Schott Solar Schott Poly 290
The Schott Poly 290 has a nominal output of 290 watts and has been on sale since 2008. It consists of 80 polycrystalline cells and is the only module in the tests that not only has a glass pane on the front, but also on the back. Schott Solar says the two panes protect the module especially well from the weather and points out that glass is impenetrable to water, water vapor, acids, ammonia, oils and solvents; the panel is also suitable for areas with great snow and wind loads. The module is reportedly very durable, making it basically interesting for all market segments from residential to commercial and ground-mounted. Although the module is relatively heavy compared to modules with a much lighter rear foil, the Poly 290 is also installed on roofs. The manufacturer says that 50 megawatts of this panel have already been sold; it is the successor to the ASE 260, of which more than 100 megawatts were produced. In July 2010, Schott introduced a linear performance guarantee of 82.5 percent of nominal output in 30 years. In May, Schott Solar is launching a smaller version of the panel, the Poly 185.
