scholarly journals Development of technical and statistical algorithm using Business Intelligence tools for energy yield assessment of large rooftop photovoltaic system ensembles

2022 ◽  
Vol 49 ◽  
pp. 101686
Author(s):  
Andrigo Filippo Antoniolli ◽  
Helena Flávia Naspolini ◽  
João Frederico de Abreu ◽  
Ricardo Rüther
Keyword(s):  
Business Intelligence ◽  
Photovoltaic System ◽  
Energy Yield ◽  
Statistical Algorithm

scholarly journals Methodology to Determine Photovoltaic Inverter Conversion Efficiency for the Equatorial Region

2019 ◽  
Vol 10 (1) ◽  
pp. 201
Author(s):  
Azhan Ab. Rahman ◽  
Zainal Salam ◽  
Sulaiman Shaari ◽  
Mohd Zulkifli Ramli
Keyword(s):  
Conversion Efficiency ◽  
Peak Power ◽  
Climatic Conditions ◽  
Equatorial Region ◽  
Photovoltaic System ◽  
Energy Yield ◽  
Peak Efficiency ◽  
Pv Systems ◽  
One Year ◽  
Equatorial Climate

Photovoltaic inverter conversion efficiency is closely related to the energy yield of a photovoltaic system. Usually, the peak efficiency (ηmax) value from the inverter data sheet is used, but it is inaccurate because the inverter rarely operates at the peak power. The weighted efficiency is a preferable alternative as it inherently considers the power conversion characteristics of the inverter when subjected to varying irradiance. However, since the weighted efficiency is influenced by irradiance, its value may not be appropriate for different climatic conditions. Based on this premise, this work investigates the non-suitability of the European weighted efficiency (ηEURO) for inverters installed in the Equatorial region. It utilizes a one year data from the Equatorial irradiance profile to recalculate the value of ηEURO (ηEURO_recal) and to compare it with the original ηEURO. Furthermore, a new weighted efficiency formula for the Equatorial climate (ηEQUA) is proposed. Validation results showed that calculated energy yield with ηEQUA closely matched the real energy yield of 3 kW system with only 0.16% difference. It is envisaged that the usage of ηEQUA instead of ηmax or ηEURO will results in a more accurate energy yield and return of investment calculations for PV systems installed in Equatorial regions.

Model for estimating the energy yield of a high concentrator photovoltaic system

Energy ◽  
2015 ◽  
Vol 87 ◽  
pp. 77-85 ◽  
Author(s):  
Eduardo F. Fernández ◽  
P. Pérez-Higueras ◽  
F. Almonacid ◽  
J.A. Ruiz-Arias ◽  
P. Rodrigo ◽  
...  
Keyword(s):  
Photovoltaic System ◽  
Energy Yield

Performance Analysis of 14 MW Grid-Connected Photovoltaic System

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Ahmed S Kagilik ◽  
Abduraouf M Tawel
Keyword(s):  
Performance Analysis ◽  
Power Plants ◽  
Large Scale ◽  
Photovoltaic System ◽  
Performance Ratio ◽  
First Year ◽  
Energy Yield ◽  
Plant Design ◽  
Pv System ◽  
Local Climate

Many Libyan authorities proposed to investigate the possibility of utilizing a suitable terrain in Libya to add generation capacity of large-scale photovoltaic power plants. In this paper, the first grid-connected PV plant of 14 MWp which will be executed in Hoon city and supported by the Renewable Energy Authority of Libya (REAOL) is presented. To understand and improve the operational behavior of PV system, a comprehensive study including the plant design and detailed performance analysis under a local climate conditions is performed. Using polycrystalline silicon technology, the first year energy yield is estimated and the monthly system output for this plant is calculated. The performance ratio and various power losses (temperature, irradiance, power electronics, interconnection, etc.) are determined. The PV system supplied 24964 MWh to the grid during the first year giving an average annual overall yield factor 1783 kWh/kWp and average annual performance ratio of the system of 76.9%.

scholarly journals Hardware Approach to Mitigate the Effects of Module Mismatch in a Grid-connected Photovoltaic System: A Review

Energies ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 4321 ◽  
Author(s):  
Hussain Bassi ◽  
Zainal Salam ◽  
Mohd Zulkifli Ramli ◽  
Hatem Sindi ◽  
Muhyaddin Rawa
Keyword(s):  
Photovoltaic System ◽  
Energy Yield ◽  
Pv System ◽  
Comparative Performance ◽  
System A ◽  
Dc Power ◽  
Financial Benefits ◽  
Technological Developments ◽  
Additional Circuitry

