Parameters affecting the life cycle performance of PV technologies and systems

摘要: Abstract This paper assesses modeling parameters that affect the environmental performance of two state-of-the-art photovoltaic (PV) electricity generation technologies: PVL136 thin film laminates and KC120 multi-crystalline modules. We selected three metrics to assess modules’ performance, which are part an actual 33 kW installation in Ann Arbor, MI. The net energy ratio (NER), pay back time (E-PBT), CO 2 emissions calculated using process based LCA methods. results reveal some parameters, such as level solar radiation, position modules, manufacturing intensity its corresponding fuel mix, radiation conversion efficiency final analytical results. A sensitivity analysis shows effect on For baseline scenario, E-PBT for 3.2 7.5 years, respectively. When expected future efficiencies tested, is 1.6 5.7 years KC120, Based US 34.3 72.4 g /kW h, most effective way improve reduce input phase provided other remain constant. Consequently, use PV source during also assessed. NER supplier key this scheme. show a system can be 3.7 times higher than supplied by traditional grid reduced 80%.