R&D milestones, lab testing, and experimental deployments
5 sources NC State, the New York Power Authority and EPRI put a 1 MW solid-state transformer on a Read More
2 sources Run on Less examined technical constraints for 350 kW+ high-power fleet charging in California, analyzing DC fast Read More
2 sources Argonne National Laboratory outlined a multi-port 1 MW+ charging concept for medium- and heavy-duty EVs in a Read More
2 sources PCIM is developing 350 kW+ ultra-fast DC charging stations in California focused on high-voltage power conversion for Read More
4 sources US Patent 3,517,300 filed at GE Schenectady in 1968 by William McMurray. Original motivation: 16.66 Hz European locomotive traction Read More
4 sources NSF Generation-III Engineering Research Center launched 2008 at NCSU. Y10 SST program led by Dr. Subhashish Bhattacharya Read More
4 sources IEEE 519-2022 sets 5% voltage THD limit at utility-customer interface. Conventional MW chargers routinely exceed 5% THD and Read More
4 sources Iron-core transformer technology, unchanged since 1886, has outlasted every solid-state challenger by offering single-step voltage conversion with Read More
4 sources The solid-state transformer has carried four different names across 50 years—electronic transformer, PETT, IUTS—still used Read More
4 sources Single-stage AC-AC solid-state transformers remain lab-only; every commercial SST shipped in 2026 uses the two-stage AC-DC-AC topology Read More