The SUNREY project addresses the causes that are holding back the deployment of perovskite photovoltaics, such as their poor stability, short lifetime in the field and the harmfulness of their materials on health and the environment, in order to solve them. The aim of this project is to combine high efficiency with a long lifetime and to reduce emissions and manufacturing costs compared to Si. This will generate new opportunities for companies in the consortium, such as independent power sources, Building Applied Utility Power (BAPV) Building-Integrated Photovoltaics.