SolarMan

The Siemens ST20 solar (photovoltaic) module uses Siemens Solar´s industry-leading Copper Indium Diselenide (CIS) thin-film technology to efficiently create electricity from sunlight.

Siemens Solar has established very high quality standards and as a result our main production plants are certified to ISO 9001. Constant checks and inspections guarantee uniform high quality. Every module that leaves the production line is subject to thorough visual inspections as well as mechanical and electrical tests.

33 PowerMax® solar cells form the heart of the module. These cells make optimum use of the module surface area. Thanks to their square shape, they are highly efficient and still provide the maximum power possible even under low light level conditions. The specially hardened front glass has excellent light transmitting properties and protects the module against most adverse environmental conditions such as hail or ice. The solar cells are laminated in EVA (ethylene-vinyl acetate) between a multilayer rear film and the front glass.