CTO and STO are predicted to have similar ZT due to a balance of a ∼30-40% larger PF in STO and a ∼30% smaller κ latt in CTO. On the other hand, BTO is predicted to have a lower Seebeck coefficient, conductivity and power factor to the other two perovskites at 400, 600 and 1000 K, and also has a comparable κ latt to CTO, resulting in lower ZT . This analysis demonstrates that the ZT of CTO and STO could potentially be enhanced by, respectively, improving the electrical properties, specifically the conductivity, and reducing the κ latt .