scholarly journals Orientation and Tilt Dependence of a Fixed PV Array Energy Yield Based on Measurements of Solar Energy and Ground Albedo – a Case Study of Slovenia

10.5772/18386 ◽  
2011 ◽  
Author(s):  
Joze Rakovec ◽  
Klemen Zaksek ◽  
Kristijan Brecl ◽  
Damijana Kastelec ◽  
Marko Topic
Keyword(s):  
Solar Energy ◽  
Energy Yield ◽  
Pv Array

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 A Combined Approach for Model-Based PV Power Plant Failure Detection and Diagnostic

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1261
Author(s):  
Christopher Gradwohl ◽  
Vesna Dimitrievska ◽  
Federico Pittino ◽  
Wolfgang Muehleisen ◽  
András Montvay ◽  
...  
Keyword(s):  
Power Plants ◽  
Large Scale ◽  
Failure Detection ◽  
Energy Yield ◽  
Combined Approach ◽  
Levelized Cost Of Electricity ◽  
Term Operation ◽  
Model Based

Photovoltaic (PV) technology allows large-scale investments in a renewable power-generating system at a competitive levelized cost of electricity (LCOE) and with a low environmental impact. Large-scale PV installations operate in a highly competitive market environment where even small performance losses have a high impact on profit margins. Therefore, operation at maximum performance is the key for long-term profitability. This can be achieved by advanced performance monitoring and instant or gradual failure detection methodologies. We present in this paper a combined approach on model-based fault detection by means of physical and statistical models and failure diagnosis based on physics of failure. Both approaches contribute to optimized PV plant operation and maintenance based on typically available supervisory control and data acquisition (SCADA) data. The failure detection and diagnosis capabilities were demonstrated in a case study based on six years of SCADA data from a PV plant in Slovenia. In this case study, underperforming values of the inverters of the PV plant were reliably detected and possible root causes were identified. Our work has led us to conclude that the combined approach can contribute to an efficient and long-term operation of photovoltaic power plants with a maximum energy yield and can be applied to the monitoring of photovoltaic plants.

scholarly journals Economic efficiency in the use of solar energy: A case study of Agriculture in Uzbekistan

2020 ◽  
Vol 614 ◽  
pp. 012031
Author(s):  
D Kodirov ◽  
O Tursunov ◽  
A Ahmedov ◽  
R Khakimov ◽  
M Rakhmataliev
Keyword(s):  
Solar Energy ◽  
Economic Efficiency

scholarly journals 4E assessment of power generation systems for a mobile house in emergency condition using solar energy: a case study

2020 ◽  
Author(s):  
Alireza Refiei ◽  
Reyhaneh Loni ◽  
Gholamhassan Najafi ◽  
Evangelos Bellos ◽  
Mohsen Sharifpur ◽  
...  
Keyword(s):  
Power Generation ◽  
Solar Energy ◽  
Emergency Condition ◽  
Power Generation Systems

Application of Renewable Energy in the Construction

2012 ◽  
Vol 193-194 ◽  
pp. 111-114 ◽  
Author(s):  
Yue Ren ◽  
Zhi Qi
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Energy Conservation ◽  
Geothermal Energy ◽  
Renewable Sources ◽  
Renewable Sources Of Energy ◽  
Integrated Project

We discuss the form of application of renewable sources of energy including solar energy and geothermal energy in the environment of construction, and an integrated project on renewable sources of energy is taken as a case study. We also analyze the feasible plans that utilize multiple renewable sources of energy in the construction. The significance of the energy conservation and reduction is presented as well.

scholarly journals Discovering Opportunities in the Solar Energy Industry: A Subjectivistic View of Entrepreneurial Activity

2014 ◽  
Vol 3 (3) ◽  
pp. 124-139
Author(s):  
Gloria Cuevas-Rodriguez ◽  
Carmen Cabello-Medina
Keyword(s):  
Organizational Learning ◽  
Solar Energy ◽  
Energy Industry ◽  
Entrepreneurial Activity ◽  
Solar Energy Industry ◽  
The Creation

Using the subjectivist view of entrepreneurship, the focus of this paper centers on understanding how certain individuals have created opportunities in the solar energy industry. An in-depth case study is developed to analyse the subjectivist character of discovery and creativity; the relevance of organizational learning for entrepreneurship; and the role of entrepreneurs’ experiences in shaping a firm’s subjective productive opportunity set. Through this research the relationships between the subjective visions and experiences of entrepreneurs, and perceived opportunities are presented. Besides the diversity of the problems that entrepreneurs encounter during the creation and development of the company, and the range of resources utilized are also discussed.

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