1. Authors: David Pígl, Mervan Erdogan, Miroslav Sobotka, Matúš Ohrádka

2.  Czech has 3 big solar power stations  Germany has 24 stations  Slovakia has a couple of them

3.  Czech:44 farms  Germany:3440 farms  Slovakia: 3 farms

4.  Czech:5 power station  Germany:28 power station  Slovakia:8 power station

5.  Population in Germany: ca. 82 million  Slovakia:ca. 5 million  Czech:ca. 10 million Powerplants on one person  Germany4,26  Czech0,0000052  Slovakia0,0000022

6.  Wikipedia  acta technica corviniensis  Solarstar  Thewindpower  Seiph.eu

7.  Author: David Pígl, Mervan Erdogan, Miroslav Sobotka, Matúš Ohrádka Germany Czech Slovakia