Minimizing the Utilized Area of PV Systems by Generating the Optimal Inter-Row Spacing Factor

Sustainability

Ursula Eicker¹  Claude El-Bayeh¹  Khaled Alzaareer²  Ayman Al-Quraan³  Mohammed Al-Mahmodi⁴ 

[1] Canada Excellent Research Chair Team, Concordia University, Montreal, QC H3H 2L9, Canada;Department of Electrical Engineering, Faculty of engineering, Philadelphia University, Amman 19392, Jordan;Electrical Power Engineering Department, Hijjawi Faculty for Engineering Technology, Yarmouk University, Irbid 21163, Jordan;Mechanical Engineering Department, Renewable Energy, The University of Jordan, Amman 11942, Jordan;

关键词: photovoltaic system;    inter-row spacing;    tilt angle;    effective area;    sun path;    sun angles;   

DOI  :  10.3390/su14106077

来源: DOAJ

【 摘 要 】

In mounted photovoltaic (PV) facilities, energy output losses due to inter-row shading are unavoidable. In order to limit the shadow cast by one module row on another, sufficient inter-row space must be planned. However, it is not uncommon to see PV plants with such close row spacing that energy losses occur owing to row-to-row shading effects. Low module prices and high ground costs lead to such configurations, so the maximum energy output per available surface area is prioritized over optimum energy production per peak power. For any applications where the plant power output needs to be calculated, an exact analysis of the influence of inter-row shading on power generation is required. In this paper, an effective methodology is proposed and discussed in detail, ultimately, to enable PV system designers to identify the optimal inter-row spacing between arrays by generating a multiplier factor. The spacing multiplier factor is mathematically formulated and is generated to be a general formula for any geographical location including flat and non-flat terrains. The developed model is implemented using two case studies with two different terrains, to provide a wider context. The first one is in the Kingdome of Saudi Arabia (KSA) provinces, giving a flat terrain case study; the inter-row spacing multiplier factor is estimated for the direct use of a systems designer. The second one is the water pump for agricultural watering using renewable energy sources, giving a non-flat terrain case study in Dhamar, Al-Hada, Yemen. In this case study, the optimal inter-row spacing factor is estimated for limited-area applications. Therefore, the effective area using the proposed formula is minimized so that the shading of PV arrays on each other is avoided, with a simple design using the spacing factor methodology.

【 授权许可】

Unknown