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Whether it’s a new build or a renovation project – plan and compare different system variants to find the optimal solution in terms of your project goals, such as cost-effectiveness, self-consumption, degree of autonomy, and CO₂ savings.

Heat pump sizing

Simulate heating load and building demand to find the optimal heat pump configuration for efficiency and cost-effectiveness.

PV System Design

Design PV systems in 3D, size inverters and batteries, and calculate yields based on real weather data with Polysun.
energy districts can be simulated easily in Polysun

District energy

Efficient calculation of district energy systems Heat network simulation enables accurate design and sizing….
Pictogram District heating and cooling system

District Heating and Cooling Systems

Maximize Efficiency and Sustainability with Advanced Simulation Technology in District Heating and Cooling Systems

Solar Thermal Systems

Solar Thermal Systems The precise design and calculation of solar thermal systems are central…
How puffer thank can be sized precise in heating systems and cooling systems

Buffer Tank Sizing

Simulation allows engineers to tailor buffer vessels precisely to the actual heating demand and generation, helping prevent planning risks such as frequent start/stop cycling of heat pumps.

Hybrid Solar Panels Dimensioning

Optimising the design of a PVT system and combining it with heat pumps – find out what you need to consider during the design phase.

Cost heat pump system

Compare system variants in Polysun and find the most cost-effective and technically sound solution for your energy concept.

Geothermal energy heating

Plan and simulate ground source systems with Polysun – for precise sizing, optimized performance, and reliable project results.
waste water heat exchangers in Polysun

Waste Water Heat Recovery

Planning of wastewater heat exchangers and heat pumps for supplying heat networks, large buildings or commercial properties
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FAQ

What is POLYSUN?

Polysun is a powerful simulation and energy modeling software. It enables precise design and optimization of energy systems for buildings and districts.

Which technologies does Polysun support?

Polysun supports all common technologies, including photovoltaics, solar thermal systems, heat pumps, battery storage, and more. The software allows the simulation and combination of various components to meet heating, cooling, and electricity demands.

Can I test Polysun before purchasing?

Yes, Vela Solaris offers a free trial version of Polysun, which can be downloaded from the official website.

Are there training sessions for Polysun?

Yes, training sessions are available to help users learn how to use Polysun effectively. These trainings assist in reducing operating costs and presenting products more convincingly.

Where can I find support for questions or issues?

For assistance, you can visit the Polysun support section, which provides answers to frequently asked questions, the user manual, video tutorials, and other resources.