Table of Contents
Taihan Cable & Solution has been awarded a contract for a very high voltage submarine cable project to connect new solar installations in Sinan County, Jeollanam-do, South Korea. The contract includes the manufacture, supply, and installation of 154 kV submarine cables, splices, and associated materials.
The manufacture and installation of 154 kV submarine cables
The system will allow the transmission of electricity generated by the Bigeum solar power plant and the Dogo floating solar power plant to the Anjwa substation. With this connection, the infrastructure will act as an electrical link between the islands and facilitate a more stable integration of renewable energy into the grid.
According to the company, the project was awarded to Topsolar Group , the EPC contractor in charge of the overall construction of the power plant. Taihan will be responsible for supplying the extra-high-voltage submarine cables and will also carry out the installation work.
Furthermore, the cables will be manufactured at Taihan’s Submarine Cable Plant 1 , located in Dangjin. Taihan Ocean Works will then handle the transportation and submarine laying, integrating the key stages of the project into a single operation.
This contract marks the first collaboration between Taihan Cable & Solution and Taihan Ocean Works, a subsidiary specializing in marine installations. Taihan acquired Ocean Works in July of last year to enhance its competitiveness in submarine cable projects .
Likewise, the operation will validate an integrated workflow encompassing manufacturing, transportation, and installation. For Taihan, this capability is crucial in a market where marine power transmission projects require greater technical and logistical coordination.
The new submarine cable system will connect island power grids and support the stable transmission of renewable electricity. In this case, the infrastructure will be linked to both land-based and floating solar plants, a combination that is increasingly relevant in coastal regions with limited land availability.
Furthermore, the project reinforces the role of submarine cables as critical infrastructure for connecting distributed renewable generation with substations and consumption centers.
This award adds to Taihan’s other significant contracts, including the Yeonggwang-Nakwol project. The company was also selected by the Korean government as the lead operator under the Supply Chain Stabilization Initiative for the submarine cable sector.
Taihan is currently building a second submarine cable plant with the capacity to produce 640 kV HVDC cables. The company is also considering adding another cable-laying vessel, a move aimed at strengthening its participation in large-scale national and international projects.
Among these opportunities, South Korea’s West Coast Energy Highway initiative stands out, linked to the expansion of offshore wind energy on the west coast. With this move, Taihan seeks to solidify its position as a comprehensive supplier in the global submarine cable market.
Source and photo: Taihan