Article Processing Charges (APC)
Design and Economic Analysis of a Grid-connected Rooftop Solar PV System for Typical Home Applications in Oman
This paper presents a techno-economic investigation of an integrated rooftop solar PV system for typical home applications in Oman that can reduce the power consumption from the grid and export excess PV generated power back to the gird. Since renewable energy systems design echnically depends on the site, this study selects a typical two-story villa (Home), in a site Al-Hamra, Oman. Temperature is one of the critical parameters in this design as it varies widely over the day and from one season to another in Oman. With the effect of temperature variation, the PV system has designed using system models for the required load of the home. The design process has included two main design constraints, such as the available rooftop space and the grid-connection availability for the selected home.This research also evaluates the economic feasibility of the design system considering the energy export tariff as per the Bulk Supply Tariff (BST) scheme in Oman. The design outcome reveals that the designed PV system can supply the load energy requirement in a year. In addition, the rooftop solar PV system can sell surplus energy back to the grid that generates additional revenue for the owner of the system. The economic performance indices such as payback period, internal rate of return, net present value,and profitability index ensure the financial feasibility of the designed rooftop solar PV system for the selected home.
Keywords:Rooftop PV system, System design, Temperature effect, Energy tariff, Economic analysis
 Al-Badi AH, Ahshan R, Hosseinzadeh N. Ghorbani R,Hossain E. Survey of Smart Grid Concepts and Technological Demonstrations Worldwide Emphasizing on the Oman Perspective. Appl. Syst.Innov., 2020, 3,5.
 OPWP’s 7-YEAR STATEMENT (2019 - 2025), Access on July 7, 2020.https://omanpwp.om/new/Documents.aspx?Pid=46
 A. C. Duman, O. Güler. Economic analysis of grid-connected residential rooftop PV systems in Turkey. Renewable Energy, 2020, 148: 697-711.
 O. Ellabban,A Alassi. Integrated Economic Adoption Model for residential grid-connected photovoltaic systems: An Australian case study. Energy Reports,2019, 5: 310-326
 E. Tarigana, Djuwaria, F. D. Kartikasarib. Techno-Economic Simulation of a Grid-Connected PV System Design as Specifically Applied to Residential in Surabaya, Indonesia. Energy Procedia, 2015, 65:90-99.
 S. Yoomak, T. Patcharoen, A. Ngaopitakkul. Performance and Economic Evaluation of Solar Rooftop Systems in Di_erent Regions of Thailand. Sustainability, 2019, 11, 6647.DOI:https://doi.org/10.3390/su11236647
 A. N. Akpolat, E. Dursun, A. E. Kuzucuoğlu, Y.Yang, F. Blaabjerg, A. F. Baba. Performance Analysis of a Grid-Connected Rooftop Solar Photovoltaic System. Electronics 2019, 8: 905.DOI:https://doi.org/10.3390/electronics8080905
 S. Moury, R. Ahshan. A feasibility study of an ongrid solar home system in Bangladesh. 2009 1st International Conference on the Developments in Renewable Energy Technology (ICDRET), Dhaka,2009: 1-4.
 M. Zeraatpisheh, R. Arababadi, M. S. Pour. Economic Analysis for Residential Solar PV Systems Based on Different Demand Charge Tariffs. Energies 2018,11: 3271.
 A. Maleki, M. A. Nazari, F. Pourfayaz. Harmony search optimization for optimum sizing of hybrid solar schemes based on battery storage unit. Available online 9 April 2020.
 G. Zhang, Y. Shi, A. Maleki, M. A. Rosen. Optimal location and size of a grid-independent solar/hydrogen system for rural areas using an efficient heuristic approach. Renewable Energy, 2020, 156: 1203-1214.
 A. H. Al-Badi, A. Malik, A. Gastli. Sustainable energy usage in Oman-opportunities and Barriers.Renewable and Sustainable Energy Reviews, 2011, 15:3780-8.
 Authority for Electricity Regulation - Oman, Study on renewable energy resources in Oman-Final Report by COWI and Partners LLC, Muscat, 2008.
 S. AL-Yahyai, Y.Charabi, A.Gastli, S. Al-Alawi. Assessment of wind energy potential locations in Oman using data from existing weather stations. Renewable and Sustainable Energy Reviews, 2010, 14:1428-1436.
 R. Ahshan, A. Al-Badi, N. Hosseinzadeh, M. Shafiq.Small Wind Turbine Systems for Application in Oman. 2018 5th International Conference on Electric Power and Energy Conversion Systems (EPECS),Kitakyushu, Japan, 2018: 1-6.DOI: https://doi.org/10.1109/EPECS.2018.8443520
 https://aer.om/en/sahim. Accessed on July 9, 2020.
 Ecohouse.om: Solar Energy - Eco House Oman.Available from URL:http://www.ecohouse.om/solar-energy/
 Unizwa.edu.om: EcoHouse Design @ University of Nizwa. Available from URL:http://www.unizwa.edu.om/ecoHouse/home.php?op=en_ener
 M. H. Albadi, R. S. Al Abri, M. I. Masoud, K. H. Al Saidi, A. S. Al Busaidi, A. Al Lawati, K. Al Ajmi, I.Al Farsi. Designing up to 50 kW Solar PV Rooftop System. ICSGCE 2014 Conference of Smart Grid and Clean Energy, Sharjah, UAE.
 Authority for Electricity Regulation (AER). Cost Relective Tariff (CRT). Muscat Electricity Distribution Company (MEDC) 2018.
 R. Ahshan, R. Al-Abri, Al-Zakwani, N. Ambu-saidi,E. Hossain. Design and Economic Analysis of a Solar Photovoltaic System for a Campus Sports Complex.International Journal of Renewable Energy Research,2020, 10(1): 67-78.
 M.C. A. García, J. L. Balenzategui. Estimation of photovoltaic module yearly temperature and performance based on Nominal Operation Cell Temperature calculations. Renewable Energy, 2004, 29: 1997-2010.
 G. M. Masters. Renewable and Efficient Electric Power Systems, Wiley, IEEE Press, 2013.
 M. Zeraatpisheh, R. Arababadi, M. S. Pour. Economic Analysis for Residential Solar PV Systems Based on Different Demand Charge Tariffs. Energies, 2018,11: 3271
 IRENA, Renewable Energy Market Analysis, GCC 2019, International Renewable Energy Agency, Abu Dhabi, 2019.
 W. Li, et al. Cost comparison of AC and DC collector grid for integration of large-scale PV power plants.The Journal of Engineering, 2017, 2017(13): 795-800.
How to Cite
Copyright © 2020 Razzaqul Ahshan, A. M. Al-Hanshi, M. A. Al-Naabi, H. A. Al-Hashmi, A. H. Al-Badi
This is an open access article under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.