This lecture covers the principles and applications of Life Cycle Assessment (LCA) with a focus on photovoltaic systems integrated into buildings. Topics include LCA methodology, data collection, evaluation criteria, and project evaluation through reports and pitches. The course emphasizes understanding key data, conducting simplified LCAs using SimaPro, and group projects to assess system sustainability. Students will learn about the environmental impact of photovoltaic systems, project evaluation criteria, and practical applications of LCA in real-world scenarios.