[3] N. Hoshangi, A.A. Allesheikh, H. Helali, Regional Assessment of Solar Radition Potentioal by Evaluation and Optimization of interpolation Methods in Iran, Journal of regional planning, 2015 , Volume 4 , Number 16
[4] Renewable energy sector in the EU: its Employment and Export Potential, A Final Report to DG Environment, ECOTEC Research & Consulting Limited, United Kingdom, 2002
[5] IRENA, REmap 2030: A Renewable Energy Roadmap, June 2014. IRENA, Abu Dhabi. www.irena.org/remap
[6] T. Grigoleit and, D. Lenkeit, The Renewable Energy Industry in Germany A glance at industry promotion policies in selected energy sectors, 2012
[7] B. Burger, Power Generation from Renewable Energy in Germany – Assessment of 2015, FRAUNHOFER institute for solar energy system ISE, 2016.
[8] I. Aigner, S. Gabriel, National Biomass Action Plan for Germany, Biomass and Sustainable Energy Supply,2009.
[9] Rose, A. China's solar capacity overtakes Germany in 2015, industry data show. Reuters, 2016
[10] Timperley, J. Chinese solar capacity outshone Germany's in 2015, Businessgreen, 2016 [http://www.businessgreen.com]
[11] Walker L., US Replaces China as Top Clean Energy Investor, Environmental Leader, 2012.
[12] J. A. Mathews and H. Tan, Economics: Manufacture renewables to build energy security, Nature, 2014
[13] C. Davis., Size key to success in solar panel sector,. New York (China Daily), 2013
[14] DavorH, China – hydropower as the right solution [http://www.our-energy.com/china_hydropower_as_the _right _solution.html], 2015
[15] Independent Statistics & Analysis, Table 1.14.A, www.eia.gov, U.S. Department of Energy Washington, DC 20585, March 2016
[16]S. Mufson, polar power project in Mojave Desert, Washington Post Staff Writer, 2010
[17] Independent Statistics & Analysis, Table 1.10.B, www.eia.gov, U.S. Department of Energy Washington, DC 20585, May 2016
[18] Renewable Energy Sources—hydropower, biomass, ethanol, biodiesel, wind, geothermal, and solar, 2014 [http://www.eia.gov/energyexplained]
[19] G. Bredehoeft, The Outlook for Renewable Electricity in the United States For 2014 EIA Energy Conference, Washington, DC, July 2014
[21] Skelton, C. Geothermal energy could meet half of B.C.'s electricity needs, researcher says, The Vancouver Sun.
[22] Obermann, E and Kutney T, OES Annual Report, CANADA, Ocean energy policy, 2014
[23] Oil & Gas Journal, Worldwide Look at Reserves and Production, p. 32, 2014
[24] Norway Energy Policy, Laws and Regulations Handbook Volume 1, strategic information and basic laws, IBP, Inc. - Business & Economics- 308 pages - 2015
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