Section 11-13G-5 - Application of credit(a) Any unused portion of a credit allowed under this article may be taken as a credit against corporation net income taxes due for the taxable year as provided in section eleven-a, article twenty-four of this chapter.(b) If any portion of the amount certified as the eligible taxpayer's revenue deficiency by the public service commission is not recovered under subsection (a) hereof, the unrecovered amount may be carried over to the subsequent year as a tax credit as allowed by section three of this article and shall be applied as a credit before any other credits for that year are applied.(c) In no event shall an eligible taxpayer be allowed to recover more than one hundred percent of its certified revenue deficiency.