In terms of future work, the relatively good agreement between our calculations and experimental measurements indicates that our modelling approach should be applicable to other perovskites (and other oxides more generally), making it a valuable complement to experiments in the ongoing search for high-performance oxide thermoelectrics. Future studies could include, among other things, further exploration of the impacts of composition and structure type on the transport properties and figure of merit, and of the impact of chemical doping or alloying on the κ latt to help determine the best dopants for controlling the heat transport while optimising the electrical properties.