About: http://webisa.webdatacommons.org/282966629

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	cost of installing the system, the cost of the energy to operate the system and some allowance for maintenance and other overheads.
http://www.w3.org/ns/prov#wasQuotedFrom	pipingdesign.com