scholarly journals Investigation of Solar Photovoltaic-Thermal (PVT) and Solar Photovoltaic (PV) Performance: A Case Study in Ghana

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2701 ◽  
Author(s):  
Saeed Abdul-Ganiyu ◽  
David A Quansah ◽  
Emmanuel W Ramde ◽  
Razak Seidu ◽  
Muyiwa S. Adaramola
Keyword(s):  
Alternative Energy ◽  
Crystalline Silicon ◽  
Real Life ◽  
Electrical Energy ◽  
Energy Output ◽  
Total Output ◽  
Energy Yield ◽  
Solar Photovoltaic ◽  
Pv System ◽  
Yearly Average

The main objective of this paper is to experimentally assess the real-life outdoor performance of a photovoltaic-thermal (PVT) module against a conventional photovoltaic (PV) system in a hot humid tropical climate in Ghana. An experimental setup comprising a water-based mono-crystalline silicon PVT and an ordinary mono-crystalline silicon PV was installed on a rooftop at the Kwame Nkrumah University of Science and Technology in Kumasi and results evaluated for the entire year of 2019. It was observed that the annual total output energy of PV module was 194.79 kWh/m2 whereas that of the PVT for electrical and thermal outputs were 149.92 kWh/m2 and 1087.79 kWh/m2, respectively. The yearly average daily electrical energy yield for the PV and PVT were 3.21 kWh/kWp/day and 2.72 kWh/kWp/day, respectively. The annual performance ratios for the PV and PVT (based on electrical energy output only) were 79.2% and 51.6%, respectively, whilst their capacity factors were, respectively, 13.4% and 11.3%. Whereas the highest monthly mean efficiency recorded for the PV was 12.7%, the highest combined measured monthly mean electrical/thermal efficiency of the PVT was 56.1%. It is also concluded that the PVT is a worthy prospective alternative energy source in off-grid situations.

scholarly journals A Techno-Economic Comparative Study of a Grid-Connected Residential Rooftop PV Panel: The Case Study of Nahr El-Bared, Lebanon

2021 ◽  
Vol 11 (2) ◽  
pp. 6956-6964
Author(s):  
H. Camur ◽  
Y. Kassem ◽  
E. Alessi
Keyword(s):  
Crystalline Silicon ◽  
Renewable Energy Sources ◽  
Average Energy ◽  
Electrical Energy ◽  
Energy Output ◽  
Small Scale ◽  
Pv System ◽  
Pv Systems ◽  
Pv Panel

Lebanon suffers from daily electricity shortages. The country has paid much attention to renewable energy sources, particularly solar, to gradually replace conventional energy. Installing a photovoltaic (PV) system becomes increasingly attractive for residential consumers due to the rising electricity tariff rates while it reduces the dependency on domestic power generators. No known study has dealt with the investigation of potential grid-connected rooftop PV systems with various sun-tracking modes and PV technologies in Nahr El-Bared, Lebanon. Consequently, the main objective of the current paper is to investigate the feasibility of a 5kW grid-connected PV system of various technologies (mono-crystalline silicon and poly-crystalline silicon) and sun-tracking modes including fixed tilt and 2-axis systems for rooftop households in Lebanon. The Nahr El-Bared camp was the case study was of the paper. RETScreen Expert software was used to evaluate the techno-economic performance of the proposed systems. The results show that the annual electrical energy from a fixed 5kW PV panel tilted at an optimal angle ranged from 8564.47kWh to 8776.81kWh, while the annual electrical energy from the PV tracking system was within the range of 11511.67-12100.92kWh. This amount of energy output would contribute significantly to reduce the energy shortage in the country. A typical household was selected to establish a load profile and load supply during both grid availability and outage periods. The highest energy consumption that can be covered by the PV systems was recorded during the spring and summer seasons. Also, the average energy production cost ranged from 0.0239 to 0.0243$/kWh for all the proposed systems. It was concluded that a 5kW grid-connected rooftop PV system could be economically justifiable. Finally, this study tried to increase the awareness about utilizing PV sun-tracking systems and the feasibility of small-scale grid-connected rooftop PV systems in the selected regions. The results of this research can help investors in the energy and building sectors.

scholarly journals Design of A 11 KWp Grid Connected Solar Photovoltaic Power Plant on 100 m2 available Area in the Birbhum District of West Bengal

