Cassette based systems and methods of hydrogen storage, distribution, and
recovery are disclosed. A cassette or other container may contain a
hydrogen storage or storing material. Information may be stored in the
material and subsequently read or accessed. A probe may be used to
interrogate the material. The hydrogen content or other characteristics
of the material may be determined based on the interrogation. A hydrogen
dispensing unit may contain a depleted cassette acceptor to accept
depleted cassettes and a charged cassette dispenser to dispense charged
cassettes. The dispensing unit may be implemented in a hydrogen retail
store or as a standalone unit. The retail store or the unit may connect
to a hydrogen network and implement various business methods, as
disclosed herein.