scholarly journals Effect of Dust and High Temperature on Photovoltaics Performance in the New Capital Area

2021 ◽  
Vol 17 ◽  
pp. 360-370
Author(s):  
Engy Elshazly ◽  
Ahmed Α. Abd El-Rehim ◽  
Amr Abdel Kader ◽  
Iman El-Mahallawi
Keyword(s):  
High Temperature ◽  
Negative Impact ◽  
Environmental Parameters ◽  
Electrical Performance ◽  
Solar Photovoltaic ◽  
Solar Panels ◽  
Photovoltaic Panels ◽  
Cost Of Energy ◽  
Dust Accumulation

The trend for integrating solar Photovoltaic Panels as an alternative renewable and sustainable energy source is growing in Egypt, North Africa and the Middle East. However, these efforts are not widely accepted by the society due to their lower efficiencies. The efficiency of the photovoltaic panels is affected by many environmental parameters, which have a negative impact on system efficiency and cost of energy, dust and increased panel temperatures being the most serious. This work presents the results of a case study conducted at The British University in Egypt at El-Sherouk city to study the effect of different parameters such as dust accumulation, water cooling and coating on their performance of both mono- and poly-crystalline panels at El-Sherouk City. The effects of high temperature and dust accumulation on different solar panels placed in natural outdoor conditions at El-Sherouk City were studied and the electrical performance of dusted, cleaned, and cooled PV panels is presented. The variation in the efficiency of mono-crystalline panels installed at different tilt angles, resulting from the accumulation of dust on their surface, was also studied. The results showed that the accumulation of dust on the surface of different types of solar panels can reduce the efficiency by 30%. While the high temperature can reduce the efficiency by up to 10 %. The results showed that the power reduction percentage was 17%, 20%, 25%, 27% and 30% for tilt angles 60°,45°,30°,15° and 0°; respectively. Tilt angles 15° and 30° showed to be optimal for the installation of the PV solar system, as they resulted the highest amount of output power

Solar Sacrifice: How an Arizona Church Lost Money by Going Solar—and Solutions for When Energy Incentives Fail to Serve the Needs of Nonprofits

2018 ◽  
Vol 2 (1) ◽  
pp. 1-8 ◽  
Author(s):  
David Krantz
Keyword(s):  
Energy Consumption ◽  
Oral History ◽  
Policy Design ◽  
Religious Institutions ◽  
Solar Photovoltaic ◽  
The Sun ◽  
Photovoltaic Panels ◽  
Key Stakeholders ◽  
Oral History Interviews

By policy design, consumers are supposed to save money when they invest in solar energy. This paper presents a case study of what happens when a church goes solar and the finances go wrong. Following the installation of solar-photovoltaic panels, the Arizona church—in the Valley of the Sun, among the sunniest places in the country—decreased its energy consumption, but its electric bills went up. Through oral-history interviews of key stakeholders, the author investigates what happened, and what could be done to prevent other religious institutions and nonprofits from experiencing the church’s fate.

Simulations of Solar Power Systems to Provide Electricity to a Model Water Desalination Plant in Floreana Island, Ecuador

2021 ◽  
Author(s):  
Fernando Amoroso ◽  
Rubén Hidalgo-León ◽  
Jaqueline Litardo ◽  
Alejandro Granja ◽  
Jackeline Calderón ◽  
...  
Keyword(s):  
Power Systems ◽  
Water Desalination ◽  
Solar Photovoltaic ◽  
Electrical Load ◽  
Pump System ◽  
Desalination Plant ◽  
Cost Of Energy ◽  
Economic Comparison ◽  
Model Water

Abstract This work shows the techno-economic comparison of the design of two solar photovoltaic systems: 1) on-grid (G-SPVS) and 2) off-grid (SPVS). Both schemes aim to supply electricity to a model water desalination plant located in Floreana Island, Ecuador. The annual load profiles and other operational details of the case study were previously obtained. For this research, a period of 15-years was analyzed. During this time, the maximum power of water pump system remained constant and represented the highest percentage of the electrical load, which changed each year influenced by the drinking water requirements of the population. Results from the HOMER PRO simulations showed that the SPVS produced higher surpluses of electricity. In contrast, the G-SPVS exhibited lower net present cost (NPC) and cost of energy (COE).

scholarly journals Dust accumulation on photovoltaic panels: a case study at the East Bank of the Nile (Beni-Suef, Egypt)

2017 ◽  
Vol 128 ◽  
pp. 24-31 ◽  
Author(s):  
Karim Menoufi ◽  
Hamdy F.M. Farghal ◽  
Ahmed A. Farghali ◽  
Mohamed H. Khedr
Keyword(s):  
Photovoltaic Panels ◽  
Dust Accumulation

scholarly journals Economic and environmental assessment of of solar cooling systems

