Assertion: fuel cell's cost | /r/HasProperty | about $2.20/kg
Facets:
value: to $3.08/kg.[needs update
type: OTHER
Source sentences:
text: As of 2002, most hydrogen is produced on site and the cost is approximately $0.70/kg and, if not produced on site, the cost of liquid hydrogen is about $2.20/kg to $3.08/kg.[needs update]