§ 123.202. Definitions.

 (a)  In addition to the words and terms in subsection (b), the definitions promulgated in 40 CFR Part 60, Subpart Da (relating to standards of performance for electric utility steam generating units for which construction is commenced after September 18, 1978) and 40 CFR Part 60, Subpart HHHH (relating to emission guidelines and compliance times for coal-fired electric steam generating units) are adopted in their entirety and incorporated by reference in this subsection.

 (b)  The following words and terms, when used in this section and § §  123.201 and 123.203—123.215, have the following meanings, unless the context clearly indicates otherwise:

   Act—The Air Pollution Control Act (35 P. S. § §  4001—4015).

   Administrator—The Administrator of the EPA or the Administrator’s authorized representative.

   Btu—British thermal unit—The amount of thermal energy necessary to raise the temperature of 1 pound of pure liquid water by 1° F. at the temperature at which water has its greatest density (39° F.).

   Bottoming-cycle cogeneration unit—A cogeneration unit in which the energy input to the unit is first used to produce useful thermal energy and at least some of the reject heat from the useful thermal energy application or process is then used for electricity production.

   CFB—Circulating fluidized bed unit—Combustion of fuel in a bed or series of beds in which these materials are forced upward by the flow of combustion air and the gaseous products of combustion.

   CO₂—Carbon dioxide.

   CS-ESP—Cold side electrostatic precipitator—A particulate control device installed downstream of a boiler air preheater that does the following:

     (i)   Charges particles with an electric field and causes them to migrate from the gas to a collection surface.

     (ii)   Treats flue gas after heat extraction from the gas has been completed.

     (iii)   Operates within a temperature range of no greater than 400° F.

   Clean Air Act—The Clean Air Act (42 U.S.C.A. § §  7401—7642) and the rules and regulations promulgated thereunder.

   Coal—

     (i)   Solid fuels classified as anthracite, bituminous, subbituminous or lignite by the ASTM International Standard D 388—77, 90, 91, 95, 98A or 99, Specification for Classification of Coals by Rank.

     (ii)   The term includes synthetic fuels derived from coal and coal refuse for the purpose of creating useful heat, including solvent refined coal, gasified coal, coal-oil mixtures and coal-water mixtures.

   Coal refuse—Waste products of coal mining, physical coal cleaning and coal preparation operations (for example—culm, gob, and the like) containing coal, matrix material, clay and other organic and inorganic material.

   Cogeneration unit—A stationary, coal-fired boiler or stationary, coal-fired combustion turbine which:

     (i)   Has equipment used to produce electricity and useful thermal energy for industrial, commercial, heating or cooling purposes through the sequential use of energy.

     (ii)   Produces, for a topping-cycle cogeneration unit, during the 12-month period starting on the date the unit first produces electricity and during any calendar year after the 12-month period in which the unit first produces electricity:

       (A)   Useful thermal energy not less than 5% of total energy output.

       (B)   Useful power that when added to one-half of useful thermal energy produced:

         (I)   Is not less than 42.5% of total energy input, if useful thermal energy produced is 15% or more of total energy output.

         (II)   Is not less than 45% of total energy input, if useful thermal energy produced is less than 15% of total energy output.

     (iii)   Produces, for a bottoming-cycle cogeneration unit, during the 12-month period starting on the date the unit first produces electricity and during any calendar year after the 12-month period in which the unit first produces electricity, useful power not less than 45% of total energy input.

   Commence operation—To have begun any mechanical, chemical or electronic process, including, with regard to a unit, a start-up of a unit’s combustion chamber.

   Control period—The period beginning January 1 of a calendar year and ending on December 31 of the same year, inclusive.

   EGU—Electric generating unit—

     (i)   Except as provided in subparagraphs (iv) and (v), a stationary, coal or coal refuse-fired boiler or stationary, coal-fired combustion turbine in this Commonwealth that serves or has served at any time, since the later of November 15, 1990, or the start-up of the unit’s combustion chamber, a generator with nameplate capacity of more than 25 MWe producing electricity for sale.

     (ii)   A stationary boiler or stationary combustion turbine in this Commonwealth that is not an EGU under subparagraph (i) that begins to combust coal or coal-derived fuel or to serve a generator with nameplate capacity of more than 25 MWe producing electricity for sale shall become an electric generating unit as provided in subparagraph (i) on the first date on which it both combusts coal or coal-derived fuel and serves the generator.

     (iii)   A unit that qualifies as a cogeneration unit during the 12-month period starting on the date the unit first produces electricity and meets the requirements of subparagraph (iv) for at least 1 calendar year, but subsequently no longer meets the requirements shall become an EGU starting on the earlier of January 1 after the first calendar year during which the unit first no longer qualifies as a cogeneration unit or January 1 after the first calendar year during which the unit no longer meets the requirements of subparagraph (iv)(B).

     (iv)   A unit that is an EGU under subparagraphs (i) or (ii) and meets both of the following requirements will not be an EGU if it:

       (A)   Qualifies as a cogeneration unit during the 12-month period starting on the date the unit first produces electricity and continues to qualify as a cogeneration unit.

       (B)   Has not served at any time, since the later of November 15, 1990, or the startup of the unit’s combustion chamber, a generator with nameplate capacity of more than 25 MWe supplying in any calendar year more than one-third of the unit’s potential electric output capacity or 219,000 MWhs, whichever is greater, to any utility power distribution system for sale.

