OUR GOALS

Profpanel LLC with the trademark Solaron intends to become the first Armenian company of mass production of photovoltaic solar panels. In this project, we have established long-term partnerships with organizations and with research centers in the EU and in China

 

In general, we believe that implementation of this program can contribute to the energy independence of Armenia and will give a good impetus to the involvement of the country’s scientific staff in the rapidly developing field of science – photovoltaic.

The stages of production of  cell-based PV modules

Photovoltaic cells (solar cells) are the basis for production of photovoltaic modules. The production of cell process begins with the production of high-quality silicon out of sand. For use in photovoltaic modules, silicon purity should be> 5N (99.999%) – this is the so-called “Solar silicon”. This process is very energy intensive, and for every ton of pure silicon is four tons of waste. Further, in the next step silicon bar is made of the silicon raw material. In the case of single-crystal silicon it is cultivated from the seed material and purified by periodic melting and subsequent crystallization (Czochralski’s method). In the case of polycrystalline bar, molten silicon is poured into a rectangular mold and solidifies. Thus, the polycrystalline silicon bar consists of individual disordered single-crystals. In both cases, a small amount of boron atoms are added in the bars, that gives the silicon features of p-type semiconductor. Subsequently, the bars are cut into plates, called “wafers» (wafers).

And from the “wafers”hotovoltaic (or solar) cells (solar cell) are produced by implementation of a certain amount of phosphorus atoms at high temperature to form a p-n transition and metallization (implementation of current-deducing silver contacts). Solar cells are produced on automated production lines, tested, sorted and packed according to their current-voltage characteristics. Finally, at the last stage photovoltaic panels are assembled out of ready-made cells (this step is grayed out in the draft). Exactly this production process is essential for us. In the first stage we will carry on the assembly of the modules on semi-automatic production line, which can easily be upgraded to a fully automatic line. Line productivity of 6 MW panels per year (24,000 panels of 250 watts), while working in one shift. In the production of modules, we are going to use only proven monocrystalline and polycrystalline cells of A class (Grade – A).