South Korea's ₩1.35 Quadrillion Chip-AI Plan Hits Infrastructure Ceiling; Single Megacluster Demands 25% of Seoul's Power
If power becomes the binding constraint, Samsung and SK Hynix will prioritize fab nodes for advanced logic over commodity DRAM — squeezing DRAM capacity at the moment when US defense procurement (munitions, automotive, consumer electronics) is pulling inventory. South Korea's inability to execute the full ₩1.35 trillion plan tilts supply-side advantage toward TSMC and Intel foundry services, both of which have clearer US power-grid access. Watch whether Samsung or SK Hynix announces a US or Southeast Asia node acceleration in response to Seoul's infrastructure bottleneck.
Samsung and SK Hynix cannot execute their fab expansion roadmaps if the grid cannot absorb the load — and South Korea's power authority has not committed to the capacity upgrades required.
This is a hard constraint, not a timing issue. A single megacluster needs 25% of Seoul's total power draw; if the Korean government cannot guarantee grid expansion on the fab timeline, both chipmakers will either compress capex or relocate nodes outside South Korea. The next inflection is whether the Ministry of Trade, Industry and Energy issues a binding infrastructure commitment by Q4 2026 — silence means capex delays cascade into 2028.
Has South Korea's power authority (Korea Electric Power Corporation) issued a formal grid-expansion schedule tied to the megacluster timeline, or are fab operators still negotiating with the government on infrastructure guarantees?
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