Fuel Hgannual is the mass amount of mercury contained in all fuels combusted during the compliance year
Fuel Hgi is the mercury mass content for fuel i, combusted in month m, during the compliance year determined in par. (a)
f is number of fuels combusted during the compliance month
NR 446.18(4)(4) Determining annual gross output. Owners and operators of a coal-fired EGU affected by this subchapter shall determine the annual gross energy output in gigawatt-hours, as required to demonstrate compliance, according to the following procedures: NR 446.18(4)(a)(a) Calculate the annual gross electric output in gigawatt-hours, according to Equation 4, as the sum of gross electric output measured in megawatt-hours for each hour the EGU is operating. where:
EGWh is the total annual gross electric output in GWh
MWhi is the gross electric output in MWh for each hour i the EGU operated during the compliance year
1,000 is the factor to convert MWh to GWh
n is the number of hours the EGU operated during the compliance year
NR 446.18(4)(b)(b) Calculate the annual amount of useful thermal energy in mmBtu, according to Equation 5, as the sum of the process thermal energy input for each hour the EGU is operated multiplied by the process energy efficiency. where:
UTEannual is the annual amount of thermal energy, in mmBtu, utilized in the cogeneration process
PTEIi is the amount of thermal energy input, in mmBtu, made available to the cogeneration process for each hour i the EGU operated during the compliance year
PEE is the process energy efficiency, expressed as a percent, measured for the EGU. A value of 50% may be assumed.
n is the number of hours the unit operated during the year of compliance
NR 446.18(4)(c)(c) Calculate the annual gross energy output in mmBtu, according to Equation 6, as the sum of the annual gross electric output and the annual applied thermal energy converted to electric output. where:
GEOGWh is the total annual gross energy output in GWh
EGWh is the total annual gross electric output in GWh determined in par. (a)
UTEannual is the total annual useful thermal energy in mmBtu determined in par. (b)
3,413 is the factor to convert thermal energy in mmBtu to GWh
NR 446.18(5)(5) Determining annual allowable emissions. Except as provided in s. NR 446.185, owners and operators of a coal-fired EGU affected by this subchapter shall determine annual allowable emissions, as required to demonstrate compliance, according to the following procedures: NR 446.18(5)(a)(a) When achieving compliance on a unit-by-unit basis, use one of the following equations as applicable: