; (B) the required percentage for the first compliance period shall be the greater of— (i) the percentage of electricity generated that would qualify for issuance of clean electricity credits under subsection (d) in the year of enactment of this section; and (ii) the Secretary’s projection for 2030 under subparagraph (A); and (C) the required percentage shall be uniform for each retail electric supplier regulated under this section for any compliance period. (4) Early projection of required percentage to promote compliance planning Not later than two years after the date of enactment of this section, the Secretary shall make a projection of the required percentage for the first compliance period, extrapolating from the prior five years of electricity generation. (b) Compliance A retail electric supplier shall meet the requirements of subsection (a) for each compliance period by— (1) submitting to the Secretary a number of clean electricity credits equal to the product of the required percentage for the compliance period times the volume of electric energy the retail electric supplier sold to consumers during the compliance period; (2) paying an amount equal to the product of the alternative compliance payment, in the amount specified in subsection (h), times the number of clean electricity credits that would otherwise be due under paragraph (1) in the compliance period