Elkem Solar Fiskaa

Elkemfiskaa flyfoto

Elkem Solar has developed an energy efficient metallurgical process for producing high-purity silicon for the solar industry. Elkem Solar Silicon® (ESS®) is produced at Fiskaa in Kristiansand.

The plant has an annual capacity of 6,000 tonnes. The process consists of five well-known metallurgical operations, such as reduction smelting, slag treatment, hydrometallurgical leaching and directional solidification.

The production of ESS® requires approximately 25 percent of the energy consumed in traditional solar silicon production (Siemens). The process has the lowest CO2 footprint of all production technologies for solar silicon.