1970 ◽  
Vol 8 (1-2) ◽  
pp. 105-112
Author(s):  
Souvik Ganguli ◽  
Sunanda Sinha
Keyword(s):  
Alternative Energy ◽  
West Bengal ◽  
Energy Output ◽  
Solar Photovoltaic ◽  
Pv System ◽  
Environment Friendly ◽  
Alternative Energy Sources ◽  
Load Demand ◽  
Photovoltaic Power ◽  
Birbhum District

The depletion of fossil fuel resources on a worldwide basis has necessitated an urgent search for alternative energy sources to meet present day demands. Solar energy is a clean, inexhaustible and environment-friendly potential renewable energy option. A stand-alone solar photovoltaic cannot provide a continuous supply of energy due to seasonal and periodic variations. Therefore, in order to satisfy load demand, grid connected energy systems are now being implemented that combine solar and conventional conversion units. The objective of this work is to estimate the potential of grid quality solar photovoltaic power in the Birbhum district of West Bengal and develop a system based on the potential energy estimated for an available land area of 100 m2. Specific equipment specifications are utilized based on the availability of components in India.Key Words: Diurnal variations; Daily Energy Output; Monthly Energy Output; Grid Connected Photovoltaic (PV) System; PWM Inverters; Solar Radiation; Yearly Energy OutputDOI: http://dx.doi.org/10.3126/jie.v8i1-2.5100Journal of the Institute of Engineering Vol. 8, No. 1&2, 2010/2011Page: 105-112Uploaded Date: 20 July, 2011

scholarly journals Solar Electricity System Design for Administrative Buildings

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Daniel O Johnson ◽  
Kabiru A Hassan ◽  
Sunday O Okusanya ◽  
James O Oladapo
Keyword(s):  
Electric Power ◽  
Real Life ◽  
Living Condition ◽  
Photovoltaic System ◽  
Energy Yield ◽  
Solar Photovoltaic ◽  
Diesel Generator ◽  
Pv System ◽  
Research Activities ◽  
Solar Electricity

Regular availability of electricity is fundamentally important for everyday running and productivity of any organisation. In any modern society, stable and reliable electric power is a basic need, without which living condition becomes substandard and smooth business operations become difficult. Unreliability of power services in Nigeria is taking its toll on administrative, academic and research activities at Federal Polytechnic, Ede, just like other institutions in the country. Diesel generator on which the institution depends for alternative power source during outage is not sustainable as outage is too frequent and the duration is usually long, at times for days. This results in a very high running cost if normal activities in the institution are to go unimpeded. This work is on the design of 172.84kWP Solar Photovoltaic (PV) System aimed at permanently addressing the electric power challenges at the Administrative Blocks of the Federal Polytechnic, Ede. The proposed project’ design was simulated and the results show that its real life performance is highly promising. The least energy yield of the PV system occurs in June with 549.93kWh/day as against the maximum demand of 457.30kWh/day. The system performance is much higher in the months of September to March as solar irradiance is higher in these months. The PV plant has active service life of over 25years without significant change in its efficiency. The benefits of the proposed project are manifold. The project if implemented will solve the electric power problem of the institution at the Administrative’ Building by providing stable, adequate and reliable 24-hour a day electricity. The estimated cost of the proposed project is N45, 000,000  which is much cheaper than diesel generator and interestingly, is appreciably less than the cost of unreliable power supply from the grid. Keywords: Energy yield, off-grid, photovoltaic system, solar electricity, solar photovoltaic

scholarly journals Performance Analysis of a Grid-Connected Rooftop Solar Photovoltaic System

Electronics ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 905 ◽  
Author(s):  
Akpolat ◽  
Dursun ◽  
Kuzucuoğlu ◽  
Yang ◽  
Blaabjerg ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Simulation Study ◽  
Alternative Energy ◽  
Sunshine Duration ◽  
Clean Energy ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Pv System ◽  
Simulation Results ◽  
Rooftop Solar

Turkey is among the countries largely dependent on energy import. This dependency has increased interest in new and alternative energy sources. Installation of rooftop solar photovoltaic systems (RSPSs) in Turkey is increasing continuously regarding geographical and meteorological conditions. This paper presents an insight into the potential situation for Turkey and a simulation study for the RSPS designing and calculation for the faculty building at Marmara University in Istanbul. This simulation study demonstrates that 84.75-kWp grid-connected RSPS can produce remarkable power. The system is performed in detail with the PV*SOL software (Premium 2017 R8 - Test Version, Valentin Software GmbH, Berlin, Germany). Detailed financial and performance analysis of the grid-connected RSPS for faculty building with various parameters is also carried out in this study. According to the simulation results, the system supplies 13.2% of the faculty buildings’ annual electrical energy consumption. The annual savings value of faculty buildings’ electrical consumption is approximately 90,298 kWh energy which costs roughly $7296. A photovoltaic (PV) system installation for the faculty building, which has considerable potential for solar energy and sunshine duration, is indispensable for clean energy requirements and was supported by the simulation results. This paper can be considered to be a basic feasibility study prior to moving on to the implementation project.

