Solbian SXp Polycrystalline Series

The polycrystalline solar cells used in the SXp series are electrically connected using ultra-thin copper wires that form a very fine mesh on the cell surface, resulting in thousands of contact connected points.

This alternative to the standard bus-bar method allows a higher module power and increases the energy yield.

This technology is optimally suited to flexible modules, due to its intrinsic insensitivity to micro-cracks, that are the most common cause of energy loss in solar modules.

Another advantage is a reduced sensitiveness to shading, a quite important issue in marine and mobility applications. The new connection technology, together with the use of high efficiency polycrystalline silicon cells, makes SXp panels especially powerful and reliable.

5 year worldwide manufacturer's warranty


Sizes and speecifications:



  • High resistance to mechanical stresses thanks to the thin wires thick mesh on the cell surface
  • Flexible and lightweight (2.2 kg/m2)
  • Completely waterproof and resistant to salt water
  • Thin (less than 2 mm)
  • IEC 61215 and IEC 61730 certified
  • 5 year warranty against manufacturing defects
  • Integrated bypass diodes to minimise output losses associated with partial shading
  • Available with different front sheets, many fixing and electrical wiring options
  • White, black or transparent back sheet
  • Adaptable to any battery: from 5 to 48 volt, lead-acid or lithium
  • Designed and manufactured in Italy


Solbian SXp series with Day4 Energy cells      

Day4 Energy’s laminated cell with patented Stay-powerful™ Technology, uniquely interconnects solar electric cells and collects the power they generate.
This innovation is a direct replacement of the conventional, high temperature solar cell soldering process. Cells are connected using a matrix of electrically-efficient copper wires coated with a custom, low melting point alloy. This technology guarantees high efficiency in low light conditions and wires act as a “bridge” across any interruption: if a microcrack occurs, the electron flow continues.


Solbian SXP electrical characteristics and certifications