Jan De Nul Group has started offshore installation activity for the Taiwan Power Company (TPC) Offshore Windfarm Phase 1 project, or Changhua demonstration project, as it is also known
The first 12 pin piles have been installed and the first export cable has been connected to shore near Fangyuan in Changhua County on the west coast of Taiwan.
The TPC offshore windfarm consists of 21 offshore wind turbines on pre-piled jackets, each anchored to the seabed by four steel pin piles.
In the first phase of the project, Jan De Nul Group will install 44 pin piles for 11 jackets. Forty more pin piles are to be shipped from the fabrication yard in South Korea to Taiwan in the coming weeks.
To undertake the project, Jan De Nul Group has chartered the offshore installation vessel Aegir from Dutch company Heerema Marine Contractors.
Jan De Nul’s cable-laying vessel Willem de Vlamingh is installing the export cables for the project.
Due to the presence of an oyster farm nearby and an important shipping lane, the cables are being buried 21 m below the seabed. To do so, Jan De Nul Group drilled four 1-km pipes using the horizontal directional drilling technique. The landfall works were executed by two of Jan De Nul’s trenching excavators with the support of Taiwan-based Hung Hua Construction.
Taiwan Power Company awarded a consortium of Jan De Nul and Hitachi a contract for the project in February 2018. The project entails the manufacturing and installation of 21 turbines, each with a capacity of 5.2 MW.
Jan De Nul Group is responsible for the design, fabrication and installation of the foundations, installation of the wind turbines, supply and installation of the cables (onshore and offshore) and for upgrading an electrical substation. Hitachi is responsible for manufacturing, assembly and other work related to the downwind turbines selected for the project.
In June, Riviera held a series of webinars on offshore wind. These are available to view in our webinar library