Software to design and implement efficient, innovative and comprehensive energy concepts: a sustainable push towards a better environment of tomorrow!

Design photovoltaic projects

Designing software meant for the efficient and comprehensive planning of photovoltaic installations with an immediate yield forecast.

Energy consulting and sales

Looking for a simple to use and quick software for system design and sales? Look no further. We have the ideal solution for quick system designs in early planning stages.

Education and training

We also have software for students and lecturers in store. We support the education of the coming generation, because we want to profit from sustainable energy concepts in the future as well.

Polysun Designer

We know that every project is different. Which is why we provide a software solution with maximum flexibility when it comes to designing comprehensive energy concepts. It makes a modular design of installations possible, with the use of solar thermal energy, photovoltaics, heat pumps, co-generation units, e-mobility and combined installations.

CHF 4'899.00 excl. 7,7% VAT Add to cart

Polysun PV

Use Polysun PV for comprehensive and acknowledged yield forecasts, system comparison and detailed evaluation possibilities, including the calculation of self-consumption, battery and e-mobility.

CHF 1'299.00 excl. 7,7% VAT Add to cart

Polysun Standard

We offer this inexpensive software for the quick design of energy installations, with more than 1,000 templates at your fingertips. Simple planning of photovoltaics, solar thermal energy, heat pumps, co-generation units and combined installations.

CHF 2'699.00 excl. 7,7% VAT Add to cart

Our consulting services

If you design or analyze any given energy system, we can offer our consulting services to you using our Polysun software. We can give both technical and methodical advice in all phases of your project and both in direct co-operation with you as well as single-handedly should you not avail of the resources at the time.


To give you a head start when using our software products, a basic training webinar is offered free of charge, as are courses of different levels. Our courses are designed in a modular structure and are given by our knowledgeable staff both online and offline at changing locations.


Within the framework of your service subscription you will get our support through a wide range of channels when using Polysun.

Our values


We feel responsible for doing our bit for a clean future. Our software products facilitate the design and implementation of efficient, innovative and comprehensive energy systems. Together, we create the next steps leading to a future of sustainable energy.


We co-operate closely with universities and manufacturers. Together with our partners, we constantly work on the further improvement of our software solutions and update them several times a year. We work hard for good software – starting before the first line of code and until after the last one.


We don’t just work in the „sustainable business“. In our day-to-day-lives, we strive to use the resources available to us in a sustainable way as well. We prefer using public transport or non-motorized traffic for our transportation needs. Our electricity comes from renewable sources. Our brochures and business cards are printed without water and without chemicals or volatile organic compounds.