KT has announced a major five-year plan to expand its AI data center capacity to at least 500 megawatts, a move driven by a convergence of policy, technology, and infrastructure realities.
This ambitious expansion is timed perfectly with new government support. The 'AIDC Special Act', passed just days before KT's announcement, is a game-changer. It streamlines the complex and time-consuming process of getting permits for data centers, especially in non-metropolitan areas. By creating a 'one-stop shop' for approvals, the law directly enables KT's 'two-track' strategy: building massive, power-hungry facilities outside the capital where power is more accessible, while maintaining smaller, specialized sites within Seoul.
Simultaneously, a technological shift is forcing the industry's hand. The latest AI accelerators, like NVIDIA's H100 and B200 GPUs, consume enormous amounts of power and generate intense heat. Traditional air cooling is no longer sufficient for racks packed with these powerful chips. This makes liquid cooling, a technology KT has already commercialized at its Gasan data center, a necessity. KT's plan to scale up is therefore not just about adding space, but about building the next generation of infrastructure capable of handling the demands of modern AI.
The 'two-track' plan is also a pragmatic response to a hard physical constraint: the electrical grid. The power grid in the densely populated Seoul metropolitan area is already strained, with significant delays in building new transmission lines from power plants on the east coast. Securing hundreds of megawatts for a new data center in this region is nearly impossible. KT's strategy to locate its largest facilities in other regions is a direct acknowledgment of this reality, turning a constraint into a strategic advantage by tapping into available power reserves elsewhere.
This major investment is backed by the strong performance of KT Cloud, which saw its revenue grow over 27% last year. Despite this, KT's stock trades at a significant discount compared to its telecom peers, suggesting investors are still waiting to see if the company can execute this large-scale plan. In essence, KT's 500 MW pledge is a calculated move made at a critical juncture where favorable legislation, technological imperatives, and grid limitations all point in the same direction.
- AIDC (AI Data Center): A data center specifically designed and optimized to handle the massive computational and power demands of artificial intelligence workloads.
- Two-Track Strategy: KT's plan to build different types of data centers in two different kinds of locations: large, high-power facilities outside the capital, and smaller, lower-power sites within the Seoul metro area.
- Liquid Cooling: A method of cooling computer components using a liquid coolant, which is much more effective at dissipating heat than traditional air cooling and is essential for high-density AI hardware.