Influences of Meteorological Elements on Outdoor Performance Ratio of Various-Type Photovoltaic Modules in Central Part of Japan

2021 ◽  
Author(s):  
Yuuki Tanigaki ◽  
Jakapan Chantana ◽  
Kota Takeguchi ◽  
Yu Kawano ◽  
Takahito Nishimura ◽  
...  
2019 ◽  
Vol 52 (9-10) ◽  
pp. 1308-1318
Author(s):  
Sudipta Basu Pal ◽  
Abhijit Das ◽  
Konika Das (Bhattacharya) ◽  
Dipankar Mukherjee

The photovoltaic module testing apparatus being used presently for photovoltaic measurements acts principally on the method of photovoltaic module loading with resistive, capacitive, and electronic elements. In this work, a new method is described using a supercapacitor as the load to the photovoltaic module. This technique of characterization has proved to generate reliable V–I characteristics as validated by statistical and mathematical analyses in this article. Heat dissipation affecting the functioning of the photovoltaic modules is a common occurrence with resistive and capacitive loading techniques. It is reduced significantly in this method using supercapacitors, and curve tracing time is extremely modest and easily controllable. In effect, a low-cost, portable, and reliable I–V plotter is developed, which is operational from an embedded systems platform integrated with smart sensors. This I–V tracer has been used for the performance assessment of solar modules ranging from 10 to 100 Wp under varying climatic conditions in the eastern region of India. This test kit so developed in the photovoltaic engineering laboratory at Indian Institute of Engineering Science and Technology, Shibpur, is estimated to be useful for practicing engineers and photovoltaic scientists and in particular for photovoltaic module manufacturers. The performance parameters such as fill factor and performance ratio of photovoltaic modules measured by the device have been found to have almost identical values as the measurements from a reference commercial testing apparatus. The data pertaining to peak wattage as measured by the designed plotter have been found to be closely converging with an industry-friendly YOKOGAWA Power Meter (WT 330). Such peak values of power as measured and claimed by the datasheets will help reduce the uncertainties in measurement, leading to increased confidence of photovoltaic module manufacturers and investors. With this backdrop, the necessary work for scaling up of the low-cost I–V plotter has been taken up for assessing the performance of higher wattage photovoltaic modules.


2018 ◽  
Vol 65 (12) ◽  
pp. 5419-5427 ◽  
Author(s):  
Mahmoud Dhimish ◽  
Peter Mather ◽  
Violeta Holmes

2016 ◽  
Vol 20 (1) ◽  
pp. 165-173 ◽  
Author(s):  
Hafiz Ali ◽  
Mubashar Mahmood ◽  
Muhammad Bashir ◽  
Muzaffar Ali ◽  
Aysha Siddiqui

An experimental study has been carried out to measure the performance of commercially available photovoltaic modules during summer months in the climate of Taxila, near the capital of Pakistan. The modules used in the study are monocrystalline silicon (c-Si), polycrystalline silicon (p-Si) and single junction amorphous silicon (a-Si). The analysis has been focused on the measurement of module efficiency, performance ratio and temperature of each module at actual operating conditions using outdoor monitoring facility. The measured results are compared with the already published data of peak winter month at the same site. Overall, the monocrystalline module showed high average module efficiency while amorphous silicon module was better in term of average performance ratio. Furthermore, the module efficiency and performance ratio has shown decreasing trend with increase of module temperature. It was found that modules have much higher temperature in summer months (about 20?C higher) and showed low efficiency and performance ratio than peak winter month. The average ambient temperature varied from 18.1?C to 38.6?C from winter to summer.


2017 ◽  
Vol 18 (1) ◽  
pp. 30-34
Author(s):  
Hae-Lim Cha ◽  
Jae-Woo Ko ◽  
Jong-Rok Lim ◽  
David-Kwangsoon Kim ◽  
Hyung-Keun Ahn

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Muhammad Anser Bashir ◽  
Hafiz Muhammad Ali ◽  
Shahid Khalil ◽  
Muzaffar Ali ◽  
Aysha Maryam Siddiqui

This paper presents the comparative performance evaluation of three commercially available photovoltaic modules (monocrystalline, polycrystalline, and single junction amorphous silicon) in Taxila, Pakistan. The experimentation was carried out at outdoor conditions for winter months. Power output, module efficiency, and performance ratio were calculated for each module and the effect of module temperature and solar irradiance on these parameters was investigated. Module parameters showed strong dependence on the solar irradiance and module temperature. Monocrystalline and polycrystalline modules showed better performance in high irradiance condition whereas it decreased suddenly with decrease in irradiance. Amorphous solar module also showed good performance in low irradiance due to its better light absorbing characteristics and thus showed higher average performance ratio. Monocrystalline photovoltaic module showed higher monthly average module efficiency and was found to be more efficient at this site. Module efficiency and performance ratio showed a decreasing trend with increase of irradiance and photovoltaic module back surface temperature.


2016 ◽  
Vol 20 (1) ◽  
pp. 155-163
Author(s):  
Busiso Mtunzi ◽  
Edson Meyer ◽  
Simon Michael

Electrical energy of photovoltaic modules drops by 0.5% for each degree increase in temperature. Direct water cooling of photovoltaic modules was found to give improved electrical and thermal yield. A prototype was put in place to analyse the field data for a period of a year. The results showed an initial high performance ratio and electrical power output. The monthly energy saving efficiency of the directly water cooled module was found to be approximately 61%. The solar utilisation of the naturally cooled photovoltaic module was found to be 8.79% and for the directly water cooled module its solar utilisation was 47.93%. Implementation of such systems on households may reduce the load from the utility company, bring about huge savings on electricity bills and help in reducing carbon emissions. <br><br><font color="red"><b> This article has been retracted. Link to the retraction <u><a href="http://dx.doi.org/10.2298/TSCI160407082E">10.2298/TSCI160407082E</a><u></b></font>


2019 ◽  
Vol 22 (1) ◽  
pp. 5-11 ◽  
Author(s):  
Atsu Divine Kafui ◽  
István Seres ◽  
István Farkas

Abstract Solar photovoltaic power generation capacity is rising continuously as a result of various regional, sub-regional renewable energy policies and the impact of technology development, as well as the increasing environmental concerns. Characteristics of photovoltaic modules are provided by manufacturers after they have been tested indoors under standard test conditions. These parameters may vary under exterior conditions. It is thus imperative to establish the quantity of the energy produced by photovoltaic modules under real operation conditions. This study sought to assess the performance of different kinds of photovoltaic module technologies in the city of Gödöllő, Hungary, and ascertain the behaviour of the modules under real outdoor conditions. Modules include amorphous silicon (a-Si), monocrystalline silicon (mc-Si), polycrystalline silicon (pc-Si), transparent monocrystalline silicon module (mc-Si). Measurement of the module characteristics was performed and various meteorological parameters were obtained. Performance parameters such as performance ratio and efficiency are given and analysed. Module temperature was estimated and evaluated in comparison with experimental values. Energy conversion rates of the modules were determined as 9.4%, 4.4%, 10.3%, 8.2% and 10.4% for mc-Si module transparent glass (165 Wp), a-Si module (glass 40Wp), pc-Si module (105 Wp), pc-Si module (60 Wp) and mc-Si (PV-T 180 Wp), respectively. Under the given outdoor conditions, the highest average performance ratio of 85.2% was obtained for the mc-Si module (transparent glass, 165 Wp), exhibiting the best performance, while pc–Si module (60 Wp) showed the least average performance ratio of 71.8%.


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