The Photovoltaic Barometer is a periodic observatory promoted by Elmec Solar to analyze the state of dissemination and evolution of photovoltaics in Italy. The project aims to provide reliable data, market insights, and trends related to the energy transition, offering businesses, families, and stakeholders a knowledge tool to guide their choices towards more sustainable energy. Through surveys, territorial research, and the processing of data from qualified sources, the Barometer monitors key aspects such as: the level of adoption of photovoltaic systems in different areas of the country; the energy awareness of citizens and companies; the main obstacles and motivations for choosing renewable energies; the impact of regulations and incentives on investment decisions.