scholarly journals Experiment-based Study on the Impact of Soiling on PV System’s Performance

2016 ◽  
Vol 6 (2) ◽  
pp. 810
Author(s):  
Wan Juzaili Jamil ◽  
Hasimah Abdul Rahman ◽  
Kyairul Azmi Baharin
Keyword(s):  
Tropical Climate ◽  
System Efficiency ◽  
Worst Case ◽  
Solar Photovoltaics ◽  
Pv Module ◽  
Pv Modules ◽  
Dust Loading ◽  
Module Performance ◽  
The Impact ◽  
Full Day

Soiling refers to the accumulation of dust on PV modules which plays a small but significant role in degrading solar photovoltaics system efficiency. Its effect cannot be generalized because the severity is location and environment dependent. Currently, there are limited studies available on the soiling effect in the hot and humid Malaysian tropical climate. This paper presents an experimental-based approach to investigate the effect of soiling on PV module performance in a tropical climate. The experiment involved a full day exposure of a polycrystalline PV module in the outdoors with accelerated artificial dust loading and an indoor experiment for testing variable dust dimensions. The findings show that for the worst case, the module’s output can be reduced by as much as 20%.

Experiment-based Study on the Impact of Soiling on PV System’s Performance

2016 ◽  
Vol 6 (2) ◽  
pp. 810
Author(s):  
Wan Juzaili Jamil ◽  
Hasimah Abdul Rahman ◽  
Kyairul Azmi Baharin
Keyword(s):  
Tropical Climate ◽  
System Efficiency ◽  
Worst Case ◽  
Solar Photovoltaics ◽  
Pv Module ◽  
Pv Modules ◽  
Dust Loading ◽  
Module Performance ◽  
The Impact ◽  
Full Day

Soiling refers to the accumulation of dust on PV modules which plays a small but significant role in degrading solar photovoltaics system efficiency. Its effect cannot be generalized because the severity is location and environment dependent. Currently, there are limited studies available on the soiling effect in the hot and humid Malaysian tropical climate. This paper presents an experimental-based approach to investigate the effect of soiling on PV module performance in a tropical climate. The experiment involved a full day exposure of a polycrystalline PV module in the outdoors with accelerated artificial dust loading and an indoor experiment for testing variable dust dimensions. The findings show that for the worst case, the module’s output can be reduced by as much as 20%.

scholarly journals Modeling of Photovoltaic Module Using the MATLAB

2019 ◽  
Vol 9 ◽  
pp. 59-69
Author(s):  
Alok Dhaundiyal ◽  
Divine Atsu
Keyword(s):  
Standard Test ◽  
Electrical Performance ◽  
Photovoltaic Module ◽  
Solar Pv ◽  
Pv Module ◽  
Proposed Model ◽  
Current Voltage ◽  
Pv Modules ◽  
The Impact ◽  
The Mathematical Model

This paper presents the modeling and simulation of the characteristics and electrical performance of photovoltaic (PV) solar modules. Genetic coding is applied to obtain the optimized values of parameters within the constraint limit using the software MATLAB. A single diode model is proposed, considering the series and shunt resistances, to study the impact of solar irradiance and temperature on the power-voltage (P-V) and current-voltage (I-V) characteristics and predict the output of solar PV modules. The validation of the model under the standard test conditions (STC) and different values of temperature and insolation is performed, as well as an evaluation using experimentally obtained data from outdoor operating PV modules. The obtained results are also subjected to comply with the manufacturer’s data to ensure that the proposed model does not violate the prescribed tolerance range. The range of variation in current and voltage lies in the domain of 8.21 – 8.5 A and 22 – 23 V, respectively; while the predicted solutions for current and voltage vary from 8.28 – 8.68 A and 23.79 – 24.44 V, respectively. The measured experimental power of the PV module estimated to be 148 – 152 W is predicted from the mathematical model and the obtained values of simulated solution are in the domain of 149 – 157 W. The proposed scheme was found to be very effective at determining the influence of input factors on the modules, which is difficult to determine through experimental means.

