Design of a 50 kW solar PV rooftop system

Author(s): M. H. Albadia, R. S. Al Abria, M. I. Masouda*, K. H. Al Saidib, A. S. Al Busaidic,
A. Al Lawatid, K. Al Ajmid, I. Al Farsie
a ECE dept., College of Engineering, Sultan Qaboos University, Muscat, P.C. 123, Sultanate of Oman
b Majan Electricity Company SAOC, P.O. Box 701, P.C. 116, Muscat, Sultanate of Oman
c Nizwa College of Technology, P.O. Box 477, P.C. 611 Nizwa, Sultanate of Oman
d Petroleum Development Oman, Box 81, P.C. 100, Muscat, Sultanate of Oman
e Halliburton Worldwide Limited, Box 2721, P.C. 111, Muscat, Sultanate of Oman
International Journal of Smart Grid and Clean Energy, vol. 3, no. 4, October 2014: pp. 401-409
ISSN: 2315-4462 (Print)
ISSN: 2373-3594 (Online)
Digital Object Identifier: 10.12720/sgce.3.4.

AbstractRenewable energy resources become very popular and commonly used nowadays. An example of a clean renewable energy resource is the energy generated using photovoltaic (PV) systems. As a result of using PV as a renewable energy resource, components of PV such as an inverter become widely used for this purpose and in order to enhance the maximum obtained power from PV, different methods were used to achieve the desired power, where it become a very considerable to use different methods to achieve desired maximum power received from PV. The main goal of this manuscript is to introduce the idea of using photovoltaic system, along with its components, (sizing of arrays, charge regulator ratings, inverter ratings and other related information), for a specific load, (Majan Electricity Company (MJEC) administration building – Sohar – Sultanate of Oman), to achieve a design generates power up to 50 kW from solar PV system. MJEC Company provided details of the available area of the rooftop. Solar irradiation data will be utilized to estimate the annual energy output as well and the cost per kWh of electricity generated from a specific PV system using RETSCREEN software. Economic indicators such as internal rate of return, the payback period, the net present value, the annual life cycle savings, and the cost renewable energy production will be considered as well.

KeywordsRenewable energy sources, PV, Inverter, Power system, Maximum power

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