Antimony addition amount for solar glass

4 FAQs about [Antimony addition amount for solar glass]

Does solar glass contain antimony?

However, the composition of solar glass varies, especially concerning antimony (Sb) content, depending on the production method. Antimony is used to enhance the performance of patterned solar glass but introduces environmental and health concerns, complicating recycling efforts.

Why is antimony a problem for solar glass recycling?

Currently, the import of modules from outside the EU with variable antimony content drastically complicated recycling efforts of solar glass. Indeed, antimony poses environmental and health risks and can lead to undesirable interactions with the manufacturing process. To address this issue, ESIA members are calling for:

How can the US reduce antimony levels in solar glass?

The U.S. could also implement a threshold for antimony levels in solar glass, gradually reducing the allowable amount over time. This would encourage manufacturers to phase out the use of antimony in their production processes and facilitate more straightforward recycling in U.S. facilities.

Should PV module manufacturers be required to disclose antimony compounds?

To address these challenges, the ESIA Recommendation paper suggests that the European Union should consider mandating PV module manufacturers under the upcoming Ecodesign regulations to disclose the composition and manufacturing process of solar glass, including additives like antimony compounds.

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