scholarly journals Sustainable End of Life Management of Crystalline Silicon and Thin Film Solar Photovoltaic Waste: The Impact of Transportation

2020 ◽  
Vol 10 (16) ◽  
pp. 5465 ◽  
Author(s):  
Ilke Celik ◽  
Marina Lunardi ◽  
Austen Frederickson ◽  
Richard Corkish
Keyword(s):  
Thin Film ◽  
United States ◽  
End Of Life ◽  
Crystalline Silicon ◽  
The United States ◽  
Hotspot Analysis ◽  
Material Recovery ◽  
Pv Module ◽  
Pv Modules ◽  
The Impact

This work provides economic and environmental analyses of transportation-related impacts of different photovoltaic (PV) module technologies at their end-of-life (EoL) phase. Our results show that crystalline silicon (c-Si) modules are the most economical PV technology (United States Dollars (USD) 2.3 per 1 m2 PV module (or 0.87 ¢/W) for transporting in the United States for 1000 km). Furthermore, we found that the financial costs of truck transportation for PV modules for 2000 km are only slightly more than for 1000 km. CO2-eq emissions associated with transport are a significant share of the EoL impacts, and those for copper indium gallium selenide (CIGS) PV modules are always higher than for c-Si and CdTe PV. Transportation associated CO2-eq emissions contribute 47%, 28%, and 40% of overall EoL impacts of c-Si, CdTe, and CIGS PV wastes, respectively. Overall, gasoline-fueled trucks have 65–95% more environmental impacts compared to alternative transportation options of the diesel and electric trains and ships. Finally, a hotspot analysis on the entire life cycle CO2-eq emissions of different PV technologies showed that the EoL phase-related emissions are more significant for thin-film PV modules compared to crystalline silicon PV technologies and, so, more environmentally friendly material recovery methods should be developed for thin film PV.

scholarly journals Reliability Study of c-Si PV Module Mounted on a Concrete Slab by Thermal Cycling Using Electroluminescence Scanning: Application in Future Solar Roadways

Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 470 ◽  
Author(s):  
Firoz Khan ◽  
Béchir Dridi Rezgui ◽  
Jae Hyun Kim
Keyword(s):  
Thermal Cycling ◽  
Concrete Slab ◽  
Stress Test ◽  
Real Field ◽  
Solar Photovoltaic ◽  
The Real ◽  
Pv Module ◽  
Pv Modules ◽  
Degradation Behaviors ◽  
The Impact

Several tests were conducted to ratify the reliability and durability of the solar photovoltaic (PV) devices before deployment in the real field (non-ideal conditions). In the real field, the temperature of the PV modules was varied during the day and night. Nowadays, people have been bearing in mind the deployment of PV modules on concrete roads to make use of the space accessible on roads. In this regard, a comparative study on the failure and degradation behaviors of crystalline Si PV modules with and without a concrete slab was executed via a thermal cycling stress test. The impact of the concrete slab on the performance degradation of PV modules was evaluated. Electroluminescence (EL) results showed that the defect due to thermal cycling (TC) stress was reduced in the PV module with a concrete slab. The power loss due to the thermal cycling was reduced by approximately 1% using a concrete slab for 200 cycles. The Rsh value was reduced to approximately 91% and 71% after thermal cycling of 200 cycles for reference PV modules, respectively. The value of I0 was increased to approximately 3.1 and 2.9 times the initial value for the PV modules without and with concrete, respectively.

