Valentin Software - 20 years of solar market success.

PV*SOL®, T*SOL® and GeoT*SOL® - Planning Software for Photovoltaic, Solar Thermal and Heat Pump Systems. With our programs for dynamic simulation, design, yield forecast and financial analysis we are world leader. Our software is used in over 100 countries. Our international reseller network is pleased to support you locally. Find out more...

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Our Online Calculators

With our simple online calculators we offer you a cost-free tool for supporting the arguments for the use and benefits of photovoltaic and solar thermal systems.

Smartphone users with Android OS can find PV*SOL app here: