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136 STAT. 1976 PUBLIC LAW 117–169—AUG. 16, 2022 ‘‘(ii) Photovoltaic cells. ‘‘(iii) Photovoltaic wafers. ‘‘(iv) Solar grade polysilicon. ‘‘(v) Torque tubes or structural fasteners. ‘‘(vi) Polymeric backsheets. ‘‘(B) ASSOCIATED DEFINITIONS.— ‘‘(i) PHOTOVOLTAIC CELL.—The term ‘photovoltaic cell’ means the smallest semiconductor element of a solar module which performs the immediate conversion of light into electricity. ‘‘(ii) PHOTOVOLTAIC WAFER.—The term ‘photo- voltaic wafer’ means a thin slice, sheet, or layer of semiconductor material of at least 240 square centi- meters— ‘‘(I) produced by a single manufacturer either— ‘‘(aa) directly from molten or evaporated solar grade polysilicon or deposition of solar grade thin film semiconductor photon absorber layer, or ‘‘(bb) through formation of an ingot from molten polysilicon and subsequent slicing, and ‘‘(II) which comprises the substrate or absorber layer of one or more photovoltaic cells. ‘‘(iii) POLYMERIC BACKSHEET.—The term ‘polymeric backsheet’ means a sheet on the back of a solar module which acts as an electric insulator and protects the inner components of such module from the surrounding environment. ‘‘(iv) SOLAR GRADE POLYSILICON.—The term ‘solar grade polysilicon’ means silicon which is— ‘‘(I) suitable for use in photovoltaic manufac- turing, and ‘‘(II) purified to a minimum purity of 99.999999 percent silicon by mass. ‘‘(v) SOLAR MODULE.—The term ‘solar module’ means the connection and lamination of photovoltaic cells into an environmentally protected final assembly which is— ‘‘(I) suitable to generate electricity when exposed to sunlight, and ‘‘(II) ready for installation without an addi- tional manufacturing process. ‘‘(vi) SOLAR TRACKER.—The term ‘solar tracker’ means a mechanical system that moves solar modules according to the position of the sun and to increase energy output. ‘‘(vii) SOLAR TRACKER COMPONENTS.— ‘‘(I) TORQUE TUBE.—The term ‘torque tube’ means a structural steel support element (including longitudinal purlins) which— ‘‘(aa) is part of a solar tracker, ‘‘(bb) is of any cross-sectional shape, ‘‘(cc) may be assembled from individually manufactured segments, ‘‘(dd) spans longitudinally between foundation posts, VerDate Sep 11 2014 15:35 Oct 25, 2022 Jkt 029139 PO 00169 Frm 00160 Fmt 6580 Sfmt 6581 E:\PUBLAW\PUBL169.117 PUBL169 jmbennett on LAP3P8D0R2PROD with Publaw