Abstract

This study presents a detailed Life Cycle Assessment of the RESHeat system installed in a residential building in Italy. The system integrates photovoltaic/thermal modules, a high-performance heat pump, thermal storage, and intelligent control systems to supply heating, cooling, and domestic hot water. The ReCiPe 2016 Midpoint (H) methodology was applied to assess the environmental impacts across the entire life cycle: construction, operation, and end-of-life stages. The results indicate that total greenhouse gas emissions from the construction phase can be reduced by 80.6 % through the implementation of reuse strategies. Fossil resource consumption decreases by 86 %, and water use is reduced by 65 %. The analysis identified construction activities and Photovoltaic/Thermal modules as the components with the highest environmental burdens, together contributing to over 80 % of the impacts in several key categories.