1. Data of the World Nuclear Association: http://www.world-nuclear.org.
2. Data of the US Department of Energy statistical data. Available at: http://www.eia.doe.gov.
3. Toward Cost-Effective Solar Energy Use
4. Read, for instance, the report by R. Oliver, All About: CSP (March 17, 2008), at http://edition.cnn.com/2007/WORLD/asiapcf/11/12/eco.about.csp/index.html#cnnSTCText.
5. Complete solar industry statistics can be found in data available at: http://www.solarbuzz.com.