scholarly journals Sizing a 3 kWp Retrofitted Grid-Connected Photovoltaic System: a Case Study in Tropical Malaysia

2019 ◽  
Vol 7 (4.14) ◽  
pp. 466
Author(s):  
Hedzlin Zainuddin ◽  
Farah Liyana Muhammad Khir ◽  
NA Baharudin ◽  
ZAbd Rahman
Keyword(s):  
Customer Satisfaction ◽  
Photovoltaic System ◽  
Energy Yield ◽  
Mathematical Approach ◽  
Array Configuration ◽  
Pv Array ◽  
System A ◽  
Percentage Difference ◽  
And Performance

The work presents a tropical case study of sizing 3 kWp retrofitted  grid-connected photovoltaic system (GCPV) installed in Klang, Malaysia. The sizing was based on customer’s budget requirement of RM 22, 500 and conducted through a designated mathematical approach. The mathematical approach involved technical aspects which aligns the voltage and current specifications of both PV array and inverter. Besides, this approach includes possible severe climatic condition of solar irradiance and ambient temperature variations. By implementing the sizing mathematical approach in this study, the final PV array configuration is 1 x 9 (1 parallel x 9 series). This study was also conducted to compare between the actual and the predicted energy yield to reflect customer satisfaction. Based on the result, the percentage differences are acceptable for February and March 2018. Interestingly, the percentage difference for January 2018 was over-predicted and the abnormality was suggested to be resulted from the inaccuracy of the Peak Sun Hour (PSH) estimation. In conclusion, this study is significant as an overview on the sizing and performance reliability of GCPV system in tropical Malaysia to meet up the customer satisfaction. 

scholarly journals Sizing verification of a 4kWp retrofitted grid-connected photovoltaic system: a case study in Shah Alam, Malaysia

2020 ◽  
Vol 17 (2) ◽  
pp. 654
Author(s):  
F.A.M. Shukor ◽  
H. Zainuddin ◽  
A. Manja ◽  
F. L. M. Khir
Keyword(s):  
Renewable Energy ◽  
Nuclear Energy ◽  
Best Practice ◽  
Photovoltaic System ◽  
Pv System ◽  
Simulation Tools ◽  
Array Configuration ◽  
System A ◽  
Mathematical Design

Electricity are commonly generated from several types of energy resources such as fossil and nuclear energy. However, due to emission of carbon dioxide from both sources, renewable energy is introduced to provide a clean and secure sustainable energy. One of the potential renewable energy application is Photovoltaic (PV) system; namely grid-connected photovoltaic (GCPV) system and stand-alone photovoltaic (SAPV) system. In this study, a mathematical approach of SEDA’s GCPV sizing model is implemented to size a 4kWp of a retrofitted GCPV system by the method claimed to be the best practice mathematical design model under tropical climate Malaysia.  The outcome of the sizing approach will then be evaluated with HelioScope software, one of commercial simulation tools available in current market.  The final result obtained from both methods shows that the final PV array configuration is 1 x 12 (parallel x series) which is in agreement to the actual installed system.

scholarly journals Researches of the Impact of the Nominal Power Ratio and Environmental Conditions on the Efficiency of the Photovoltaic System: A Case Study for Poland in Central Europe

2020 ◽  
Vol 12 (15) ◽  
pp. 6162
Author(s):  
Mariusz T. Sarniak
Keyword(s):  
Climatic Conditions ◽  
Photovoltaic System ◽  
Energy Yield ◽  
Power Ratio ◽  
Pv System ◽  
Second Stage ◽  
Pv Inverter ◽  
System A ◽  
The Impact

The paper analyzes a case study of the impact of changing the nominal power ratio (NPR) on the efficiency of a PV (photovoltaic) system located in Poland. In the first stage of the research, the acceptable range of variability for NPR was determined based on simulation calculations, taking into account the parameters of PV modules, inverter, and climatic conditions. The second stage was verification tests for two acceptable extreme cases, carried out based on the analysis of detailed data from the monitoring of PV installations. The results of the verification tests for the two considered periods of operation of the PV system with the change of the NPR coefficient from 82% to 98% resulted in an increase in the annual energy yield by 446.2 kWh. On the other hand, higher relative values of generated energy were obtained only for the months with the lowest insolation in December and in January by 8.2 and 6.04 kWh/kWp, respectively. Higher oversizing of the PV generator (for NPR = 82%) also resulted in an increase by 6.4% in the frequency of operation of the PV inverter in the largest power range (2250–2500 W) and a decrease by 3.7% in the frequency in the lowest power range (0–250 W) for the whole year.

scholarly journals Significance of Storage on Solar Photovoltaic System—A Residential Load Case Study in Australia

2013 ◽  
Vol 04 (02) ◽  
pp. 167-180 ◽  
Author(s):  
Mohammad T. Arif ◽  
Amanullah M. T. Oo ◽  
A. B. M. Shawkat Ali ◽  
G. M. Shafiullah
Keyword(s):  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Load Case ◽  
System A ◽  
Solar Photovoltaic System

scholarly journals Microgrid analysis using HOMER: a case study

DYNA ◽  
2018 ◽  
Vol 85 (207) ◽  
pp. 129-134 ◽  
Author(s):  
David Restrepo ◽  
Bonie Restrepo ◽  
Luz Adriana Trejos-Grisales
Keyword(s):  
Renewable Energy Sources ◽  
Energy Systems ◽  
Weather Conditions ◽  
Photovoltaic System ◽  
Energy Sources ◽  
System A ◽  
Current Energy ◽  
Local Weather ◽  
Economic Studies

The integration of renewable energy sources to create microgrids is drawing growing interest to address current energy-related challenges around the globe. Nevertheless, microgrids must be analyzed using specialized tools that allow to conduct operation, technical and economic studies. In that regard, this paper presents a case study in which the software HOMER Energy Pro was implemented to design and analyze the performance of a microgrid. Such microgrid comprises a photovoltaic system, a wind system and a diesel plant. The parameters of the energy systems are based on information about local weather conditions available in databases. Finally, this analysis is performed under two conditions: stand-alone and grid-tied.

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