Editing Electric power transmission (section)

=== Superconducting cables ===
[[High-temperature superconductor]]s (HTS) promise to revolutionize power distribution by providing lossless transmission. The development of superconductors with transition temperatures higher than the boiling point of [[liquid nitrogen]] has made the concept of superconducting power lines commercially feasible, at least for high-load applications.<ref>{{cite journal |doi=10.1109/77.920339 |author=Jacob Oestergaard |journal=IEEE Transactions on Applied Superconductivity |title=Energy losses of superconducting power transmission cables in the grid |year=2001 |volume=11 |issue=1 |page=2375|bibcode=2001ITAS...11.2375O |s2cid=55086502 |display-authors=etal|url=http://orbit.dtu.dk/files/4280307/%C3%B8stergaard.pdf |archive-url=https://ghostarchive.org/archive/20221009/http://orbit.dtu.dk/files/4280307/%C3%B8stergaard.pdf |archive-date=2022-10-09 |url-status=live }}</ref> It has been estimated that waste would be halved using this method, since the necessary refrigeration equipment would consume about half the power saved by the elimination of resistive losses. Companies such as [[Consolidated Edison]] and [[American Superconductor]] began commercial production of such systems in 2007.<ref>{{cite web |last=((New Scientist and Reuters)) |date=22 May 2007 |title=Superconducting power line to shore up New York grid |url=https://www.newscientist.com/article/dn11907-superconducting-power-line-to-shore-up-new-york-grid/ |website=New Scientist}}</ref>

Superconducting cables are particularly suited to high load density areas such as the business district of large cities, where purchase of an [[easement]] for cables is costly.<ref>{{cite web |url=http://www.futureenergies.com/modules.php?name=News&file=article&sid=237 |title=Superconducting cables will be used to supply electricity to consumers |access-date=June 12, 2014 |archive-url=https://web.archive.org/web/20140714161200/http://www.futureenergies.com/modules.php?name=News&file=article&sid=237 |archive-date=July 14, 2014 |url-status=dead }}</ref>

{| class="wikitable sortable"
|+HTS transmission lines<ref>{{cite web |url=https://spectrum.ieee.org/biomedical/imaging/superconductivitys-first-century/3 |title=Superconductivity's First Century |access-date=August 9, 2012 |archive-url=https://web.archive.org/web/20120812011121/https://spectrum.ieee.org/biomedical/imaging/superconductivitys-first-century/3 |archive-date=August 12, 2012 |url-status=dead }}</ref>
|-
! Location !! Length (km) !! Voltage (kV) !! Capacity (GW) !! Date
|-
|Carrollton, Georgia || || || || 2000
|-
|align=left|Albany, New York<ref>{{cite web|url=http://www.superpower-inc.com/content/hts-transmission-cable|title=HTS Transmission Cable|website=www.superpower-inc.com}}</ref>|| 0.35 || 34.5 || 0.048 ||2006
|-
|[[Holbrook Superconductor Project|Holbrook, Long Island]]<ref>{{cite web|url=http://www-03.ibm.com/ibm/history/ibm100/us/en/icons/hightempsuperconductors/|archive-url=https://web.archive.org/web/20120403014711/http://www-03.ibm.com/ibm/history/ibm100/us/en/icons/hightempsuperconductors/|url-status=dead|archive-date=April 3, 2012|title=IBM100 - High-Temperature Superconductors|date=August 10, 2017|website=www-03.ibm.com}}</ref>|| 0.6 || 138 || 0.574 || 2008
|-
|align=left|[[Tres Amigas SuperStation|Tres Amigas]]|| || || 5 || Proposed 2013
|-
|align=left|Manhattan: Project Hydra|| || || || Proposed 2014
|-
|align=left|Essen, Germany<ref>{{cite web|url=https://www.powermag.com/high-temperature-superconductor-technology-stepped-up/|title=High-Temperature Superconductor Technology Stepped Up|first=03/01/2012 &#124; Sonal|last=Patel|date=March 1, 2012|website=POWER Magazine}}</ref><ref>{{cite web|url=https://phys.org/news/2014-05-longest-superconducting-cable-worldwide.html|title=Operation of longest superconducting cable worldwide started|website=phys.org}}</ref>|| 1 || 10 || 0.04 || 2014
|}