Solarcenter Allgaeu and it`s brandmark WIOSUN® Your competent partner with experience

With over 30 years of experience and awarded with the national prize in 2008 and 2012 for outstanding innovative achievement for the trade, we are your specialist for manufacturing, sales, planning, maintenance and installation of photovoltaic and combined systems.


Our Brand WIOSUN® was founded in 2009 by Willi Bihler, a solar technology pioneer entrepreneur (Solarzentrum Allgäu KG) and inventor.
Other than providing high-quality and innovative products, there is nothing more important to us than serving our customers!

We are the right partner for you because we ....

+ Live service
+ are only satisfied when you are satisfied
+ use only high-quality materials
+ offer individual concepts for a fair price
+ have over 5000 satisfied customers since 1984
+ work flexible, reliable and clean
+ have the inventor in-house
+ offer a high degree of creativity
+ are a selected location in the "Land of Ideas"
+ are in use worldwide

More about the team

Our Philosophy

We are a dynamic and innovative family company having more than 25 years of experience. Our philosophy is to live and work with awareness and sustainability for our environment, i.e. for all of us. In our company, we enjoy having fun, we are all about people and we are happy if thanks to targeted perfectionism everything works at the right time at the correct speed.

We develop, test and produce high-quality, future-oriented energy systems »MADE in Allgäu«.

Due to our broad range of solutions, we allow our customers to independently provide for their own energy supply and to save money. And in addition, you make your contribution to a clean environment and secure the future for the generations to come.