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SolarWorld gives industry´s most comprehensive performance guarantee - Company underlines quality leadership


With its new performance guarantee for solar power modules SolarWorld AG again underlines the reliability and quality of its products. As the first company in the industry SolarWorld AG gives a linear performance guarantee for 25 years on all solar power modules installed as of 2010. With this groundbreaking innovation SolarWorld provides clearly better security for the investments of its customers into their solar power plants.

“We have deliberately invested for years in our Research & Development capacities so as to be able to consistently optimize our products“, Dipl.-Ing. Frank H. Asbeck, Chairman and CEO of SolarWorld AG, characterizes the strategy of the company. “We know what our products can do and pass on this security to our customers by way of our linear performance guarantee.” In this context the group has extended the warranty for its modules from two to five years.

The quality modules of SolarWorld, test winners in the current long-term test by the trade magazine Photon, are up to considerable strains and stresses. For example in agriculture where the solar power modules on sheds and stables are often exposed to ammonia emissions. All materials used, especially the backing film, cables, plugs and silicones have proven their ammonia resistance in an ageing test by the Swiss test institute SGS. With the SGS certificate SolarWorld AG has supplemented the already existing quality hallmarks for its modules like for example TÜV, VDE and UL.

Linear Performance Guarantee

The usual market guarantees give the customer a staggered performance promise, for example 90 per cent of the lower nominal output for the first ten years and then 80 per cent from year eleven onwards. The new linear performance guarantee by SolarWorld says that the actual performance of the solar power module in the first year of operation amounts to at least 97 per cent of the nominal output and from the second year of operation does not decline by more than 0.7 per cent of the nominal output. Thus, after 25 years of operation the solar power module still has an actual performance of at least 80.2 per cent of the nominal output. The performance guarantee depends on the service certificate valid at the time of purchase.

About SolarWorld AG

The SolarWorld AG Group (ISIN: DE0005108401) is a worldwide leader in offering brand-name high quality, crystalline solar power technology. Its strength is its fully integrated solar production. From silicon as the raw material via wafers, cells and modules all the way to turn-key solar systems including recycling the group combines all the stages of the solar value chain. The central business activity is selling quality modules to the specialist trade and crystalline wafers to the international solar cell industry. Group headquarters are located in Bonn/Germany. Production sites are to be found in Germany, the USA and South Korea. The largest production facilities are operated by the group in Freiberg/Germany and in Hillsboro/USA. Worldwide, SolarWorld employs more than 2,700 people. Sustainability is the basis of the group strategy. Since 1999 SolarWorld AG has been quoted on the stock exchange, among others in the technology index TecDAX, ÖkoDAX, Dow Jones STOXX 600, the international MSCI Index as well as in the sustainability indices DAXglobal Alternative Energy and NAI.

Contact SolarWorld AG

Contact Press: Phone: +49 228/55920-400,
Contact Investor Relations: Phone: +49 228/55920-470,
Fax: 0228/55920-9470

  • SolarWorld leads the way

    By means of the SolarWorld Einstein Award.


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    SolarWorld brochures available for download as PDF documents

    Locations Worldwide

    Present in all important markets.

  • Guaranteed performance

    SolarWorld offers 25-year linear performance guarantee.


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    Commitment to sustainability

    SolarWorld combines economic success with social responsibility and signed up to the Global Compact.