Performance Enhancement of Partially Shaded Solar Photovoltaic Array Using Grouping Technique

2015 ◽  
Vol 137 (3) ◽  
Author(s):  
S. Malathy ◽  
R. Ramaprabha
Keyword(s):  
Control Algorithm ◽  
Performance Enhancement ◽  
Multilevel Inverter ◽  
Energy Yield ◽  
Solar Photovoltaic ◽  
Pv System ◽  
Effective Technique ◽  
Photovoltaic Array ◽  
Efficient Control

The energy yield of the photovoltaic (PV) system is reduced to a greater extent under shaded conditions. Reconfiguration and repositioning techniques demand more number of sensors, switches, and an efficient control algorithm and are well suited for rapidly changing shade conditions. However, for fixed shading that is common in urban rooftop installations, where the shading is partial and usually caused by nearby structures, a simple, yet effective technique is necessary. This paper addresses the issue by grouping the panels based on shade intensity and the merits of asymmetrical multilevel inverter (AMLI) are utilized as the working voltage of each group is different.

scholarly journals Design of Augmented Cooling System for Urban Solar PV System

2021 ◽  
Vol 335 ◽  
pp. 03002
Author(s):  
Chong Jia Joon ◽  
Kelvin Chew Wai Jin
Keyword(s):  
Cooling System ◽  
Electrical Energy ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Pv System ◽  
Pv Panel ◽  
Solar Pv System ◽  
Low Efficiency ◽  
Electrical Loads ◽  
Temperature Output

Solar photovoltaic (PV) panels have been widely used to convert the renewable energy from the sun to electrical energy to power electrical loads but suffers from relatively low efficiency between 15% to 22%. Typically, the panels have an average lifespan of 25 to 30 years but could degrade quicker due to the panel overheating. Beyond the optimum working temperature of 25°C, a drop of efficiency by 0.4 to 0.5% for every 1°C had been reported. For solar PV applications in urban regions, passive cooling is beneficial due to limited amount of space and lower energy consumption compared to active cooling. A solar PV system with augmented cooling was conducted at a balcony of a condominium from 10am until 2pm. The solar PV system consisted of an Arduino controller, solar panel module, temperature sensor and LCD monitor. Reusable cold and hot gel packs were attached to the bottom of the solar PV. Both setups of solar PV panel with and without the cooling system were placed at the balcony simultaneously for measurement of temperature, output voltage and current. From this research, the outcome of implementing a cooling system to the solar PV increases the efficiency of the energy conversion.

scholarly journals The Electrical Energy Modeling of the Modular Off-Grid PV System for Aquaculture Application in the EEC Region

2021 ◽  
Vol 302 ◽  
pp. 01006
Author(s):  
Sukkhi Buakaew ◽  
Prayut Jiamrittiwong ◽  
Nutdechatorn Puangngernmak
Keyword(s):  
Electrical Energy ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Pv System ◽  
Modular Systems ◽  
Traditional System ◽  
Recirculating Aquaculture ◽  
Recirculating Aquaculture Systems ◽  
Gravid Females ◽  
Solar Photovoltaic System

Renewable energy as a solar photovoltaic system represents an essential role in improving and promoting energy sustainability in agricultural/aquaculture-related activities. The “Crab Bank” is the program on practicing the caught gravid females of Blue Swimming Crab (BSC) in supporting conditions, allowing them to spawn and then release the zoea and young crabs back to the sea where are in the Eastern Economic Corridor (EEC). Onward with the project, many scientific studies assess the BSC stocks condition, evaluate the fishing habitat, and other relevant issues as the energy used in a micro-indoor system as Recirculating Aquaculture Systems (RAS). The off-grid solar photovoltaic system is used in the system cause the installed location was near the seaside area. The system’s large size was operating, including solar panels, inverter, charger, and batteries to maintain the AC motor pump, affecting much energy loss in the system. The off-grid solar system design for modular systems is represented in this paper to describe the new structure of the micro modular RAS that reduces cost and increases the solar system’s efficiency in modular concepts comparing the traditional system. The new structure model represents the calculation result in the term of electrical energy and experiment to scale for replacement in the aquaculture area in Rayong or Jantaburi in the EEC region. This research is a cooperation between KMUTNB Rayong and the Provincial Energy Office Of Rayong.

