
WTG & Tower s
80x Siemens Gamesa Renewable Energy (SGRE) 8.0-167 Direct Drive (DD) WTG, with a rotor diameter of 167m and a hub height of 87m, were chosen for the project. Each WTG generates 8 MW, leading to a total capacity of 640 MW. These WTGs feature improved moisture resistance and a new cooling system, making them suitable for tropical climates and harsh environments.

Foundations
80x monopile foundations, with a diameter of 8m and equipped with transition pieces connecting the monopile foundation to the WTG, were chosen for the project. During operation, only the transition pieces are visible above water and these are equipped with a dedicated boat landing and a working platform for easy maintenance. During construction the prefabricated monopiles were stored at Mailiao, Anping and Taichung ports, while transition pieces were stored at Kaohsiung port. Steelwind, Formosa Heavy Industries were responsible for the supply of monopiles, while Smulders and CTCI-Machinery were responsible for the supply of transition pieces.

Cables
To connect the individual 80x WTGs and transmit the generated electricity ashore to the 2x onshore substations, 270km of submarine cables, split into 12 strings were installed. State-of-the-art horizontal directional drilling (HDD) technology was used to install approx. 3,500m of ducts underneath of the existing dykes at the 2x landfall locations, in order to minimize the impact on the environment. Seaway 7 was responsible for the cable installation works, whilst cooperating with Sumitomo Electric Industries for the supply of approx. 100km of 66kV inner array grid cables and with LS Cable & Systems for the supply of approx. 170km of 66kV export cables.

Substations & Grid Connections
Substations are a complex unit, funneling the generated electricity from the WTG and serving as the central grid connection point. GE Vernova designed and built two identical onshore substations, each connecting 40x WTG, located in Taixi and Sihu Townships in Yunlin County on Taiwans west coast. Each substation has 4x 66/161kV transformers, and various support infrastructure and equipment, located in dedicated service rooms. The onshore substations are connected to the TPC Taixi and TPC Sihu Distribution Substations via two 4km, 161kV land power cables.