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International Journal of Photoenergy
Volume 2015, Article ID 256101, 12 pages
Review Article

Price-Efficiency Relationship for Photovoltaic Systems on a Global Basis

1Department of Technical Vocational School, Bitlis Eren University, 13000 Bitlis, Turkey
2Department of Electrical and Electronics Engineering, Inonu University, 44280 Malatya, Turkey

Received 30 August 2015; Revised 29 September 2015; Accepted 1 October 2015

Academic Editor: Xudong Zhao

Copyright © 2015 Mehmet Sait Cengiz and Mehmet Salih Mamiş. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Solar energy is the most abundant, useful, efficient, and environmentally friendly source of renewable energy. In addition, in recent years, the capacity of photovoltaic electricity generation systems has increased exponentially throughout the world given an increase in the economic viability and reliability of photovoltaic systems. Moreover, many studies state that photovoltaic power systems will play a key role in electricity generation in the future. When first produced, photovoltaic systems had short lifetimes. Currently, through development, the technology lifecycle of photovoltaic systems has increased to 20–25 years. Studies showed that photovoltaic systems would be broadly used in the future, a conclusion reached by considering the rapidly decreasing cost of photovoltaic systems. Because price analysis is very important for energy marketing, in this study, a review of the cost potential factors on photovoltaic panels is realized and the expected cost potential of photovoltaic systems is examined considering numerous studies.