Assertion: metric system's unit | /r/ObjectUse | used for electrical energy
Facets:
value: often
type: TEMPORAL
value: the kilowatt hour
type: OTHER
Source sentences:
text: In addition, the kilowatt hour, a composite unit formed from the kilowatt and hour, is often used for electrical energy; other multiples can be formed by modifying the prefix of watt (e.g. terawatt hour).