Climate change impact on photovoltaic potential in Poland

2021 ◽  
Author(s):  
Malgorzata Zdunek
Keyword(s):  
Climate Change ◽  
Fossil Fuels ◽  
Climate Models ◽  
Energy System ◽  
Climatic Conditions ◽  
Suburban Areas ◽  
Pv Module ◽  
Change Impact ◽  
Module Performance ◽  
The Impact

<p>Due to global warming and the worldwide depletion of fossil fuel resources, there is a growing need to transform the energy system toward greater use of renewable sources. In Poland, poor air quality constitutes an additional argument for the necessity of such transition. High levels of pollutants concentrations in many locations, especially in urban and suburban areas are caused by emissions from individual heating systems running on fossil fuels.</p><p><span> Data from recent years show </span><span>that renewable generation forms the largest share of the total generation mix in Europe</span><span>. </span><span>Regarding new installation, solar and wind energy dominate renewable </span><span>capacity expansion, jointly accounting for example in 2019 for 90% of all net renewable additions.</span><span> However, along with the increase in the penetration of these energy sources also increases the sensitivity of the power system to weather and climatic conditions.</span></p><p>The study presents the impact of climate change up to the year 2100 on the photovoltaic power generation potential (Pvpot) in Poland. For determination of Pvpot index a set of high-resolution climate models projections, made available within the EURO-CORDEX initiative was used. Maps showing spatial distribution of absolute values of Pvpot in future climate (30-year average for 2071-2100) and relative changes with respect to current climate (30-year average for 2006-2035) are presented, separately for RCP4.5 and RCP8.5 scenario. The influence of meteorological conditions (temperature, wind and solar radiation) on PV module performance is taken into account by applying two different formula (Ciulla et. al, 2014 and Davy and Troccoli, 2012). Furthermore, two options for module orientation are considered: horizontal and inclined at an optimal angle.</p>

The Impact Mitigation of Partial Shading on PV Array Power Generation

2015 ◽  
Vol 781 ◽  
pp. 267-271
Author(s):  
Santisouk Phiouthonekham ◽  
Anucha Lekkruasuwan ◽  
Surachai Chaitusaney
Keyword(s):  
Power Generation ◽  
Solar Irradiation ◽  
Testing System ◽  
Partial Shading ◽  
Pv Array ◽  
Pv Module ◽  
Time Period ◽  
Current Voltage ◽  
Pv Modules ◽  
The Impact

The impact of partial shading on photovoltaic (PV) array is discussed in this paper. The partial shading on PV array can significantly decrease the power generation of PV array. This study examines the modeling of PV module which relates with solar irradiation, temperature, and shading pattern. There are different shading patterns on PV array, such as one-string shading, two-strings shading, and much more. The characteristics of current-voltage (I-V) and voltage-power (V-P) curves for each individual the PV array can be different dependent on the multiple MPPs, maximum power points (MPPs). These multiple MPPs are basically lower than the MPP in case of no shading. Therefore, the total generated energy in an interested time period is usually reduced. As a result, this paper proposes the appropriate arrangement of PV modules in a PV array in order to mitigate the impact of partial shading. Finally, the proposed arrangement of PV modules is tested in a testing system. All the obtained results confirms that the proposed arrangement of PV modules is effective and can be applied in practice.

scholarly journals Experimental Investigation of Photovoltaic Partial Shading Losses under Different Operation Conditions

2020 ◽  
Vol 23 (1) ◽  
pp. 35-44
Author(s):  
Ali H. Numan ◽  
Zahraa Salman Dawood ◽  
Hashim A. Hussein
Keyword(s):  
Photovoltaic System ◽  
Transparent Material ◽  
Radiation Level ◽  
Partial Shading ◽  
Operation Conditions ◽  
Pv Panel ◽  
Pv Module ◽  
Module Performance ◽  
The Impact ◽  
Vertical Cell

The partial shading conditions have a significant effect on the performance of Photovoltaic system and the ability of delivering energy. In this study, the impact of different partial shading on the mono crystalline (88W) PV module performance was investigated in this study. Horizontal string, vertical string, and single cell shading at different percentage of shading area have been studied. It is found that the horizontal string shading is more severe on the efficiency of the PV panel. In contrast, the efficiency of PV panel with cellular and vertical cell shading was less during the tests. The experimental results showed that the power losses were 99.8%, 66% and 56.8 % for horizontal, cellular and vertical shading respectively via applied non transparent material as shading element by 100% of shading area at 500 W/m2. Moreover, transparent material used to shade whole module horizontally, different shading area and different radiation level applied to find electrical characteristics of the module under these conditions. The results show that at 800W/m2 of irradiation levels and no shading condition the power was 68.6W, by increase shading area by 20% in each step, the power reducing by 44.94, 47.58, 49.42, 50.57 and 52.4% in compared with their initial value at no shading condition.

