[1] R. S. Pindyck, The structure of world energy demand, The MIT Press, Cambridge, Massachusetts, 1997.
[2] IRENA (2015), Renewable Power Generation Costs in 2014, www.irena.org.
[3] Global Trends In Renewable Energy Investment .(2015), http://www.fsunep-centre.org (Frankfurt am Main).
[4] Global renewable energy country attractiveness and resource map
(2013), Global renewable energy country attractiveness and resource map.
ey.com/cleantech.
[13] A. Kulsum , Renewable Energy Thechnologies, Word bank Technical Paper, No. 240, pp. 201-234. 1994.
[14] J.B. Lesourd, Solar Photovoltaic Systems: the Economics of Renewable Energy Resource, Environomental Modeling & Software, No. 16, PP. 147156, 2001.
[15] G. Notton, M. Muselli and P. Poggi, Costing of a Stand-alone Photovoltaic System, Energy, Vol. 23, No. 4, PP. 289-308, 1998.
[17] B. Chandrasekar, C. Tara and C. Kandpal, An Opinion Survey Based Assessment of Renewable Energy Technology Development in India, Renewable and Sustainable Energy Reviews, (11): 688-701, 2010.
[18] P. K. Koner , V. Dutta and K.L. Chopra, A Comparative Life Cycle Energy Cost Analysis of Photovoltaic and Fuel Genarator for Load Shedding Application, Solar Energy Materials and Solar Cells Journal, (60): 309322, .0002
[21] http://www.retscreen.net/fa/what_is_retscreen.php.
[22] Photovoltaics & Distributed Generation "; www.fsec.ucf.edu;2002
[23] " Solar Energy for You " ; www.mysolar.com;2002.
[24] Antonio Luque., Steven Hegedus. Handbook of Photovoltaic Science and Engineering, 2003.
[28]ENERCON Wind energy converters Product overview, Technical information is subject to change. Version: July 2010.
[29] A. L. R. M.L. Ray and J.G. McGowan, Analysis of wind shear models and trends in different terrains, presented at the AWEA Windpower, Conference, Pittsburgh, PA, June, 2006.
[30] R. Wiser and M. Bolinger, 2012 Wind Technologies Market Report, Lawrence Berkeley National Laboratory, Berkeley, CA, 2013.