Hyosung Deploys World-First 22.9kV SST, Expands U.S. Grid Manufacturing
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Seoul – September 09, 2026 -- Hyosung Heavy Industries has developed the world's first 22.9kV, 1.05MVA-class Solid State Transformer (SST) capable of direct connection to urban distribution networks, giving the South Korean manufacturer an early lead in a market projected to grow more than 40% annually.
AI-driven power demand pushes Hyosung to scale U.S. production
The company has invested USD 300 million to acquire and expand an ultra-high-voltage transformer manufacturing facility in Memphis, Tennessee, which will become one of the largest such production bases in the United States once expansion completes.