35 Ill. Adm. Code 217.762
Methodology for Calculating NOx Allocations for Budget Electrical Generating Units (EGUs)
Section 217
Section 217.762 Methodology
for Calculating NO
x
Allocations for Budget Electrical Generating
Units (EGUs)
The methodology for calculating
the allowances to be allocated to budget EGUs is based on the following
emission rates and heat inputs:
a) The applicable NO
x
emission rates are as follows:
1) For budget EGUs listed in Appendix F: 0.15 lb/mmbtu.
2) For budget EGUs not listed in Appendix F: The more stringent
of 0.15 lb/mmbtu or the permitted NO
x
emission rate but not less
than 0.055 lb/mmbtu.
b) Heat input (HI) (in mmbtu/control period) is determined as
follows:
1) The budget EGU's two highest heat inputs from the control
periods four to six years prior to the year for which the allocation is being
made are averaged. However, for a budget EGU that did not commence commercial
operation at least six years prior to the control period for which the allocation
is being made, the heat inputs for the following control periods shall be used:
A) If the budget EGU has heat input for the control period four
years prior to the year for which the NO
x
allocation is being made,
but not for the control periods five and six years prior, the heat input for
that control period four years prior shall be used; or
B) If the budget EGU has heat inputs for the control periods four
and five years prior to the year for which the NO
x
allocation is being
made, but not for the control period six years prior, the heat input for the
control periods four and five years prior shall be averaged.
2) The budget EGU's heat input in subsection (b)(1) of this
Section for the control period in each year will be determined in accordance
with:
A) 40 CFR 75, as incorporated by reference in Section 217.104 of
this Part, if the budget EGU was otherwise subject to its requirements for the
year; or
B) The best available data reported to the Agency for the budget
EGU if the budget EGU was not subject to the requirements of 40 CFR 75, for the
year.
c) The general equation for determining allowances is:
A
=
HI
x ER
2000
Where:
HI
=
heat input (in mmbtu/control
period) as determined in Section 217.762(b) of this Part.
ER
=
The NO
x
emission
rate in lbs/mmbtu as determined in Section 217.762(a) of this Part.
A
=
allowances of NO
x
/control
period.