Taihan Cable Wins Offshore Wind Cable Deal in Korea

Post by : Amit

Photo : X / Offshore Wind

Surging Momentum for Domestic Green Energy Manufacturing as Cable Giant Wins Major Inter-Array Deal for National Offshore Wind Farm Project

South Korea’s push to accelerate offshore wind energy received a strong boost this week as Taihan Cable & Solution Co., a leading manufacturer of high-voltage power cables, announced its selection for a high-profile domestic contract to supply inter-array cables. These cables will connect turbines across one of South Korea’s flagship offshore wind farms, enhancing the transmission of green energy to the mainland grid and anchoring domestic industrial participation in the clean energy transition.

The contract, secured through a competitive bidding process, represents a significant win for South Korea’s indigenous supply chain. It also underscores the growing role of cable technologies—specifically inter-array systems—in enabling the scale and efficiency of offshore renewable energy infrastructure. With global competition intensifying across subsea electrical components, the deal marks a major milestone for Taihan as it consolidates its leadership position within Asia’s rapidly growing offshore wind market.

Strategic Role of Inter-Array Cables in Offshore Wind Farms

Inter-array cables serve as the internal nervous system of offshore wind farms, linking individual turbines to each other and ultimately to the offshore substation. These systems must endure harsh marine environments, high mechanical stress, and challenging installation conditions.

Taihan’s win is expected to bring next-generation cable architecture to South Korea’s coastline. The cables will feature advanced insulation materials, reinforced copper conductors, and optimized load-bearing jackets to ensure reliability in turbulent offshore conditions. By deploying cables manufactured domestically, South Korea not only cuts reliance on imports but also boosts engineering control, cost competitiveness, and job creation within its national renewable ecosystem.

According to industry experts, this shift toward domestically sourced inter-array systems reflects a wider movement across Asia to localize core offshore wind components—from foundations and turbines to cables and substations.

National Context: South Korea’s Offshore Wind Goals

The contract is part of South Korea’s ambitious national energy roadmap, which targets 12 GW of offshore wind capacity by 2030—a figure that would place the country among the global top five in terms of installed capacity. The move is also aligned with the “Green New Deal” strategy, which commits billions of dollars to developing smart grids, hydrogen hubs, and carbon-neutral industrial zones.

South Korea’s east and southwest coasts offer ideal conditions for wind generation, and the government has aggressively streamlined permitting, zoning, and port infrastructure upgrades to encourage private and public investment in offshore projects.

This momentum has attracted both foreign and local developers. Yet, until recently, many critical components—including inter-array and export cables—were sourced from European or Chinese manufacturers. Taihan’s breakthrough contract shows that this paradigm is now shifting.

Taihan’s Capabilities and Industrial Footprint

Founded in 1955, Taihan Cable & Solution is one of South Korea’s oldest electrical cable producers and has steadily expanded into the global power transmission and distribution markets. The company specializes in high-voltage and extra-high-voltage cables, overhead lines, fiber optics, and other essential components for energy and telecom networks.

Over the last five years, Taihan has heavily invested in marine cable systems and subsea engineering. It operates state-of-the-art cable production facilities equipped with vertical continuous vulcanization (VCV) lines and metal sheathing systems necessary for high-quality offshore products.

Crucially, Taihan has also developed its own specialized cable-laying vessels and barges, giving it end-to-end control from design to installation. This vertical integration has been a strategic enabler in meeting project timelines and quality standards—both essential in the offshore wind sector, where weather windows and cable integrity are critical to overall performance.

Contract Scope and Technical Highlights

While the exact capacity of the wind farm has not been disclosed, industry analysts estimate that the new site will contribute at least 300–500 MW to South Korea’s national clean energy grid. The inter-array cables to be delivered by Taihan will span several kilometers and operate at 33 kV or 66 kV voltage levels, depending on turbine spacing and substation configuration.

The cables will be designed with cross-linked polyethylene (XLPE) insulation for superior thermal and electrical properties, with an outer sheath designed to withstand abrasion, corrosion, and biofouling.

Installation is scheduled to commence in early 2026, with final commissioning expected by late 2027. Taihan will also provide testing, monitoring systems, and post-installation maintenance support, reinforcing its role as a full-service provider rather than just a supplier.

Economic and Employment Impact

This contract is expected to create a ripple effect across South Korea’s cable manufacturing and offshore logistics sectors. Taihan is reportedly ramping up hiring at its key production sites and has issued tenders for subcontractors specializing in marine logistics, cable handling, and offshore engineering.

It also gives regional governments—especially in Jeollanam-do and Gyeongsangbuk-do—an industrial boost, as many offshore wind manufacturing zones and logistics hubs are located in these areas.

Furthermore, the win signals to global developers and EPC (engineering, procurement, and construction) contractors that South Korea’s supply chain can now deliver not just manpower and vessels but also critical subsea components.

Broader Market Implications and Global Reach

The move places Taihan in a stronger position to pursue export contracts across Asia, including Taiwan, Vietnam, and Japan—regions with aggressive offshore wind pipelines and a growing appetite for diversified cable suppliers.

Several nations in Southeast Asia are building hybrid wind-solar-ocean energy parks, and Taihan’s entry into high-stakes inter-array systems gives it the credibility to win contracts beyond its home market.

It also comes at a time when European cable giants like Prysmian, Nexans, and NKT are facing production bottlenecks due to overbooked order books and stretched lead times. Developers are now looking toward Asia for alternate sources—and Taihan could become a key player in this shift.

Governmental and Industry Reactions

South Korea’s Ministry of Trade, Industry, and Energy (MOTIE) hailed the contract as a “strong demonstration of domestic industrial readiness for offshore wind deployment.” In a statement, a MOTIE spokesperson said, “Taihan’s win proves that Korean companies are ready to deliver core technologies critical to energy independence and carbon reduction goals.”

Meanwhile, the Korea Wind Energy Industry Association (KWEIA) noted that this success could catalyze new investments in undersea cable R&D, testing infrastructure, and materials innovation—all essential for Korea’s green economy pivot.

Private developers, including Hanwha E&C and SK E&S, have also praised the move, noting that domestic suppliers reduce risk and promote closer coordination during the construction phase.

Rising Tides for South Korea’s Offshore Wind Future

Taihan Cable’s victory in securing this landmark inter-array cable contract for a major offshore wind farm marks more than just a business success—it’s a strategic inflection point for South Korea’s broader energy and industrial policy.

As the country scales up its offshore ambitions, locally produced cables will become pivotal in ensuring not only energy reliability but also industrial sovereignty. Taihan’s role, now validated at home, may soon grow abroad—positioning the company as one of Asia’s foremost players in the high-voltage subsea cable sector.

With cleaner currents and deeper expertise flowing into South Korea’s marine grid, the future of offshore wind appears increasingly wired for success.

Taihan, Offshore Wind Cable Deal, Korea