Valentin Software is the largest, most comprehensive and oldest developer of solar PV and thermal design, simulation, modeling and financial analysis software. Headquartered in Berlin Germany, Valentin Software has customers in over 70 countries. Our tools have been used to design hundreds of thousands of PV and thermal systems, ranging from small residential systems to large utility-scale PV and district-wide solar thermal plants. Valentin Software Products: PV*SOL premium PV*SOL PV*SOL Online T*SOL GeoT*SOL