About: http://webisa.webdatacommons.org/331056729

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Because the SMES, like a battery, is a DC device, a power conditioning system is generally required in order to interface it to an AC utility grid.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com