光伏光热技术是太阳能的主要利用方式之一，太阳能光伏光热一体化（solar photovoltaic-thermal, PV/T）系统可实现系统产电和热量的双重效益。基于不同气候区的气候特征，以商场冷凝水耦合光伏/光热系统为研究对象。在确定制冷季冷凝水量的基础上，计算分析系统一次能源节约率及环境效益，研究该系统在不同气候区的适宜性。结果表明：在寒冷地区、夏热冬冷地区和夏热冬暖地区，PV/T系统比光伏（photovoltaic, PV）系统更加高效节能。在整个制冷季中，PV/T系统的发电量均高于PV系统，海口的发电效率提升了0.53%，拉萨的发电效率提升了0.11%；PV/T系统在海口地区一次能源节约率最高，达到59.62%；青岛CO₂减排量最高，总减排量达到5.5 t。

Solar photovoltaic-thermal (PV/T) technology is one of the main utilization of solar energy, the dual benefits of the system generation and heat are realized by solar PV/T system. Based on the climate characteristics of different climate zones, the condensed water coupling photovoltaic/photothermal system of shopping mall was taken as the research object. On the premise of determining the condensing water in the cooling season, the primary energy-saving rate and environmental benefit of the system were calculated and analyzed, and the suitability of the system in different climate zones was studied. The results show that PV/T system is more energy efficient than PV system in cold region, hot summer and cold winter region and hot summer and warm winter region. Throughout the cooling season, the PV/T system produce more electricity than the PV system, and the power generation efficiency in Haikou is increased by 0.53%, and that in Lhasa is increased by 0.11%. The primary energy-saving rate of 59.62% is the highest in Haikou, and the highest CO₂ emission reduction of 5.5 t is observed in Qingdao.