where:
RLi = Alternative contemporaneous annual emission limitation for unit i, lb/mmBtu, as specified in the averaging plan;
Rli = Applicable emission limitation for unit i, lb/mmBtu, as specified in § 76.5 , 76.6 , or 76.7 except that for early election units, which may be included in an averaging plan only on or after January 1, 2000, Rli shall equal the most stringent applicable emission limitation under § 76.5 or 76.7 ;
HIi = Annual heat input for unit i, mmBtu, as specified in the averaging plan;
n = Number of units in the averaging plan.
where:
Rai = Actual annual average emission rate for unit i, lb/mmBtu, as determined using the procedures in part 75 of this chapter. For units in an averaging plan utilizing a common stack pursuant to § 75.17(a)(2)(i)(B) of this chapter, use the same NOX emission rate value for each unit utilizing the common stack, and calculate this value in accordance with appendix F to part 75 of this chapter;
Rli = Applicable annual emission limitation for unit i lb/mmBtu, as specified in § 76.5 , 76.6 , or 76.7 , except that for early election units, which may be included in an averaging plan only on or after January 1, 2000, Rli shall equal the most stringent applicable emission limitation under § 76.5 or 76.7 ;
HIai = Actual annual heat input for unit i, mmBtu, as determined using the procedures in part 75 of this chapter;
n = Number of units in the averaging plan.
40 C.F.R. §76.11