We light up your future

MODULES BUILT FOR ETERNITY - Made in Germany

Who we are

Sonnenstromfabrik is the cutting-edge quality leader for solar modules in made in Germany. Since 25 years, the module production plant of Sonnenstromfabrik has established itself as quality leader. Key performance indicators from the past 25 years underline this impressively:

Uptime: > 90 %
In-time delivery: 99.5 %
Claim rate: 0.02%

What makes us different

We thrive for excellence. The specific strength of Sonnenstromfabrik is its module series Excellent Glass/Glass - these modules benefit from significant longer product lifetime compared to conventional solar modules.

The Sonnenstromfabrik solar module plant has been audited for minimum CO2 emissions. Products of the "Low Carbon" series save up to 200% CO2 in production compared to market standard.

With the "Brilliant" series Sonnenstromfabrik has created solar modules for building integration on roofs and facades. These modules combine highest efficiency, design and controlled light transmission.

The exceptionally long-life
Excellent Glass/Glass modules

  • Operating life 40 years
    (compared with 25-30 years for glass-foil modules)
  • Electricity production costs (LCOE) approx. 20% lower as a result
  • Higher stability means fewer micro cracks in the solar cells
  • Greater protection against mechanical loads and fire
  • Outstanding ageing resistance
  • Resistant to saltwater and ammonia
  • New design scope from inherent strength even without a frame (e.g. smooth surfaces)
  • Anti-reflective glass for maximum light transmission
  • Weight of 22.0 kg almost equal to glass-foil module
    (thanks to use of hardened thin glasses)

FACTORY FOR PREMIUM PHOTOVOLTAICS MODULES

What we do

Broad product portfolio thanks to intelligent production footprint
Sonnenstromfabrik produces both its own products under its own brand name but also third-party modules, which it makes on behalf of other solar manufacturers. Our product range comprises framed and frameless glass/glass modules, framed standard modules of glass-foil design and special modules such as off-grid modules and roof-integrated modules.

Our product data sheets (download)

Highest efficiency in module production

Our production equipment is cutting edge.
Sonnenstromfabrik employs fully automated and high performance production facilities. For the glass/glass and special modules, Sonnenstromfabrik’s team of developers created special machining solutions to assure consistently high quality and process reliability. The entire production process is comprehensively monitored. The raw materials, components and modules are put through extensive tests.

Sustainability in module production

Carbon balance certified by Certisolis
Sustainability in the production of modules is a central aspiration of Sonnenstromfabrik. As one of the first companies we have optimized our carbon footprint. Our extraordinary low carbon footprint is also certified by Certisolis. Products of Sonnenstromfabrik convince by a carbon footprint significantly below values of its competitors.

Extensive quality testing:

Sonnenstromfabrik operates an inhouse laboratory

  • Mechanical load
  • Resistance of encapsulants
  • Resistance of glass
  • Climate change
  • Degradation
  • Stability of cell layers
  • Micro cracks
  • Soldered connections

Where we come from

Production plant in Wismar
The plant’s origins go back around 25 years. Centrosolar Group AG took over the plant in 2006. New buildings went up at the present location in 2008 and 2011. The plant has since been modernized several times. In 2016, CS Wismar GmbH took over the operations with a team1 from the former Centrosolar. Centrosolar itself has focused its activities entirely on North America and still sources Centrosolar modules for the US market from Sonnenstromfabrik.

LONG-LIFE SOLAR MODULES WITH ADDITIONAL YIELD

STANDARD- and SPECIAL MODULES

We secure your investment

Industry standard Excellent Glass/Glass Excellent
Product guarantee max. 10 years 20 years 12 years
Optional extension
of product guarantee
no yes, optional 30 years yes, optional 25 years
Performance guarantee in steps linear linear
Performance guarantee after 1 year no 97% 97%
Performance guarantee max. 20 years 30 years, 87% 26 years, 80%
Annual max degradation
after year 2
n/a 0.35% 0.68%
Total Care protection no yes, optional yes, optional

CUTTING EDGE PRODUCTION EQUIPMENT

THE EXPERIENCED MANAGEMENT TEAM
OF CS Wismar GmbH SONNENSTROM­FABRIK

Rüdiger Drewes

Rüdiger Drewes (born 1984) has been Head of Sonnenstromfabrik since 2008 and is managing director of CS Wismar GmbH. Prior to joining Sonnenstromfabrik, he was in charge of production and development at a DVD manufacturer.

Dr. Bernhard Weilharter

Dr Bernhard Weilharter is managing director of CS Wismar GmbH, responsible for strategy, sales and finance. He previously held senior management positions at a leading automotive manufacturer and a firm of management consultants.

HIGH QUALITY GLASS/GLASS MODULES

Contact

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Sonnenstromfabrik Hotline
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+49 (0)3841-3049-0
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