Optimum orientation and tilt angle for estimating performance of photovoltaic modules in western region of Saudi Arabia (original) (raw)
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International Journal of Energy Research
This article focuses on the optimization of tilt angle for solar panels in the Gulf Cooperation Council (GCC) countries. The tilt angle is a crucial factor that affects the amount of solar radiation received by the solar panel. The study uses a mathematical model to calculate the optimal tilt angle based on the latitude and longitude of the location and compares the results with the PVWatts calculator. The importance of selecting the optimal tilt angle for maximizing solar energy production is emphasized. The study finds that the mathematical model and PVWatts calculator are in good agreement, except for the negative tilt angles calculated by the model. The article also provides monthly, seasonally, and yearly irradiance values for the GCC countries calculated using the PVWatts calculator. It suggests that changing the tilt angle 12 times during the year can enhance the power output by 10.9%. The results show that the monthly automated angle has a maximum in December and a minimum i...
IEEE Access, 2021
Estimation of solar radiation distribution is crucial for the performance, design, and economic evaluations of solar panels and/or collector systems operating under various climatic conditions, tilt angles, and geographic locations. A comprehensive study involving the combined effect of tilt angle as well as ambient temperature for maximizing the PV array power output was performed. At first, we present a comparison between different isotropic and anisotropic models showing that the anisotropic model gains 5% more energy than the isotropic one. We report monthly and yearly optimum tilts derived from the anisotropic model. Utilizing the optimum tilt derived from the selected anisotropic model, a case study of a mono-crystalline silicon PV array with 2.76 kWp of rated power is performed by considering the ambient temperature to evaluate the PV performance in five cities of Kingdom of Saudi Arabia. The results show that the estimated yearly optimum tilt angle is close to the latitude of the studied cities. For the city of Dhahran, a gain of 4.2% power generation is achieved at ambient temperature through monthly adjustment of the PV module instead of yearly adjustment. The estimated yearly tilt angles are as follow: 27.3o for Dhahran, 26.0o for Riyadh, 22.7o for Jeddah, 32.7o for Arar, and 20.1o for Abha. Although Riyadh and Arar receive the same annual average GHI of 6.0 kW/m2, the yearly average PV power output is ~7.1% higher for Arar (1.50kW) compared with Riyadh (1.40 kW). This is mainly attributed to the fact that Riyadh has a higher annual average ambient temperature of 29 oC compared with 23 oC for Arar. Thus, in addition to panel orientation, the ambient temperature was found to have a significant impact on the performance of the PV system, and should be taken into consideration when designing the system
Optimizing the Solar PV Tilt Angle to Maximize the Power Output: A Case Study for Saudi Arabia
IEEE Access, 2021
Estimation of solar radiation distribution is crucial for the performance, design, and economic evaluations of solar panels and/or collector systems operating under various climatic conditions, tilt angles, and geographic locations. A comprehensive study involving the combined effect of tilt angle as well as ambient temperature for maximizing the PV array power output was performed. At first, we present a comparison between different isotropic and anisotropic models showing that the anisotropic model gains 5% more energy than the isotropic one. We report monthly and yearly optimum tilts derived from the anisotropic model. Utilizing the optimum tilt derived from the selected anisotropic model, a case study of a mono-crystalline silicon PV array with 2.76 kWp of the rated power is carried out to evaluate the PV performance in five cities of the Kingdom of Saudi Arabia. The results show that the estimated yearly optimum tilt angle is close to the latitude of the studied cities. For the...
Optimization of photovoltaic modules tilt angle for Oman
2013 IEEE 7th International Power Engineering and Optimization Conference (PEOCO), 2013
This paper presents a method for optimization of photovoltaic modules tilt angle for Sohar, Oman. Numerical method for optimization of the PV module tilt angle, is implemented using MATLAB and hourly meteorological data and load demand. The results show that for Sohar zone the tilt angle of a PV array must be adjusted twice a year where the PV array must be slanted at 49 degrees in the period of 21/09-21/03 (n=255-81), while it must be horizontal (tilt angle is zero) in the period of 21/03-21/09 (n=81-255). This adjustment practice gains the energy collected by a PV array by 24.6%.This paper contains important information for those who are interested in photovoltaic system investment in Oman.
