40 C.F.R. § 76.13

Current through October 31, 2024

Section 76.13 - Compliance and excess emissions

Excess emissions of nitrogen oxides under § 77.6 of this chapter shall be calculated as follows:

(a) For a unit that is not in an approved averaging plan:

(1) Calculate EE_i for each portion of the calendar year that the unit is subject to a different NO_X emission limitation:

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where:

EE_i = Excess emissions for NO_X for the portion of the calendar year (in tons);

R_ai = Actual average emission rate for the unit (in lb/mmBtu), determined according to part 75 of this chapter for the portion of the calendar year for which the applicable emission limitation R_l is in effect;

R_li = Applicable emission limitation for the unit, (in lb/mmBtu), as specified in § 76.5 , 76.6 , or 76.7 or as determined under § 76.10 ;

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HIⁱ = Actual heat input for the unit, (in mmBtu), determined according to part 75 of this chapter for the portion of the calendar year for which the applicable emission limitation, R_l, is in effect.

(2) If EE_i is a negative number for any portion of the calendar year, the EE value for that portion of the calendar year shall be equal to zero (e.g., if EE_i = -100, then EE_i = 0).

(3) Sum all EE_i values for the calendar year:

where:

EE = Excess emissions for NO_X for the year (in tons);

n = The number of time periods during which a unit is subject to different emission limitations; and

(b) For units participating in an approved averaging plan, when all the requirements under § 76.11(d)(1) are not met,

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where:

EE = Excess emissions for NO_X for the year (in tons);

R_ai = Actual annual average emission rate for NO_X for unit i, (in lb/mmBtu), determined according to part 75 of this chapter;

R_li = Applicable emission limitation for unit i, (in lb/mmBtu), as specified in § 76.5 , 76.6 , or 76.7 ;

HI_i = Actual annual heat input for unit i, mmBtu, determined according to part 75 of this chapter;

n = Number of units in the averaging plan.

40 C.F.R. §76.13