Hyosung Targets U.S. AI Data Center Market With 22.9kV Solid-State Transformers

Hyosung Heavy Industries announced on September 7, 2026, that it is accelerating its entry into the United States power market for AI data centers. [1] This strategy combines the company's completed American production facilities for circuit breakers and ultra-high-voltage transformers with its solid-state transformer technology. [1] The company stated that large-scale power infrastructure investment in the U.S. is being driven by the need to replace aging grid systems and surging power demand from AI data center proliferation. [1]

The solid-state transformer (SST) utilizes power semiconductors to precisely manage voltage and current while providing the insulation functions of a standard transformer. [1] In 2022, Hyosung developed a 22.9kV 1.05MVA-class SST that can connect directly to urban distribution networks, which the company described as a world first. [1] The company intends to secure an early-mover advantage in the nascent large-capacity SST segment for data centers, citing global market research projections of an average annual growth rate exceeding 40 percent for the worldwide SST market. [1]

The aggressive move by Hyosung Heavy Industries underscores a critical bottleneck in the artificial intelligence boom: the physical power infrastructure required to sustain massive compute loads. By marrying localized American manufacturing with advanced solid-state transformer technology, the company is attempting to position itself ahead of competitors in a nascent but rapidly growing large-capacity segment. This highlights a shift from simply building power generation capacity to precisely controlling urban power distribution for high-demand AI facilities. What the sources don't address: the exact manufacturing output capacity of Hyosung's completed American production bases.