Optimization of PV Modules through Tilt Angle in Different Cities Of Punjab, Pakistan
2020 IEEE 23rd International Multitopic Conference (INMIC), 2020
This paper evaluates the optimum tilt angle and available direct solar radiation on the inclined surface of the PV Cell at Punjab, Pakistan. This mathematical model provides the maximization of Solar Radiation impinging on the Solar collectors. Instead of Solar Collector placed at latitude angle with the help of parameters like Slope, orientation, azimuth surface angle and the hour angle of the PV Cell. The variation in the Solar Radiation on the PV Cell from Latitude to Tilt angle is represented graphically. Considered cities of Punjab are Lahore, Mangla, Sialkot, Gujranwala and Multan. The study reveals that as latitude angle varies from 33 0 to 28 0 intensity increases approximately from 0.3KWh/m 2 to 0.6KWh/m 2 which will result in increased output power. Seasonal optimum angle has also been listed. Optimization of title angle has the highest effect on solar irradiance in winter season when day is shorter hence more light is required to fulfil our requirement.
Optimization of Photovoltaic Modules Title Angle for Oman
This paper presents a method for optimization of photovoltaic modules tilt angle for Sohar, Oman. Numerical method for optimization of the PV module tilt angle, is implemented using MATLAB and hourly meteorological data and load demand. The results show that for Sohar zone the tilt angle of a PV array must be adjusted twice a year where the PV array must be slanted at 49 degrees in the period of 21/09-21/03 (n=255-81), while it must be horizontal (tilt angle is zero) in the period of 21/03-21/09 (n=81-255). This adjustment practice gains the energy collected by a PV array by 24.6%.This paper contains important information for those who are interested in photovoltaic system investment in Oman.
International Journal of Energetica (IJECA), 2023
The tendency to exploit solar energy in the electricity production in Algeria is a priority and a major goal of the Algerian government, and for this reason it seeks to provide all the necessary capabilities to achieve this lofty goal. Photovoltaic electricity is one of the effective technologies for the solar electricity production, but before installing any photovoltaic panel, it is important to determine its optimal tilt angle, and based on this, this study allowed to show the optimal tilt angle of the photovoltaic panels in the Algerian region of El Oued in the spring season, and accordingly, two days (March 21 st , 2023, and April 21 st , 2023) were chosen to conduct this experimental study. Based on the obtained results, the optimal PV tilt angle for the month of March is 33° and 28° for the month of April. In addition, the greater the amount of solar radiation, the higher the efficiency and productivity of the PV panels, as the highest values for them (6.31 % and 62.17 W, respectively) were recorded on April 21st, 2023. The results of this study will contribute to the correct installation of photovoltaic panels in the Algerian region of El-Oued, especially if the photovoltaic panels are equipped with dual-axis solar tracking systems.
Optimization of tilt angle for solar panel: Case study for Madinah, Saudi Arabia
This article analyzes the optimal choice of the tilt angle for the solar panel in order to collect the maximum solar irradiation. In this paper, the collector surface is assumed to be facing toward equator. The study is based upon the measured values of daily global and diffuse solar radiation on a horizontal surface. It is shown that the optimal angle of tilt (b opt ) for each month, allows us to collected the maximum solar energy for Madinah site. Annual optimum tilt angle is found to be approximately equal to latitude of the location. It is found that the loss in the amount of collected energy when using the yearly average fixed angle is around 8% compared with the monthly optimum tilt b opt .
Journal of Physics: Conference Series, 2020
The study of photovoltaic energy and load predictions have become essential with the increase of energy demand. The objective of this paper is to present an analytical study on the performance of photovoltaic system with various azimuth angles and solar array tilt positions. The output power of a solar module is mainly dependent on its tilt position, solar irradiation, type of solar cell, and the technical properties of the module. The data used in this work consist of two different locations. The outcome of this work shows that the energy production influenced heavily on the weather conditions, location, azimuth angles and tilt positions. Within this work, parameters such as planes-of-array irradiance, net to inverter output power, net to grid output power and performance ratio have been studied. The developed analytical study is anticipated to provide a better understanding on the energy production and load usage in accordance with suitable tilt angle of solar array in a specific ...
Performance evaluation of photovoltaic modules at different tilt angles and orientations
Energy Conversion and Management, 2004
In the present study, the performance of mono-crystalline silicon type PV modules has been investigated theoretically at different tilt angles and orientations. The annual performance was predicted using a Fortran computer subprogram constructed based on the analysis and connected to the TRNSYS simulation program. The subprogram was experimentally verified at different meteorological conditions and design parameters in a previous study by the authors based on the meteorological conditions of Cairo (Egypt). It is found that the optimum value of yearly maximum output energy (i.e. the yearly output energy at the maximum power point) can be obtained from PV modules oriented facing south with a tilt angle in the range of 20–30°. Besides, the yearly maximum output energy of the PV modules mounted at different tilt angles and orientations is obtained as a fraction of its optimum value at the optimum tilt angle and orientation.