Upon evaluation of all identified metastable configurations, no mixing energy difference greater than ∼25 meV was observed between the most stable geometry and the next metastable configuration of the same sodium concentration. A pronounced clustering of configurations in terms of energy is observed across all sodium concentrations, indicating a strong degeneration of site occupations in the Prussian Blue framework. To elucidate the effect of temperature, the average kinetic energy of the charge carriers at room temperature is estimated via the Boltzman law. This results in 3/2 × k B × 298 K= 0.03853 eV ≈ 39 meV, that still neglects the effects of (locally) elevated temperatures during battery operation, as well as the added driving force due to the non-equilibrium nature of the system under operating conditions. Comparing the spread in the energies of the different configurations of 25 meV with the thermal energy of about 39 meV per atom at room temperature, it can therefore be assumed that most of the sodium distribution patterns are degenerate during battery applications. Moreover, the presence of numerous energetically degenerate structures provides further evidence for the experimentally well-established high mobility of charge carriers within the Prussian Blue framework. While this does not directly estimate the energy barrier between these configurations, having a multitude of available sites for charge carriers normally facilitates mobility. Additionally, the lack of any significant long-range orderexcept for the tetragonal Prussian Blue arrangement -implies that no particular order is stabilized. As such, no additional energy contribution is imposed on the migration barrier for charge carriers to escape this order.