solar grade polysilicon
Defined in 1 place of the United States Code.
The term "solar grade polysilicon" means silicon which is—
(I) suitable for use in photovoltaic manufacturing, and
(II) purified to a minimum purity of 99.999999 percent silicon by mass.
Source
- 2022–present26 U.S.C. § 45XInternal Revenue Code · Advanced manufacturing production credit · for purposes of this section