Luxembourg-based construction company Jan De Nul Group has installed all offshore wind turbines and subsea cables for the first phase of the Taiwan Power Company (TPC) Offshore Windfarm.

The company’s jack-up vessel, Taillevent, successfully installed the last 5.2MW Hitachi turbine for the 109.2MW offshore wind farm situated near Fangyuan, Taiwan.

Jan De Nul said that each of the project’s 21 wind turbines is deployed on a jacket foundation with a transition piece anchored to the seabed using four steel pin piles. The turbines are also equipped with downwind rotors.

Jan De Nul Group TPC Project director Jan Kop said: “With this major milestone, we have now reached the final stretch of the project, which has challenged us in many ways not even imaginable when we started more than three years ago.

“The Covid-19 restrictions and regulations implemented by authorities in Taiwan and around the world have affected the project, but we have always continued with great commitment [to] finalising the installation of the cables, jacket foundations and wind turbines.”

In 2018, Jan De Nul and Hitachi signed the contract to manufacture and install offshore wind turbines at the project.

Jan De Nul was in charge of the foundation design, fabrication and installation, wind turbine installation and the supply and installation of cables off and onshore, as well as upgrading an electrical substation.

Hitachi was responsible for the manufacturing, assembly, installation of the turbines among other works.

A consortium of the two companies will operate and maintain the offshore wind farm over a period of five years.

Jan De Nul started construction works of the offshore wind farm in September 2018 with the preparatory onshore cable duct installation works.

Last June, the company installed the first pin piles and connected the first export cable to shore.

By early last August, the first jacket foundation was installed and anchored to the seabed. The following month, the first wind turbine at the project was erected.