1. International Energy Agency, IEA Statistics: Renewables Information, OECD/IEA, 2014
2. U.S. Energy Information Administration, International Energy Statistics: Renewables Electricity Generation, http://www.eia.gov/countries/data.cfm
3. M.
Fischedik
, R.Schaeffer, A.Adedoyin, M.Akai, T.Bruckner, L.Clarke, V.Krey, I.Savolainen, S.Teske, D.Urge-Vorsatz and R.Wright, in IPCC Special Report on Renewable Energy Sources and Climate Change Mitigation, ed. O. Edenhofer, R. Pichs-Madruga, Y. Sokona, K. Seyboth, P. Matschoss, S. Kadner, T. Zwickel, P. Eickemer, G. Hansen, S. Schlomer and C. von Stechow, Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 2011, pp. 791–864
4. R.
Wiser
and M.Bolinger, 2011 Wind Technologies Market Report, U.S. Department of Energy, 2012
5. International Energy Agency, World Energy Outlook 2013, 2013