Wattstunde black line

Innovative monocrystalline solar modules with shingle cell technology. Conventional solar modules use copper connectors to interconnect individual photovoltaic cells. These thin cell connectors are eliminated in the unique shingle cell solar modules: instead of individual cells, narrow cell strips are used.

Due to the innovative cell technology, no cell connectors are necessary anymore. The cells are interlocked like roof shingles: the end of one cell is simply connected to the beginning of the next cells with a special polymer-based adhesive that is conductive due to metallic particles. This creates a unique parallel structure that allows for an unobstructed flow of energy. This special design reduces internal losses and increases module performance.

Many modules on the market often face issues with local heat development. The so-called hotspots are a thing of the past with shingle cell technology. The parallel cell strip interconnection not only prevents hotspots but also mitigates shading problems. All these effects contribute to a longer lifespan of the module and extremely high reliability. Thanks to the integrated bypass diodes in the junction box, the module can continue to produce electricity even in shaded or low-light conditions.

Extreme weather conditions such as storms, hail, snow, saltwater, high humidity, or significant temperature fluctuations cannot harm WATTSTUNDE solar modules due to their robust construction. By using high-quality solar cells and materials, we offer a performance guarantee of 25 years for 80% of the performance, as well as a product warranty of 5 years on our solar modules.