The manufacturing process for solar cells is fundamentally the same as for semiconductors and in many cases uses the same equipment. The solar cells themselves are essentially arrays of square Silicon wafers, as described within the semiconductor section. The properties of Quartz that are important for this industry are therefore exactly the same as for semiconductors: purity, temperature resistance, and relative inertness.

Quartz crucibles are also used to grow the Silicon ingots used in the solar industry.