10 sources A May 2026 audit found fewer than 10 commercially deployed SSTs in global revenue service, while dozens of Read More
Index of ~100 MGRID articles published May 2026 covering SST origins, manufacturers, deployments, federal programs, technology foundations, and applications.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
3 sources ABB PETT pilot on SBB Ee 933 shunting locomotive, mid-2011 deployment. Swiss Federal Office for Transport certification Read More
4 sources MIT 2024 research identifies AI accelerator loads drawing reactive power beyond what conventional transformers supply; solid-state transformers Read More