1. Brazil global horizontal irradiation. Yearly sum of global horizontal irradiation, average 1999–2011;SolarGIS,2013
2. Germany global horizontal irradiation. Yearly sum of global horizontal irradiation, average 4/2004–3/2010;SolarGIS,2013
3. iMaps. Solar data;SolarGIS,2013
4. Atlas brasileiro de energia solar;Pereira,2006
5. Weather data sources. EnergyPlus energy simulation software;SWERA,2012