scholarly journals Effect of Wind Load on Performance of Photovoltaic (PV) Modules Available in Pakistan

2021 ◽  
Vol 40 (4) ◽  
pp. 860-866
Author(s):  
Rizwan Mehmood Gul ◽  
Fahad Ullah Zafar ◽  
Muhammad Ali Kamran ◽  
Muhammad Noman
Keyword(s):  
Power Output ◽  
Mechanical Load ◽  
Wind Load ◽  
International Standards ◽  
Load Test ◽  
Mechanical Integrity ◽  
Pv Module ◽  
Pv Modules ◽  
Iec 61215 ◽  
The Impact

Mechanical integrity of a Photovoltaic (PV) module plays a major role in its performance and electrical output. Mechanical loads which include loads produced by wind, snow, rain, and hail tend to degrade the performance of PV module by generating stresses and enhancing micro-cracks and defects. This research aims to investigate the impact of wind loads on the performance of PV modules, particularly the degradation in its power output. A load of 2400 Pa was applied as per international standards (ASTM E1830-15 and IEC-61215). A total of four PV module samples, of the same specifications with 60 W rated power, were initially subjected to solar flash testing and Electroluminescence (EL) imaging. This was followed by three cycles of mechanical load test. After the mechanical load tests, the modules were again subjected to solar flash testing and EL imaging and the results were compared. It was noted that static wind load degrades the mechanical integrity of photovoltaic modules in two ways; by aiding the propagation of existing cracks and initiating new cracks. This loss of mechanical integrity degraded the power output of PV module. Maximum drop of 2% in the power output and 0.27% in the efficiency was observed. In addition, the average increase of 3.37% in the series resistance was observed indicating decrease in performance.

scholarly journals Comparative study on different types of photovoltaic modules under outdoor operating conditions in Minna, Nigeria

2018 ◽  
Vol 6 (1) ◽  
pp. 35
Author(s):  
Joel A. Ezenwora ◽  
David O. Oyedum ◽  
Paulinus E. Ugwuoke
Keyword(s):  
Measured Data ◽  
Operating Conditions ◽  
Performance Variables ◽  
Photovoltaic Modules ◽  
Pv Module ◽  
Pv Modules ◽  
Different Types ◽  
Metal Support ◽  
One Year ◽  
Module Performance

There is need to always obtain the realistic outdoor performance variables of Photovoltaic (PV) module in a location for efficient PV power system sizing and design. Outdoor performance evaluation was carried out on three types of commercially available silicon PV modules rated 10 W each, using CR1000 software-based Data Acquisition System (DAS). The PV modules under test and meteorological sensors were installed on a metal support structure at the same test plane.The data monitoring was from 08.00 to 18.00 hours each day continuously for a period of one year, from December 2014 to November 2015. Maximum values of module efficiencies of 5.86% and 10.91% for the monocrystalline and polycrystalline modules were respectively recorded at irradiance of 375 W/m2, while the amorphous efficiency peaked at 3.61 % with irradiance of 536.5 W/m2. At 1000 W/m2 the efficiencies reduced to 3.30 %, 6.20 % and 2.25 % as against manufacturer’s specifications of 46 %, 48 % and 33 % for the monocrystalline, polycrystalline and amorphous modules respectively. The maximum power output achieved for the modules at irradiance of 1000 W/m2 were 0.711 W, 1.323 W and 0.652 W for the monocrystalline, polycrystalline and amorphous PV modules, respectively. Accordingly, Module Performance Ratios for the PV modules investigated were 0.07, 0.13 and 0.07, respectively. The rate of variation of module response variables with irradiance and temperature was determined using a linear statistical model given as Y= a + bHg+ c Tmod. The approach performed creditably when compared with measured data.

Sign in / Sign up

Export Citation Format

Share Document