Taihan has been awarded a project from Korea South-East Power Co. (KOEN) for South Korea’s first extra-long continuous underground power grid project.

A press release said that the extra-long continuous cable technology enables the production and installation of cables exceeding 1 km in length in a single stretch, more than doubling the average production length of approximately 500 m previously used in Korea. The technology eliminates the need for intermediate cable joints, allowing a single cable to cover the entire grid section. That capability reduces manufacturing and construction costs, shortens construction timelines and enhances efficiency as well as minimizes the risk of faults, thereby improving the reliability of power supply.

“KOEN adopted this method to catch up with advanced overseas technologies and implement cutting-edge infrastructure domestically,” the release said. Taihan, based in South Korea, will also transport the 345 kV extra high-voltage cables and cable accessories, as well as provide cable installation and electrical construction. The company noted that it had successfully constructed a 400 kV underground power grid, Singapore’s highest voltage level, using cables with lengths of approximately 1.9 km.

In other news, Taihan announced that it had signed a memorandum of understanding (MOU) with Global Top-Tier Hyosung Group​ for “technical cooperation in the power industry and discovery of new business models.”

A press release said that Taihan will collaborate on the joint development and commercialization of eco-friendly new materials with Hyosung Chemical​. The plan involves developing eco-friendly polypropylene (PP) material, a next-generation cable insulation material, to achieve localization and boost their competitive edge in the global arena. That use enables a simpler cable production process than those made with traditional XLPE-insulation, resulting in cables with effective power transmission that are suitable for HVDC, a key facility for efficient long-distance transmission. Being a thermoplastic resin, the polypropylene cables are recyclable post-use and have minimal CO2 emissions during the production process, a plus in advanced markets like Europe, where carbon neutrality standards are stringent.