A combustible energy carrier is an energy carrier that releases energy from a material entity in form of heat or work, by chemical reaction with other substances.
An energy storage function is the function of an artificial object that has been engineered to contain energy for later usage whereby input energy and usable output energy are of the same type.
A nuclear energy carrier is an energy carrier used in nuclear power stations to produce heat for steam turbines. Heat is created when the nuclear fuel undergoes nuclear fission.
Primary energy carrier disposition is an energy carrier disposition of material entities that are extracted directly from natural resources or that are natural energy flows.
Secondary energy carrier disposition is an energy carrier disposition of material entities that are manufactured from primary energy carriers or from a different form of secondary energy carriers.
BFO 2 Reference: Dispositions exist along a strength continuum. Weaker forms of disposition are realized in only a fraction of triggering cases. These forms occur in a significant number of cases of a similar type.