| (3) |
| (a) | Subject to the other provisions of this Subsection (3), a taxpayer may claim a nonrefundable tax credit under this Subsection (3) with respect to a residential unit the taxpayer owns or uses if:
| (i) | the taxpayer:
| (A) | purchases and completes a residential energy system to supply all or part of the energy required for the residential unit; or |
| (B) | participates in the financing of a residential energy system to supply all or part of the energy required for the residential unit; and |
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| (ii) | the taxpayer obtains a written certification from the office in accordance with Subsection (8). |
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| (b) |
| (i) | Subject to Subsections (3)(b)(ii) through (iv) and, as applicable, Subsection (3)(c) or (d), the tax credit is equal to 25% of the reasonable costs of each residential energy system installed with respect to each residential unit the taxpayer owns or uses. |
| (ii) | A tax credit under this Subsection (3) may include installation costs. |
| (iii) | A taxpayer may claim a tax credit under this Subsection (3) for the taxable year in which the residential energy system is completed and placed in service. |
| (iv) | If the amount of a tax credit under this Subsection (3) exceeds a taxpayer's tax liability under this chapter for a taxable year, the taxpayer may carry forward the amount of the tax credit exceeding the liability for a period that does not exceed the next four taxable years. |
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| (c) | The total amount of tax credit a taxpayer may claim under this Subsection (3) for a residential energy system, other than a photovoltaic system, may not exceed $2,000 per residential unit. |
| (d) | The total amount of tax credit a taxpayer may claim under this Subsection (3) for a photovoltaic system may not exceed:
| (i) | for a system installed on or after January 1, 2018, but on or before December 31, 2020, $1,600; |
| (ii) | for a system installed on or after January 1, 2021, but on or before December 31, 2021, $1,200; |
| (iii) | for a system installed on or after January 1, 2022, but on or before December 31, 2022, $800; |
| (iv) | for a system installed on or after January 1, 2023, but on or before December 31, 2023, $400; and |
| (v) | for a system installed on or after January 1, 2024, $0. |
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| (e) | If a taxpayer sells a residential unit to another person before the taxpayer claims the tax credit under this Subsection (3):
| (i) | the taxpayer may assign the tax credit to the other person; and |
| (ii) |
| (A) | if the other person files a return under this chapter, the other person may claim the tax credit under this section as if the other person had met the requirements of this section to claim the tax credit; or |
| (B) | if the other person files a return under Chapter 10, Individual Income Tax Act, the other person may claim the tax credit under Section 59-10-1014 as if the other person had met the requirements of Section 59-10-1014 to claim the tax credit. |
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