First Solar panels questioned for safety reasons

Shares of First Solar [Tempe,Ariz.,] have bounced back and forth recently, due to a variety of different problems. Now it is facing a new challenge, in the form of the safety of their solar panels Barron's writes.

First Solar's panels use cadmium-tellurium technology while its competitors use silicon wafers. The company has done tests to show that cadmium, a highly toxic metal, is safely sealed in glass. First Solar also runs a voluntary program that will take back the panels at the end of their life span, about 30 years, according to a July 26 benzinga.com report.

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