Building-integrated PV (BIPV) can be used as an external shading device as well as an electricity generator. In this study, the energy efficiency of the movable BIPV shading system installed over the windows has been investigated. In the first stage, the PV panels monthly electricity generation at different tilt angles and the building's monthly thermal load for the various overhang depth of windows were calculated. Based on the data obtained from these analyses, optimal condition for PV panel and overhang were determined for each month. In the next step, the geometry of the BIPV Panel was designed such that in each month the BIPV panel can provide obtained conditions. The movable BIPV shading was compared with the fixed modes include BIPV installed over the window with distance, BIPV installed over the window without distance, overhang, and no shading mode with fixed PV on the roof. The building annual thermal load integrated with the movable system, in comparison with four mentioned fixed modes is 12, 16, 15 and 20 % lower, and electricity generation, excessive to building thermal demand is 70, 142, 113, and 290 % higher respectively. The annual electricity generated by the movable PV is only 2 % higher than the fixed mode.

建筑物集成式光伏（BIPV）可用作外部遮阳设备以及发电机。在这项研究中，已经研究了安装在窗户上的可移动BIPV遮阳系统的能效。在第一阶段，计算了不同倾斜角度下的光伏电池板每月发电量以及各种窗户悬垂深度下建筑物的每月热负荷。根据从这些分析获得的数据，确定每个月的光伏面板和悬伸的最佳条件。下一步，设计BIPV面板的几何形状，以使BIPV面板每个月都能提供获得的条件。将可移动BIPV阴影与固定模式进行了比较，包括BIPV安装在有距离的窗口上方，BIPV安装在无距离的窗口上方，悬垂，屋顶上没有固定PV的遮阳模式。与上述四种固定模式相比，与可移动系统集成的建筑物年热负荷降低了12％，16％，15％和20％，而对建筑物热需求过量的发电量分别高出70％，142％，113％和290％ 。可移动光伏发电的年发电量仅比固定模式高2％。