Human activity and energy demand are responsible for the majority of atmospheric emissions, so research into innovative technologies for their reduction will be of paramount interest in the coming decades. Concentrating solar plants (CSP) can convert heat from concentrated solar power into chemical energy which can then be used for several applications, such as thermal green hydrogen production. In this regard, two-step thermochemical water-splitting cycles (TWSC) using perovskite powders are pioneering technologies for contributing to decarbonise the energy sector, as these processes can reduce operating temperatures, facilitating a more efficient coupling with CSP. The present work is concerned with the evaluation of the redox capabilities of three different perovskites, selected after a screening of the powders already considered in the literature.