RSI Silicon Products LLC, an energy materials company and provider of solar-grade silicon, says it has developed a new, low-cost way to produce solar-grade silicon that uses renewable feedstock.
According to RSI Silicon, the proprietary source of carbon and processes that the company uses in the new process mean that the capital investment it requires is only one-tenth as costly as the industry-standard Siemens method. The new process includes removing boron and phosphorous to reach high levels of silicon purity, notes company founder Steve Amendola.
RSI Silicon recently raised additional capital to activate an existing 1,000-ton-capacity furnace in Easton, Penn., where it will start producing 500 metric tons of solar-grade silicon in the second half of this year. The company plans to refine an additional 500 tons in the first half of 2012.
SOURCE: RSI Silicon