This study reviews the hardware approach to mitigate the effects of module mismatch in a grid-connected photovoltaic (PV) system. Unlike software solutions, i.e. the maximum power tracking algorithm, hardware techniques are well suited to enhance energy yield because of their inherent ability to extract energy from the mismatched module. Despite the extra cost of the additional circuitry, hardware techniques have recently gained popularity because of their long-term financial benefits. Notwithstanding the growing interest in this topic, review papers that provide updates on the technological developments of the three main hardware solutions, namely micro inverter, DC power optimizer, and energy recovery circuits, are lacking. This is in contrast to software solutions, which have had a considerable number of reputable reviews. Thus, a comprehensive review paper is appropriate at this juncture to provide up-to-date information on the latest topologies, highlight their merits/drawbacks, and evaluate their comparative performance.

scholarly journals Performance Analysis of 14 MW Grid-Connected Photovoltaic System

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Ahmed S Kagilik ◽  
Abduraouf M Tawel
Keyword(s):  
Performance Analysis ◽  
Power Plants ◽  
Large Scale ◽  
Photovoltaic System ◽  
Performance Ratio ◽  
First Year ◽  
Energy Yield ◽  
Plant Design ◽  
Pv System ◽  
Local Climate

Many Libyan authorities proposed to investigate the possibility of utilizing a suitable terrain in Libya to add generation capacity of large-scale photovoltaic power plants. In this paper, the first grid-connected PV plant of 14 MWp which will be executed in Hoon city and supported by the Renewable Energy Authority of Libya (REAOL) is presented. To understand and improve the operational behavior of PV system, a comprehensive study including the plant design and detailed performance analysis under a local climate conditions is performed. Using polycrystalline silicon technology, the first year energy yield is estimated and the monthly system output for this plant is calculated. The performance ratio and various power losses (temperature, irradiance, power electronics, interconnection, etc.) are determined. The PV system supplied 24964 MWh to the grid during the first year giving an average annual overall yield factor 1783 kWh/kWp and average annual performance ratio of the system of 76.9%.

scholarly journals Performance comparison of fixed and single axis tracker photovoltaic system in large scale solar power plants in Malaysia

2021 ◽  
Vol 21 (1) ◽  
pp. 10
Author(s):  
Baraa Mahmoud Dawoud ◽  
Siow Chun Lim
Keyword(s):  
Power Plants ◽  
Large Scale ◽  
Solar Power ◽  
Peninsular Malaysia ◽  
Performance Comparison ◽  
Photovoltaic System ◽  
Energy Yield ◽  
Solar Pv ◽  
Pv System ◽  
Comparative Performance

<span>Malaysia is rapidly expanding the generation capacity of solar power through large scale solar (LSS) projects with the aim to achieve 20% renewable energy mix by 2025. This has motivated many solar industry players to explore the usage of solar PV with single axis tracker (SAT) system. However, many are still hesitant due to the lack of understanding on the comparative performance between fixed mounted solar PV with solar PV with SAT system. This paper aims to provide a comparative analysis on the performance of both systems. Simulation using PVSyst 6.83 was performed in five potential LSS sites spread across Peninsular Malaysia in Perlis, Kelantan, Pahang, Selangor and Johor with the same installed capacity of 10.32MWp. The energy yield and capacity factor for 21 years were simulated. On the average, it was found that SAT outperforms fixed mounted solar PV system by 15.08% based on their performance on their first year operation. </span>

scholarly journals An optimum location of on-grid bifacial based photovoltaic system in Iraq

2022 ◽  
Vol 12 (1) ◽  
pp. 250
Author(s):  
Amina Mahmoud Shakir ◽  
Siba Monther Yousif ◽  
Anas Lateef Mahmood
Keyword(s):  
Photovoltaic System ◽  
Energy Yield ◽  
Optimum Location ◽  
Pv System ◽  
Pv Systems ◽  
Pv Module ◽  
System Module ◽  
Irradiation Level ◽  
The Cost ◽  
Suitable Location

Bifacial photovoltaic (PV) module can gain 30% more energy compared to monofacial if a suitable location were chosen. Iraq (a Middle East country) has a variable irradiation level according to its geographic coordinates, thus, the performance of PV systems differs. This paper an array (17 series, 13 parallel) was chosen to produce 100 kWp for an on-grid PV system. It investigates the PV system in three cities in Iraq (Mosul, Baghdad, and Basrah). Effect of albedo factor, high and pitch of the bifacial module on energy yield have been studied using PVsyst (software). It has been found that the effect is less for a pitch greater than 6 m. The energy gained from bifacial and monofacial PV system module in these cities shows that Mosul is the most suitable for installing both PV systems followed by Baghdad and lastly Basrah. However, in Basrah, the bifacial gain is 12% higher in the energy than monofacial as irradiation there is higher than the other locations, especially for elevation above 1.5 m. Moreover, the cost of bifacial array is 7.23% higher than monofacial, but this additional cost is acceptable since the bifacial gain is about 11.3% higher energy compared to the monofacial.

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