Assertion: hydrogen | /r/HasProperty | an energy source
Facets:
value: in itself
type: OTHER
value: really
type: DEGREE
Source sentences:
text: For that reason, hydrogen is really an energy carrier or storage medium rather than an energy source in itself – and the climate change impact of using it depends on the carbon footprint of the energy used to produce it.
text: Is hydrogen a source of energy?
text: Hydrogen is one source of energy that can be generated on demand.