scholarly journals The electrical energy impact of small-scale onsite generation: A case study of a 75 kWp grid-tied PV system

2020 ◽  
Vol 31 (4) ◽  
pp. 1-15
Author(s):  
Russel Mhundwa ◽  
Michael Simon ◽  
Joel Nana Yongoua
Keyword(s):  
Electrical Energy ◽  
Energy Requirements ◽  
Small Scale ◽  
Energy Yield ◽  
Eastern Cape ◽  
Solar Pv ◽  
Pv System ◽  
Total Load ◽  
Utility Grid ◽  
The Impact

This study presents an analysis of a 75 kWp grid-tied solar photovoltaic (PV) system with a grid tie limiter to provide energy requirements for an aquaculture centre in the Eastern Cape province of South Africa. A data acquisition system, comprising power and energy consumption meters, was deployed to measure solar PV generation, demand for the facility, and energy drawn from the utility grid. Statistical analysis was conducted on the data to determine the impact of the solar PV plant in reducing demand from the utility grid throughout the day, and this was extrapolated into monthly and annual contributions by the PV system to meeting the energy requirements. Findings reveal that the annual energy yield for the system was 1 864.29 kWh/kWp. The solar contribution to the total load requirement on a 24 hour cycle was 28% (139.82 MWh) from July 2018 to June 2019. Summer and winter average contributions by the PV system were 62% and 57% respectively for the period of 05:30–18:30. The mean monthly solar fraction for operating the farm between sunrise and sunset was 0.44. Furthermore, a total of 141.07 tCO2 has been avoided due to the operation of the PV system.

scholarly journals Review of solar photovoltaic/thermal (PV/T) air collector

2019 ◽  
Vol 9 (1) ◽  
pp. 126 ◽  
Author(s):  
Ahmad Fudholi ◽  
Mariyam Fazleena Musthafa ◽  
Abrar Ridwan ◽  
Rado Yendra ◽  
Hartono Hartono ◽  
...  
Keyword(s):  
Electrical Energy ◽  
Photoelectric Effect ◽  
Solar Air Heater ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Pv System ◽  
Collector System ◽  
Promising Area ◽  
Solar Pv System ◽  
Solar Thermal Collectors

<span lang="EN-US">Growing concern with regard to energy sources and their usage has consequently increased significance of photovoltaic thermal (PV/T) collectors. A PV/T air collector is a system which has a conventional PV system combined with a thermal collector system. The system is able to produce electrical energy directly converted from sunlight by using photoelectric effect. Meanwhile, it also extracts heat from the PV and warms the fluid (air flow) inside the collector. In this review, solar PV system and solar thermal collectors are presented. In addition, studies conducted on solar PV/T air collectors are reviewed. The development of PV/T air collectors is a very promising area of research. PV/T air collectors using in solar drying and solar air heater.</span>

scholarly journals Performance investigation of grid-connected photovoltaic systems for family household: A case study in Amman, Jordan

2021 ◽  
Vol 926 (1) ◽  
pp. 012092
Author(s):  
Y Kassem ◽  
H Çamur ◽  
A A Othman ◽  
L Alshrouf ◽  
M Yasin ◽  
...  
Keyword(s):  
Crystalline Silicon ◽  
Tracking System ◽  
Average Energy ◽  
Electrical Energy ◽  
Energy Output ◽  
Small Scale ◽  
Optimal Angle ◽  
Pv Systems ◽  
Scale Grid

Abstract The main objective of the paper is to investigate the feasibility of small-scale grid-connected PV systems with various PV technologies (mono-crystalline silicon and poly-crystalline silicon) and sun-tracking modes including fixed tilt and 2-axis systems for rooftop households in Amman, Jordan. A case study is applied to Al Jama’a and Abu Nusir, Amman, Jordan. Typical households were chosen for this region to establish a load profile according to monthly electrical bills. The results show that the annual electrical energy from fixed small-scale PV panels tilted at an optimal angle was ranged from 3499.04kWh to 8811.62kWh, while the annual electrical energy from the PV tracking system was within the range of 4788.05-12128.30kWh. This amount of energy output would contribute significantly to reduce fossil fuel consumption and CO2 emissions in the country. Moreover, it is found that the highest energy consumption can be covered by PV systems is recorded in winter. Also, the average energy production cost is ranged from 0.0444-0.0530$/kWh for all proposed systems based on the financial assumptions used in this study. It is concluded that the small-scale grid-connected rooftop PV systems are found to be economically justifiable.

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