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About us


The winsun-team consists of engineers,planners and trained technicians, who have the required expertise that is needed for consulting, investment planning, project planning and implementation.



In a first personal conversation we strive to meet your expectations and wishes for a PV-system, we examine the location according to his aptitude, feasibility, such as the economy and we advise you in detail about the different possibilities.


Offer / Clarification

Provided the location is suitable, we offer you a PV-system in the desired size and we calculate the estimated annual output of the PV-system.Moreover we clarify the conditions with the Building Department, the feed-in tariff and the connection authorization from the network operator.



We submit the requests for the feed-in tariff, the building permit, the connection permit to the competent EW and any possible funding contributions.



In consultation with our partner Würth Solar, which have huge experience in the area of roof treatment, Our qualified electrical fitter team carrys out the assembly. The system is connected to the grid in cooperation with Eberhardt Elektro to the grid.


Commissioning and removal

After the installation and the start up is complete, we organize the removal and the control by the network operator.

Our partners:

Your contact:

Phone  +41 (0)27 934 32 54