About: http://webisa.webdatacommons.org/210235738

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	Electricity, and sometimes other sources such as gas, is used to power the heat pumps and they can typically provide three to four times the amount of energy used to drive the system, depending on their design.
http://www.w3.org/ns/prov#wasQuotedFrom	2degreesnetwork.com