Energy efficiency of photovoltaic solar plant in real climate conditions in Banja Luka

Milosavljević, Dragana D.; Mirjanić, Dragoljub; Pavlović, Tomislav; Divnić, Darko; Pirsl, Danica

doi:10.2298/tsci150121033m

Cited by 5 publications

(6 citation statements)

References 15 publications

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“…In contrast to literature and research papers [1,2,3,4,5,6,7,8,9,10] all which shows DC power efficiency and solar cell conversion efficiency decrease with increase in cell temperature above 25 o C, this paper brings forward for the first time ever the defining positive role of high cell temperature on DC power efficiency and solar cell conversion efficiency. High efficiency is obtained only at high temperature, further efficiency variations are governed by voltage variations and as voltage variations are governed by cell temperature it is the cell temperature that plays the defining positive role on both E 1 and E 2 .…”

Section: Resultscontrasting

confidence: 71%

“…In summers both E 1 and E 2 increase with increase in POA and increase in cell temperature even as cell temperature increases up to 58. High V dc is obtained only at high cell temperature as mentioned by Garg and JB [14] and is also visible from figures 1,3,5,7,9,12,14,18,20,22,24,26,28  For spring season, the average cell temperature varies between 39-43 o C with average E 1 and E 2 varying between 7.20 to 7.40% and 42.52% to 43.71% respectively.…”

Section: Variation Of Solar Cell Conversion Efficiency(e1) DC Power mentioning

confidence: 61%

“…Literature and several research papers show that both power output and efficiency decrease with increase in temperature [1,2,3,4,5,6,7,8,9,10]. Elminir et al showed that temperature coefficient for current, power and efficiency were about + 40 μA/ o C, -0.4mW/ o C and -0.4%/ o C respectively [2].…”

Section: Introductionmentioning

confidence: 99%

“…Skoplaki et al concluded that power output and efficiency decrease linearly with increase in cell temperature [4]. Milosavljevic et al investigated efficiency of monocrystalline solar photovoltaic (SPV) power plant and found that increase in solar radiation increases cell temperature which in turn decreases open circuit voltage reducing efficiency [5]. Power temperature coefficient of -0.5%/ o C for polycrystalline silicon and -0.25%/ o C for amorphous silicon was reported by King et al while -0.4%/ o C for crystalline silicon was reported by Sick and Erge [6].…”

Section: Introductionmentioning

confidence: 99%

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The Defining Positive Role of High Cell Temperature on the Efficiency of a Multicrystalline Solar Photovoltaic Array

Garg¹,

Arun²

2019

CAE

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The progress in solar photovoltaic cell technology has led to development of several different types of cell varying widely in efficiency, performance and cost but still multicrystalline cell is the most widely used commercial cell. The maximum laboratory efficiency of multicrystalline cell is about 22% which is hardly attainable in field due to entirely different and variable climatic conditions. Increasing the efficiency in real field conditions is one of the greatest challenges of solar photovoltaics. Evaluating effect of major climatic parameters on the efficiency in the real field conditions can pave the way for increasing the efficiency of solar photovoltaic power plants. This paper evaluates the relative effect and role of irradiance and cell temperature acting simultaneously on solar cell conversion efficiency and DC power efficiency of a multicrystalline photovoltaic array for the climatic conditions of Western Rajasthan. It brings forward for the first time ever the defining positive role of cell temperature on the solar cell conversion efficiency and DC power efficiency of a multicrystalline photovoltaic array in contrast to literature and research papers all which show efficiency decreases with increase in temperature.

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Section: Resultscontrasting

confidence: 71%

Section: Variation Of Solar Cell Conversion Efficiency(e1) DC Power mentioning

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Defining Positive Role of High Cell Temperature on the Efficiency of a Multicrystalline Solar Photovoltaic Array

Garg¹,

Arun²

2019

CAE

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“…The increase of the solar radiation induces increase of the ambient and PV modules temperature which leds to PV plant efficiency decreases. Local climate conditions significantly affect the amount of generated electrical energy and before any energy planning it is very important to have measured energy output of PV system at the site and all the location characteristics must be taken into account [17].…”

Section: Main Location Featuresmentioning

confidence: 99%

Analysis of electric power production results in South Serbia: Recommendations for improvement of operation of first mini photovoltaic power plants

et al. 2018

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Original scientific paper https://doi.org/10.2298/TSCI170531123M Solar radiation in Serbia is for about a third higher than in Middle Europe, which represents a very favorable energy potential. Southeast Serbia is a leading area in this aspect, since the annual average of daily global radiation on a horizontal surface exceeds 4.2 kWh/m 2 . This paper compares four photovoltaic power plants installed in southeastern Serbia. Analyzes are done based on results from two years of power plant exploitation. The power plants are not located in the same areathere are differences between topography and altitude of their locations, which is also taken into account during analyzes. Photovoltaic modules have different orientation and inclination toward horizontal surface, and their capacity varies from 30-40 kW. The conclusion provides recommendations for improvement of production where it is actually possible.RES. This goal was laid out through obligatory national sub-goals, which took into account different starting points of the member states [2]. Regarding solar energy, the White book of the EU from 1997, set a goal that by 2010 the total capacity of installed photovoltaic (PV) systems should reach 3 GW [3]. The predicted PV solar system capacity was reached earlier than planned and already by the end of 2008, the total capacity was 9.5 GW [4,5]. More than half of European PV power plants were installed in Germany, approximately 5.3 GW and about 1/3 in Spain. Since 2005, solar PV electricity generation capacity has increased from 1.9 GW in 2005 to 80.7 GW by the end of 2013, and the 2020 National Renewable Energy Action Plan (NREAP) target of 84.4 GW was exceeded, fig. 1, by the end of 2014, reaching about 88.4 GW [6]. Energy Law of the Republic of Serbia set the legal framework and the ability to use incentives in the production of electricity from renewable sources.

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Photovoltaic solar plants in the Republic of Srpska - current state and perspectives

Milosavljević

Pavlović

Mirjanić³

et al. 2016

Renewable and Sustainable Energy Reviews

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Energy efficiency of photovoltaic solar plant in real climate conditions in Banja Luka

Cited by 5 publications

References 15 publications

The Defining Positive Role of High Cell Temperature on the Efficiency of a Multicrystalline Solar Photovoltaic Array

The Defining Positive Role of High Cell Temperature on the Efficiency of a Multicrystalline Solar Photovoltaic Array

Analysis of electric power production results in South Serbia: Recommendations for improvement of operation of first mini photovoltaic power plants

Photovoltaic solar plants in the Republic of Srpska - current state and perspectives

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