contact form
Do you have any questions or suggestions? Simply complete below form. We will reply in due course.

Something is wrong...
Something is wrong...
Something is wrong...
Something is wrong...
Something is wrong...
Something is wrong...
Please calculate 9 plus 5.

Fields marked with * are required.


SONNENSTROMFABRIK (CS Wismar GmbH), Europe’s cutting-edge leader in manufacturing high-quality photovoltaic modules, is becoming part of the group CENTROTEC Sustainable SE, based in Brilon, Germany.

Located at the heart of Amsterdam, the oldest horse-riding school in the Netherlands will be covered by transparent PV modules from Sonnenstromfabrik’s Brilliant module series.

Sales increased by 50 percent compared to the same period of previous year. Business in Germany, the Netherlands, France and Switzerland is growing particularly positively.

Sonnenstromfabrik and Provence Eco Energie installed a high-transparent photovoltaic sun protection structure for the Collège de la Nativité in Aix-en-Provence.

At the Svenska Solelmässan 2019 Dr. Bernhard Weilharter, Managing Director of Sonnenstromfabrik, pleaded at the end of October in Uppsala in front of an international trade audience for the reduction of CO2 emissions in the energy mix.

Our new high-power PV modules offer a good five percent better yield. The power output offered by the 60-cell PV modules has risen from 305 Wp to 320 Wp, or in some cases from 310 Wp to 325 Wp, thanks to a new design in combination with the familiar format.

In May, Sonnenstromfabrik presented its newly developed AC modules at Intersolar in Munich. The core of the AC module technology is an integrated micro inverter from Enphase.

We have extended our glass/glass in-roof module series by glass/foil modules with 60, 54 and 48 cells. With the three new PV module formats in glass/foil design, lower-priced photovoltaic modules are now available as entry-level models for integrated solar roof concepts.

Sonnenstromfabrik is a preferred supplier of the Dutch House Energy Optimum (HEO) system. HEO ( is a strategic alliance of A-brand suppliers of high-quality products and systems for insulation, shading, ventilation, heating, cooling and solar energy.