This paper investigates the performance of a single-sloped pitched roof building-integrated photovoltaic (SSPR-BIPV) system. A typical rural building having a roof area of 60 sq. m is considered for the study. It was observed that the considered roof area could accommodate, nearly 7 kW BIPV system, and on the other side, most buildings seen in Malaysia are of the roof based constructed at different roof pitches. Considering this, a SSPR-BIPV is proposed and analyzed in seven different pitched roofs (the steepness of roof slopes are 15°, 18°, 22°, 30°, 35°, 40°, and 45°) under the tropical weather conditions in Malaysia. As per the study constraints, the 7 kW CdTe BIPV under seven different pitched roofs is capable of generating electricity within the range of 9510 to 7710 kWh. Performance ratio and energy losses for seven pitched roofs were identified to be in the range of 74.92 to 76.37% and − 23.63 to − 25.08% respectively. From the results, it is observed that in a BIPV system, as the building roof pitch increases, the energy yields and performance ratios tend to decrease, thereby increasing the overall energy losses. Hence, this study reveals that there exists a considerable influence of pitched roof over the BIPV performance and suggests using lower roof pitch angles during the installation of BIPV roof especially in the case tropical weather conditions.

中文翻译：

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热带气候条件下单斜斜屋顶碲化镉（CdTe）建筑一体化光伏系统的性能

本文研究了单斜斜屋顶建筑一体化光伏 (SSPR-BIPV) 系统的性能。本研究考虑了屋顶面积为 60 平方米的典型农村建筑。据观察，所考虑的屋顶面积可以容纳近 7 千瓦的 BIPV 系统，另一方面，在马来西亚看到的大多数建筑物都是以不同屋顶间距建造的屋顶。考虑到这一点，提出了一种SSPR-BIPV，并在热带天气条件下在七种不同的斜屋顶（屋顶坡度为15°、18°、22°、30°、35°、40°和45°）进行了分析在马来西亚。根据研究限制，七个不同斜屋顶下的 7 kW CdTe BIPV 能够产生 9510 至 7710 kWh 的电力。七个斜屋顶的性能比和能量损失分别在 74.92 至 76.37% 和 - 23.63 至 - 25.08% 的范围内。从结果可以看出，在 BIPV 系统中，随着建筑物屋顶间距的增加，能量产量和性能比趋于降低，从而增加了整体能量损失。因此，这项研究表明斜屋顶对 BIPV 性能存在相当大的影响，并建议在安装 BIPV 屋顶期间使用较低的屋顶倾斜角，尤其是在热带天气条件下。从而增加整体能量损失。因此，这项研究表明斜屋顶对 BIPV 性能存在相当大的影响，并建议在安装 BIPV 屋顶期间使用较低的屋顶倾斜角，尤其是在热带天气条件下。从而增加整体能量损失。因此，这项研究表明斜屋顶对 BIPV 性能存在相当大的影响，并建议在安装 BIPV 屋顶期间使用较低的屋顶倾斜角，尤其是在热带天气条件下。