About: http://webisa.webdatacommons.org/7050342

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	With demand understandably peaking, other sources, such as coal and gas, had to fill the gap.
http://www.w3.org/ns/prov#wasQuotedFrom	slate.com