为了验证双面发电组件在光环境优化的户用分布式电站的发电量优势，实验选取了2批经过户外衰减后性能稳定的组件并测量了部分双面发电组件的正背面功率，建成了光环境优化的双面发电站和常规安装方式的单面发电站，收集了2个电站1年的月度发电量数据并测量了典型位置双面发电组件的辐照度和功率数据，通过分析发现双面发电组件具有更优的峰值功率双面系数，有利于减少组件间失配损失、输出更多电能；双面发电站在各个月份均有增益，年度发电量增益达到21.53%，最高月度发电量增益约为25%，有利于分布式电站追求单位面积发电量最大化；对于拥有良好反光背景的分布式电站，不同位置双面发电组件的辐照度增益和等效峰值功率出现较大差异，改变组串连线方式有利于组件输出更多功率、电站输出更多电能。

In order to verify the power generation advantages of bifacial modules in optimized light-environment distributed power plants, two batches of modules with stable performance after outdoor degradation were selected and the peak power of both sides of some bifacial modules were measured, then a bifacial power plant in optimized light-environment and a monofacial power plant by conventional installation method were built and the monthly energy yield of the two plants were collected, at last the irradiance of both sides and the power of bifacial modules at typical locations were measured. By analyzing the difference of data, it is found that bifacial modules have better peak power bifaciality coefficient, which is beneficial to reduce the mismatch loss between modules and output more power; bifacial power plant has yield gain in all months, the annual yield gain reaches 21.53% and the highest monthly yield gain is about 25%, which is beneficial for distributed power plants to pursue maximum yield per unit area. For distributed power plants with good reflective background, the irradiance gain and equivalent peak power of bifacial modules at different locations are different, so changing the string connection is beneficial to output more power and energy yield.