LS Cable & System said on the 15th it won a turnkey contract for phase two of the East Coast–Seoul metropolitan area high-voltage direct current (HVDC) project led by Korea Electric Power Corporation (KEPCO). The East Coast–Seoul metropolitan area HVDC project is a national core power grid initiative to stably supply large-scale electricity produced on the East Coast to the Seoul metropolitan area.

An LS Cable & System employee inspects the Donghae–Singapyeong construction site, where 500kV-class HVDC with the world's highest transmission capacity is being deployed. /Courtesy of LS Cable & System

LS Cable & System will take part in phase two on the East Coast–East Seoul section, following phase one in 2024 on the East Coast–Singapyeong section. The total supply is about 234 billion won, with about 88 billion won for phase one and about 146 billion won for phase two.

HVDC is considered a key technology for the global energy transition because it has lower transmission losses than alternating current (AC) and is advantageous for long-distance, high-capacity transmission. As investment expands in AI data centers and advanced industries, the importance of transporting large amounts of power is growing, and HVDC is emerging as a core technology for national power infrastructure.

Kim Hyeong-won, head of the energy and construction business division at LS Cable & System, said, "Because HVDC projects are directly tied to the stability of the national power grid, proven commercialization experience on actual grids is as important as technical capability," and added, "Based on our experience carrying out major HVDC projects at home and abroad, we will actively participate in the West Coast energy expressway project."

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