Section NR 446.14 - Multipollutant reduction alternative for coal-fired electrical generating units(1) An owner or operator of a large or small coal-fired EGU may elect to meet the emission limitations in this section instead of the emission limitations of s. NR 446.12 or i n 446.13 accordance with the provisions of s. NR 446.17(2). The following annual emission limitations for NOx, SO2 and mercury apply to each unit for which the owner or operator makes an election under this section: (a) For NOx, beginning April 16, 2016, 0.07 pounds per mmBtu of heat input.(b) For SO2, beginning April 16, 2016, 0.10 pounds per mmBtu of heat input.(c) For mercury emissions, all of the following:1. Beginning April 16, 2016 and to December 31, 2017, a 70% mercury emission reduction as measured from the mercury content of fuel combusted or 0.0190 pounds per gigawatt-hour (1bs/GWh).2. Beginning January 1, 2018 and to December 31, 2020, an 80% mercury emission reduction as measured from the mercury content of fuel combusted or 0.0130 pounds per gigawatt-hour (1bs/GWh).3. Beginning January 1, 2021, a 90% mercury emission reduction as measured from the mercury content of fuel combusted or 0.0080 pounds per gigawatt-hour (1bs/GWh).(2) An owner or operator may achieve compliance with sub. (1) by either of the following methods: (a)Unit-by-unit compliance. Demonstrating that the mercury, NOx and SO2 emissions from each coal-fired EGU meet the applicable emission limitation in sub. (1) using the measurement methods and calculation procedures in s. NR 446.18.(b)Unit averaging. Demonstrating that for each pollutant, the sum of the emissions from all coal-fired EGUs subject to the emission limits in sub. (1) do not exceed the sum of the annual allowable mercury, NOx or SO2 emissions for the coal-fired EGUs using the measurement methods and calculation procedures in s. NR 446.18.Wis. Admin. Code Department of Natural Resources NR 446.14
CR 07-036: cr. Register November 2008 No. 635, eff. 12-1-08; CR 13-089: am. (1) (a), (b), (c) 1. Register July 2014 No. 703, eff. 8-1-14.