2020.
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