2Any fuel containing less than 25%, by weight, lignite is not prorated but its percentage is added to the percentage of the predominant fuel.
NR 440.20(5)(b)(b) The emission limitations under par. (a) do not apply to any affected facility which is combusting coal-derived liquid fuel and is operating under a commercial demonstration permit issued by the administrator in accordance with the provisions of 40 CFR 60.47Da. NR 440.20(5)(c)(c) Except as provided under par. (d),when 2 or more fuels are combusted simultaneously, the applicable standard is determined by proration using the following formula: En = [86 w + 130 x + 210 y + 260 z + 340 v] /100
where:
En is the applicable standard for nitrogen oxides when multiple fuels are combusted simultaneously (ng/J heat input)
w is the percentage of total heat input derived from the combustion of fuels subject to the 86 ng/J heat input standard
x is the percentage of total heat input derived from the combustion of fuels subject to the 130 ng/J heat input standard
y is the percentage of total heat input derived from the combustion of fuels subject to the 210 ng/J heat input standard
z is the percentage of total heat input derived from the combustion of fuels subject to the 260 ng/J heat input standard
v is the percentage of total heat input delivered from the combustion of fuels subject to the 340 ng/J heat input standard
NR 440.20(5)(d)1.1. On and after the date on which the initial performance test required to be conducted under s. NR 440.08 is completed, no new source owner or operator subject to the provisions of this section may cause to be discharged into the atmosphere from any affected facility for which construction commenced after July 9, 1997 any gases which contain nitrogen oxides, expressed as NO2, in excess of 200 nanograms per joule (1.6 pounds per megawatt-hour) gross energy output, based on a 30-day rolling average, except as provided under sub. (6) (k) 1. NR 440.20(5)(d)2.2. On and after the date on which the initial performance test required to be conducted under s. NR 440.08 is completed, no existing source owner or operator subject to the provisions of this section may cause to be discharged into the atmosphere from any affected facility for which construction commenced after July 9, 1997 any gases which contain nitrogen oxides, expressed as NO2, in excess of 65 nanograms per joule (0.15 pounds per million Btu) heat input, based on a 30-day rolling average. NR 440.20(6)(a)(a) Percent reduction requirement for particulate matter. Compliance with the particulate matter emission limitation under sub. (3) (a) 1. constitutes compliance with the percent reduction requirements for particulate matter under sub. (3) (a) 2. and 3. NR 440.20(6)(b)(b) Percent reduction requirement for NOx. Compliance with the nitrogen oxides emission limitation under sub. (5) (a) 1. constitutes compliance with the percent reduction requirements under sub. (5) (a) 2. NR 440.20(6)(c)(c) Compliance exception. The particulate matter emissions standards under sub. (3) and the nitrogen oxides emission standards under sub. (5) apply at all times except during periods of startup, shutdown or malfunction. The sulfur dioxide emission standards under sub. (4) apply at all times except during periods of startup, shutdown or when both emergency conditions exist and the procedures under par. (d) are implemented. NR 440.20(6)(d)(d) Operation with malfunctioning flue gas desulfurization. During emergency conditions in the principal company, an affected facility with a malfunctioning flue gas desulfurization system may be operated if sulfur dioxide emissions are minimized by: NR 440.20(6)(d)1.1. Operating all operable flue gas desulfurization system modules, and bringing back into operation any malfunctioned module as soon as repairs are completed. NR 440.20(6)(d)2.2. Bypassing flue gases around only those flue gas desulfurization system modules that have been taken out of operation because they were incapable of any sulfur dioxide emission reduction or which would have suffered significant physical damage if they had remained in operation, and NR 440.20(6)(d)3.3. Designing, constructing and operating a spare flue gas desulfurization system module for an affected facility larger than 365 MW (1,250 million Btu/hr) heat input (approximately 125 MW electrical output capacity). The department may at its discretion require the owner or operator within 60 days of notification to demonstrate spare module capability. To demonstrate this capability, the owner or operator shall demonstrate compliance with the appropriate requirements under sub. (4) (a), (b), (d) and (h) for any period of operation lasting from 24 hours to 30 days when: NR 440.20(6)(d)3.c.c. The fuel fired during the 24-hour to 30-day period is representative of the type and average sulfur content of fuel used over a typical 30-day period, and NR 440.20(6)(d)3.d.d. The owner or operator has given the department at least 30 days notice of the date and period of time over which the demonstration will be performed. NR 440.20(6)(e)(e) Compliance after the initial performance test. After the initial performance test required under s. NR 440.08, compliance with the sulfur dioxide emission limitations and percentage reduction requirements under sub. (4) and the nitrogen oxides emission limitations under sub. (5) shall be based on the average emission rate for 30 successive boiler operating days. A separate performance test is completed at the end of each boiler operating day after the initial performance test, and a new 30-day average emission rate for both sulfur dioxide and nitrogen oxides and a new percent reduction of sulfur dioxide are calculated to show compliance with the standards.