2019 ◽  
pp. 153-157
Author(s):  
Amlal Ismail ◽  
El Fadar Abdellah
Keyword(s):  
Cost Effective ◽  
Climatic Conditions ◽  
Cooling Systems ◽  
Environmental Aspect ◽  
Photovoltaic Panels ◽  
Solar Cooling ◽  
Cost Of Energy ◽  
Effective Technology ◽  
Adsorption Systems

The objective of this work is to investigate the main solar cooling systems, namely photovoltaic (PV) and thermal sorption (absorption and adsorption) systems,in order to identify the most cost-effective technology according to operating and climatic conditions. A technicoeconomic and environmental comparison has been carried out through a case study. The results revealed that the conventional system powered by photovoltaic panels represents the most appropriate choice in terms of annual cold production and levelized cost of energy (LCOE) when compared with the adsorption and absorption systems, but in terms of environmental aspect the choice of the latter systems is more judicious.

scholarly journals COMPARATIVE STUDY OF DIFFERENT SOLAR PHOTOVOLTAIC ARRAYS CONFIGURATION TO MITIGATE NEGATIVE IMPACT OF PARTIAL SHADING CONDITIONS

2021 ◽  
Vol 16 (2) ◽  
Author(s):  
D. P. Kothari
Keyword(s):  
Negative Impact ◽  
Global Maximum ◽  
Solar Photovoltaic ◽  
Solar Panels ◽  
Maximum Power Point ◽  
Partial Shading ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Photovoltaic Arrays ◽  
Power Point

Growth of photovoltaic systems that require more and more productive alternatives, not only in micro-fabrication techniques but also in methods of energy extraction. In recent years, a large number of Maximum Power Point Tracking algorithms with various complexities over decades the ability to efficiently locate the global maximum under partial shading was followed by evolved. Partial Shading Conditions (PSC) play a major role in determining the energy and power productivity of a solar photovoltaic (SPV) system. Under PSC, the SPV panels receive varying levels of solar irradiance, resulting in a decrease in the power generation of the SPV system, and these losses in SPV panels can be minimized by adjusting the configuration of the array/module panels. The panels can be designed to increase production energy and power quality in several different configurations, such as Series(S), Parallel (P), Series-Parallel (SP), Complete Cross Tied (TCT), Bridge Linked (BL) and Honeycomb (HC). This work is aimed at presenting all the configurations already presented in the literature and referencing and evaluating the findings of PSC on SPV systems. In this paper, there are four 4-4 array configurations of solar photovoltaic panels to be addressed. Parallel series (SP), complete cross-linked (TCT), the bridge linked (BL) and honeycomb are four configurations (HC). To decide on the effect of shadow with 10 shading patterns, four simulated models were carried out. For the above-mentioned configuration, the simulated results indicate a power against voltage (PV) curve of 4 to 4 SPV array under PSC. This thesis will be a reference point for useful and important knowledge for researchers in the field of solar panels.

scholarly journals Effect of dust accumulation on the performance of photovoltaic panels in desert countries: A case study for Madinah, Saudi Arabia

2018 ◽  
Vol 9 (3) ◽  
pp. 1356 ◽  
Author(s):  
Mohamed Benghanem ◽  
Abdullah Almohammedi ◽  
Mohammed Taukeer Khan ◽  
Ahmad Al-Masraqi
Keyword(s):  
Output Power ◽  
Power Losses ◽  
Accumulation Coefficient ◽  
Photovoltaic Panels ◽  
Dust Density ◽  
Qualitative Approaches ◽  
Cleaning System ◽  
Pv Modules ◽  
Dust Accumulation

<p>The present research shows the effect of dust accumulation on the surface of photovoltaic (PV) modules, which cause losses in their output power. We got 28% of losses in output power at Madinah city during 60 days of dust accumulation. Two ways were used to study the effect of dust on the PV modules of type monocrystalline silicon: the quantitative and the qualitative approaches respectively. A model based on dust density is used to determine the losses of output PV power. We propose to add an important parameter noted dust accumulation coefficient (%/mg.cm<sup>-2</sup>), in data sheet of PV modules manufacturer. In addition, an intelligent cleaning system is proposed, using the notion of dust density, to start cleaning when an admissible value of power losses is reached. This process allows minimizing the effect of dust.</p><p> </p>

scholarly journals PROCESSING AND RECYCLING OF PHOTOVOLTAIC SOLAR PANELS

2021 ◽  
pp. 121-126
Author(s):  
Nataliia Samoilenko ◽  
Vadym Katenin ◽  
Antonina Baranova
Keyword(s):  
Power Plants ◽  
Large Scale ◽  
Negative Impact ◽  
Precious Metals ◽  
Waste Recycling ◽  
Waste Processing ◽  
Solar Photovoltaic ◽  
Waste Generation ◽  
Photovoltaic Panels ◽  
Photovoltaic Modules

