About: http://webisa.webdatacommons.org/284767169

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	It might cover everything end-to-end including through the grid and step down conversion to either 220VAC or 110VAC. 80% still sounds high to me.
http://www.w3.org/ns/prov#wasQuotedFrom	eetimes.com