Polysun 10.1 from Vela Solaris provides sales engineers with a tool to convince their clients of the solution that is best for them both energetically and economically. The following example makes it clear that the system that is most expensive to install will turn out to be the financially best over the years. While a pure PV system (yellow curve) pays an economic yield fastest when compared to a system without the use of solar energy, the combination of both PV and solar thermal (blue curve) is most cost-efficient in the long run. In hybrid systems like the one in the example, Polysun shows the strength of its modular design. No other software can combine different technologies with one another and compare them at a glance.
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