NOVELTY - Hydrogen production involves combining three compositions. A hydrogen storage composition is also provided. A composition of general formula (II) contains a nitride with one or multiple cations besides hydrogen. Another composition of general formula (III) contains a hydride with one or multiple cations besides hydrogen, and the third composition of general formula (IV) contains a compound with a cation selected from alkali metals, alkaline earth metals or their mixture. A hydrogen containing stream is produced. The stable hydrogen storage composition has a compound of general formula (I).    USE - Method for producing hydrogen.    ADVANTAGE - The hydrogen production method ensures high yield of hydrogen with minimal or negligible concentration of undesirable nitrogen compounds.    DETAILED DESCRIPTION - The compound having general formula (I) is: M'xM''yNzHd    M'=a cation selected from Li, Ca, Na, Mg, K, Be or their mixture;    x=50-53;    M''=a cation of an element selected from 13 group of periodic table;    y=5-34;    z=16-45; and    d=110-177.    Provided that:    (A) M', M'', x, y, z and d are selected in such a way that electrical neutrality is protected.    Compounds of general formulae (II-IV) are: MIII1f(NHe)-cg MIa(MIIIHb)c MIIIIHh    MI, MII=CH3, Al, As, B, Ba, Be, Ca, Cd, Ce, Cs, Cu, Eu, Fe, Ga, Gd, Ge, Hf, Hg, In, K, La, Li, Mg, Mn, Na, Nd, Ni, Pb, Pr, Rb, Sb, Sc, Se, Si, Sm, Sn, Sr, Th, Ti, Tl, W, Y, Yb, Zn, Zr or their mixture;    MIIII=Li, Na, K, Rb, Be, Ca, Sr or their mixture;    h=0-2;    a=2;    b=1;and    c=0-3.    Provided that:    (A) a, b, c, e, f, g and h are selected in such a way that electrical neutrality is protected.    INDEPENDENT CLAIMS are included for:    (1) a method for producing a hydrogen containing gas stream, which involves providing a hydrogen storage system; and    (2) a hydrogen storage system, which includes a hydrogenated condition.    DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation depicting results of produced hydrogen. (Drawing includes non-English language text).