Jan De Nul signed contract with Synera Renewable Energy for the installation of export cables on the Taiwanese wind farm Formosa 4

October 13, 2025

To bring the green energy ashore, Jan De Nul will transport, install and protect 60 kilometres of subsea cables. 55 kilometres southwest of Formosa 4, the company was also selected as the preferred contractor for export cables on SRE’s wind farm Formosa 6.

In less than a decade, Taiwan has built a capacity for offshore wind energy of more than three gigawatts, generated by 374 wind turbines¹. This puts them in seventh place worldwide. With the projects currently under construction, they are expected to hop over Belgium into sixth place this year². By 2030, Taiwan hopes to exceed a capacity of 13 gigawatts³.

Jan De Nul has been active in Taiwan since 1990 and has contributed to the development of offshore wind energy from its start in 2017.

Wouter Vermeersch, Director Subsea Cables Offshore Energy at Jan De Nul:

We have successfully delivered several fully operational wind farms through large EPCI contracts, which means that we take on the entire project, from design and procurement to construction and installation. In addition, we have supported almost all of Taiwan’s wind farm developments with a wide range of transport and installation solutions, including pre-sweep operations, subsea rock installation, and cable laying services. We have been at the forefront in supporting Taiwan towards its pathway to net-zero emissions in 2050.

We have been at the forefront in supporting Taiwan towards its pathway to net-zero emissions in 2050.

Wouter Vermeersch

Director Subsea Cables Offshore Energy at Jan De Nul

GREEN ENERGY FOR HALF A MILLION HOUSEHOLDS

Among the projects shaping Taiwan’s ambitions is the Formosa 4 wind farm, situated 20 kilometres off Miaoli County’s coast. Thirty-five turbines will generate a capacity of 495 megawatts, providing green energy to about half a million households. To bring this energy ashore, Jan De Nul will transport, install and protect 60 kilometres of submarine HVAC cables. The works will start in 2026 and continue in 2027. The company will deploy its cable-laying vessel Willem de Vlamingh.

Willem de Vlamingh, here at work on the Formosa 2 wind farm in Taiwan in 2021.

Wouter Vermeersch:

With this new contract, we continue our journey in Taiwan. And there is more. We have been appointed preferred contractor for export cables on the wind farm Formosa 6 in Taiwan, we are installing cables for the Greater Changhua 2b & 4 offshore wind farms and we are preparing the installation of export cables at Fengmiao 1 in 2026. I am proud of these new contracts with SRE, providing Jan De Nul with a continuous project portfolio outlook up to 2028 in Taiwan.

TRADE BETWEEN BELGIUM AND TAIWAN DOUBLES

This new contract comes shortly after the company received an award from the Belgian Embassy in Taiwan, highlighting its long-standing commitment to the development of offshore wind energy. Cooperation between Belgium and Taiwan has been on the rise for a number of years. According to the Belgian Embassy in Taipei, it has more than doubled between 2020 and 2025.