Vela Solaris AG

- Online Calculator


The free solar calculator from Vela Solaris. Would you like to perform your system simulations on the internet? Polysun Online is the perfect start and a good support for selling photovoltaic, solar thermal and heat pump systems. You can also simulate hybrid systems combining all three technologies.

  • Easy and fast design of photovoltaic, solar thermal and heat pump systems
  • Calculation with accurate up-to-date weather data and extensive product databases
  • Support your sales with efficient and qualified offers and professional sales reports

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