Residential rooftop PV power generation to support cooling loads and national targets in Saudi Arabia
Residential rooftop PV power generation to support cooling loads and national targets in Saudi Arabia
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住宅屋顶光伏发电支持沙特阿拉伯的冷负荷和国家目标
DOI：
10.1088/1742-6596/2042/1/012097
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Alam M
中科院分区：
文献类型：
--
作者：
Alam M
沙特阿拉伯（SA）的人均用电量很高，主要来自化石燃料。住宅用电量约占总用电量的50%，其中约70%用于空调负荷。本研究探讨屋顶光伏（PV）系统的作用，以取代冷却负荷，从而减少住宅用电需求。在吉达的一座别墅中监测了每日和年度电力需求，并对一系列光伏系统进行了建模，以确定它们支持交流和其他家庭负荷的能力。将这些系统的季节性性能数据与监测的负荷变化进行比较，以了解变异性和产量。别墅的监测电力需求范围为66-167千瓦时/天，用于估计所需的光伏系统容量。结果表明，2-10 kWp范围内的光伏系统存在显著不足，无法支持全部需求。然而，一个15kWp的系统被发现满足白天的总负荷。这些结果表明，适当规模的屋顶光伏系统可以减少峰值空调负荷。本文讨论了南非在此类应用中利用建筑集成光伏的重要性，并强调了通过全国政策框架进行大规模推广的必要性。
Saudi Arabia (SA) has a high per capita electricity consumption, predominantly supplied from fossil fuels. The residential sector accounts for about 50% of total electricity consumption with approximately 70% of which is used for air-conditioning (AC) loads. This research investigates the role of rooftop photovoltaic (PV) systems to displace cooling loads, hence reducing residential electricity demand. Daily and annual electrical demands were monitored in a villa in Jeddah, and a range of PV systems were modelled to determine their ability to support AC and other household loads. Seasonal performance data of such systems were compared to monitored load variations to understand variability and yields. The monitored electrical demand of the villa was in the range 66-167 kWh/day which was used to estimate the required PV systems' capacities. The results indicate that PV systems in the range 2-10 kWp present significant shortfall to support the full demand. However, a 15kWp system was found to meet the daytime total loads. These results indicate that appropriately sized rooftop PV-systems can shave-off peak air-conditioning loads. The paper discusses the importance of utilising building integrated PV in such applications in SA, and highlights the need for dissemination at scale through country wide policy framework.
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