Efficiency of Vertically Installed Solar PV Panels

IF 1.204 Q3 Energy Applied Solar Energy Pub Date : 2024-07-01 DOI:10.3103/s0003701x24600164

Warkaa Omar Abed Al-Rashidy, Aasim A. Azooz

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Abstract

Driven by the scarcity of sufficient rooftop areas for PV installation in urban locations, this work assesses the performance and economic considerations of alternative vertical PV installations. A quantitative model-based analysis was conducted to estimate the percentage decrease in output of vertically installed PV modules. The results demonstrate that although vertical installations, driven by a shortage of rooftop space, do indeed result in reduced output, this decrease is deemed acceptable in many scenarios. For installations at high and medium latitude angles above 45°, vertical PV output reaches between 80 to 90% of that at the optimum tilt angle installation, and even surpasses horizontally installed panels for these latitudes. At latitudes between 25° and 45°, the vertical output ranges from 60 to 80% of the optimum, dropping to approximately 50% at latitudes within 20° of the equators. In all cases, the output loss can be easily offset with only a few percent additional cost associated with installing additional PV panels. Additionally, vertical systems collect less dust and require less cleaning. However, the complete system installation costs associated with vertical walls compared to rooftops are subject to specific circumstances and may still impede widespread adoption in some cases. It is expected that these costs will decrease through the implementation of innovations in this area. Examples of such innovations include PV-integrated glass windows and flexible PV panels. In conclusion, vertical wall-installed PV panels can indeed offer a viable alternative to rooftop installation in buildings with limited rooftop space.

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垂直安装太阳能光伏电池板的效率

摘要由于在城市地区没有足够的屋顶面积来安装光伏设备，这项工作评估了替代性垂直安装光伏设备的性能和经济考虑因素。通过基于模型的定量分析，估算了垂直安装的光伏组件输出功率下降的百分比。结果表明，虽然屋顶空间不足导致垂直安装确实会降低输出，但在许多情况下，这种降低是可以接受的。在 45° 以上的高纬度和中纬度地区，垂直安装的光伏发电量达到最佳倾斜角度安装发电量的 80% 至 90%，在这些纬度地区甚至超过了水平安装的电池板。在纬度介于 25° 和 45° 之间的地区，垂直输出为最佳值的 60% 至 80%，在赤道 20° 以内的地区，垂直输出下降到约 50%。在所有情况下，只需增加几个百分点的安装光伏电池板的成本，就能轻松抵消输出损失。此外，垂直系统收集的灰尘较少，需要清洁的地方也较少。不过，与屋顶相比，垂直墙壁的整套系统安装成本要视具体情况而定，在某些情况下可能仍会阻碍其广泛应用。预计通过在这一领域实施创新，这些成本将会降低。此类创新的例子包括光伏一体化玻璃窗和柔性光伏面板。总之，在屋顶空间有限的建筑中，垂直墙壁安装光伏电池板确实可以作为屋顶安装的可行替代方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Solar Energy Energy-Renewable Energy, Sustainability and the Environment

CiteScore

2.50

自引率

0.00%

发文量

期刊介绍： Applied Solar Energy is an international peer reviewed journal covers various topics of research and development studies on solar energy conversion and use: photovoltaics, thermophotovoltaics, water heaters, passive solar heating systems, drying of agricultural production, water desalination, solar radiation condensers, operation of Big Solar Oven, combined use of solar energy and traditional energy sources, new semiconductors for solar cells and thermophotovoltaic system photocells, engines for autonomous solar stations.