High-temperature superconducting (HTS) distribution and transmission line has been at the nearly there stage for almost a decade, but industry participants say the technology is now approaching wide commercial use. These proponents say the technology offers a potential solution for utilities seeking to expand distribution capacity in cramped urban settings.
http://www.ecmag.com/index.cfm?fa=article&articleID=8035 (Originally published in Electrical Contractor magazine, September 2007)