Assertion: hydrogen's energy density | /r/HasProperty | low
Facets:
value: very
type: DEGREE
value: relatively
type: DEGREE
Source sentences:
text: Hydrogen has a high energy density by weight but has a low energy density by volume.
text: Hydrogen has a very low volumetric energy density at ambient conditions, compared with gasoline and other vehicle fuels.
text: Although molecular hydrogen has very high energy density on a mass basis, partly because of its low molecular weight, as a gas at ambient conditions it has very low energy density by volume.
text: Because hydrogen has a relatively low volumetric energy density, its transportation, storage, and final delivery to the point of use comprise a significant cost and result in some of the energy inefficiencies associated with using it as an energy carrier.