The steady tendency of increasing the installed capacity of solar power plants, which is accompanied by the gradual accumulation of solar panel waste, is analyzed. The main factors of negative impact on the environment and directly on human health from the production of solar photovoltaic panels and waste of these panels are identified. The scenarios of solar photovoltaic panels waste accumulation are analyzed, the specifics of waste generation and accumulation in the present and in the future are characterized. Taking into account the average service life of solar photovoltaic panels in 25 years, it is determined that the amount of waste will increase significantly in the period of 2030…2035, reaching a peak between 2040 and 2050. The type and composition of photovoltaic panels, which determine the essence of waste processing technology, are characterized. It is defined that today most research on waste recycling of solar photovoltaic panels focuses on the first generation of modules, which is associated with the scale of operation of these panels and sales markets. It was found that at present, the production of solar photovoltaic panels, which consumes primary natural materials, is characterized by nature intensity, and direct waste processing cannot meet the needs of the photovoltaic modules production. The objective necessity of carrying out large-scale extraction of minerals and use of precious metals before the period of highly efficient processing of waste solar photovoltaic panels, which would meet the demands of production, is substantiated. Modern tendencies in technological researches and developments of secondary processing of photovoltaic modules are considered. It is determined that as the volume of solar photovoltaic panels production and waste generation increases, the requirements for ensuring the environmental efficiency of waste processing and disposal technologies should be more stringent. This involves increasing the recycling degree of the waste’s main components, starting from 80…90 % and to the highest possible level. It is determined that at the same time with this tendency, it is expedient to develop technologies for recycling of non-recyclable parts of waste at present.

Influence of Solar Panels in Distributed Photovoltaic Power Generating System above Farm Land on Field and Crops

2015 ◽  
Vol 737 ◽  
pp. 20-23
Author(s):  
Zhi Wu Ge ◽  
Ri Xin Xiao ◽  
Rui Ping Wang
Keyword(s):  
Measurement Instrument ◽  
Hainan Island ◽  
Solar Photovoltaic ◽  
Solar Panels ◽  
Farm Land ◽  
Wind Resistance ◽  
Photovoltaic Panels ◽  
Photovoltaic Power ◽  
Hot Climate ◽  
Generating System

In order to break through the bottleneck of solar photovoltaic power generation, and off-season vegetables problems in Hainan island, we arrange photovoltaic panels above farm land to generate electricity. By novel and ingenious arrangement on panels, we can make farmland temperature distribution more uniform, decrease temperature differences between shading and lighting area significantly, also reduce wind resistance significantly. The influence of solar panel shading on Chinese cabbage was detected by photosynthetic measurement instrument LI-6400. The system was suitable for general farmers to implement in hot climate areas. By using this system, famers can produce cops and electricity at the same time, sell extra electricity, and get double income.

scholarly journals Approaches for Identifying Consumer Preferences for the Design of Technology Products: A Case Study of Residential Solar Panels

2013 ◽  
Vol 135 (6) ◽  
Author(s):  
Heidi Q. Chen ◽  
Tomonori Honda ◽  
Maria C. Yang
Keyword(s):  
Consumer Preferences ◽  
Stated Preference ◽  
Revealed Preference ◽  
Time Span ◽  
Solar Panels ◽  
Photovoltaic Panels ◽  
Machine Learning Methods ◽  
Technology Products ◽  
Technical Specifications

This paper investigates ways to obtain consumer preferences for technology products to help designers identify the key attributes that contribute to a product's market success. A case study of residential photovoltaic panels is performed in the context of the California, USA, market within the 2007–2011 time span. First, interviews are conducted with solar panel installers to gain a better understanding of the solar industry. Second, a revealed preference method is implemented using actual market data and technical specifications to extract preferences. The approach is explored with three machine learning methods: Artificial neural networks (ANN), Random Forest decision trees, and Gradient Boosted regression. Finally, a stated preference self-explicated survey is conducted, and the results using the two methods compared. Three common critical attributes are identified from a pool of 34 technical attributes: power warranty, panel efficiency, and time on market. From the survey, additional nontechnical attributes are identified: panel manufacturer's reputation, name recognition, and aesthetics. The work shows that a combination of revealed and stated preference methods may be valuable for identifying both technical and nontechnical attributes to guide design priorities.

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