Photovoltaic technologies have shown a rapid been develop ment trend due to promote global clean energy applications. To evaluate the environment impact of solar cell during procluction and manufacturing process, crystalline silicon solar cell industry technology including passivated emitter and rear cell（PERC）, tunnel oxide passivated contact （TOPCon）solar cell and heterojunction （HJT）solar cell, and also the emerging perovskite solar cell（PSCs） , were estimated with the GaBi software and the life cycle assessment（LCA） approach. As the calculation results,typical carbon footprints of the four types of photovoltaic modules are 469.25, 474.24, 427.98 and 500.55 kg CO2/kW respectively. For crystalline silicon photovoltaic module, the carbon footprint caused by silicon wafer production is more than 50%. Currently PSCs module has a largecarbon footprint due to its low inclustriul:zation efficiency.
Key words
carbon footprint /
photovoltaic modules /
crystalline silicon /
perovskite /
life cycle
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