     (v)   A ‘‘solid waste incineration unit’’ as defined in section 129(g)(1) of the Clean Air Act (42 U.S.C.A. §  7554(g)(1)) that combusts ‘‘municipal waste’’ as defined in section 129(g)(5) of the Clean Air Act will not be an EGU if it is subject to one of the following rules:

       (A)   An EPA-approved state plan for implementing the requirements of 40 CFR Part 60, Subpart Cb (relating to emissions guidelines and compliance times for large municipal waste combustors that are constructed on or before September 20, 1994).

       (B)   40 CFR Part 60, Subpart Eb (relating to standards of performance for large municipal waste combustors for which construction is commenced after September 20, 1994 or for which modification or reconstruction is commenced after June 19, 1996).

       (C)   40 CFR Part 60, Subpart AAAA (relating to standards of performance for small municipal waste combustors for which construction is commenced after August 30, 1999 or for which modification or reconstruction is commenced after June 6, 2001).

       (D)   An EPA-approved state plan for implementing 40 CFR Part 60, Subpart BBBB (relating to emission guidelines and compliance times for small municipal waste combustion units constructed on or before August 30, 1999).

       (E)   40 CFR Part 62, Subpart FFF (relating to Federal plan requirements for large municipal waste combustors constructed on or before September 20, 1994).

       (F)   40 CFR Part 62, Subpart JJJ (relating to Federal plan requirements for small municipal waste combustion units constructed on or before August 30, 1999).

   Existing EGU—An EGU which commenced construction, modification or reconstruction on or before January 30, 2004, or which has three complete control periods of heat input data as of December 31 of the preceding control period.

   FF-Fabric filter—An add-on air pollution control system that removes particulate matter (PM) and emissions of nonvaporous metals by passing flue gas through filter bags.

   Facility—All units located on one or more contiguous or adjacent properties and which are owned or operated by the same person under common control.

   GWh—Gigawatt-hour—One billion watt-hours.

   Heat input—For a specified period of time, the product, expressed as million ‘‘Btus’’ per unit time (MMBtu/time), of the gross calorific value of the fuel (in ‘‘Btus’’ per pound fuel (Btu/LB fuel) divided by 1,000,000 Btu/MMBtu) multiplied by the fuel feed rate into a combustion device (in pounds of fuel per unit time (LB fuel/time)), as measured, recorded and reported to the Department by the owner or operator of an EGU and determined in accordance with 40 CFR 60.4170—60.4176 and excluding the heat derived from preheated combustion air, reticulated flue gases or exhaust from other sources.

   IGCC—Integrated gasification combined cycle unit—An electric utility steam generating unit that burns a synthetic gas derived from coal in a combined-cycle gas turbine. No coal is directly burned in the unit during operation.

   MMBtu—One million British thermal units.

   MW—Megawatt—A unit for measuring power equal to one million watts.

   MWe—Megawatt electric—One million watts of electric capacity.

   MWh—Megawatt-hour—One million watt-hours.

   Nameplate capacity—The maximum electrical generating output (in MWe) that the generator is capable of producing on a steady-state basis during continuous operation (when not restricted by seasonal or other deratings):

     (i)   As specified by the manufacturer, starting from the initial installation of the generator.

     (ii)   As specified by the person conducting the physical change, starting from the completion of a subsequent physical change in the generator resulting in an increase in the maximum electrical generating output in MWe.

   New EGU—An EGU which commenced construction, modification or reconstruction, as defined under 40 CFR Part 60 (relating to standards of performance for new stationary sources), on or after January 30, 2004, and has less than three complete control periods of heat input data as of December 31 of the preceding control period.

   O₂—Oxygen.

   Operator—

     (i)   A person who operates, controls or supervises an EGU or a facility that includes an EGU.

     (ii)   The term also includes a holding company, utility system or plant manager of an EGU or facility.

   Owner—

     (i)   A holder of any portion of the legal or equitable title in an EGU or a facility in this Commonwealth that includes an EGU.

     (ii)   The term also includes a holder of a leasehold interest in an EGU or a facility in this Commonwealth that includes an EGU.

   PCF—Pulverized coal-fired unit—

     (i)   A steam generating unit in which pulverized coal is introduced into an air stream that carries the coal to the combustion chamber of the steam generating unit where it is fired in suspension.

     (ii)   The term includes both conventional pulverized coal-fired and micropulverized coal-fired steam generating units.

   Phase 1—The period from January 1, 2010, through December 31, 2014.

   Phase 2—The period beginning January 1, 2015, and each subsequent year thereafter.

   Rolling 12-month basis—A determination made on a monthly basis from the relevant data for a particular calendar month and the preceding 11 calendar months (total of 12 months of data).

   SCR—Selective catalytic reduction—A process where a gaseous or liquid reductant (most commonly ammonia or urea) is added to the flue gas stream in the presence of a catalyst. The reductant reacts with nitrogen oxides in the flue gas to form molecular nitrogen.

   SO₂—Sulfur dioxide.

   Space velocity—The exhaust gas volume per hour of the SCR corrected to standard temperature and pressure divided by the volume of the catalyst.

   Standby unit—A unit that is out of operation but under a Department-approved maintenance plan as provided under §  127.11a (relating to reactivation of sources), which will enable the source to be reactivated in accordance with the terms of the permit issued to the source.

   System—The total number of EGUs under common ownership or operator control in this Commonwealth, which an owner or operator identifies to the Department as participating in an emissions compliance demonstration for the purpose of complying with §  123.207 (relating to annual emission limitations for coal-fired EGUs).

   System-wide compliance demonstration—Demonstrating compliance with the annual emission limitation by ensuring that the aggregate of actual mass emissions is less than the aggregate of allowable mass emissions for all EGUs in the system which are included in the demonstration.

   Topping-cycle cogeneration unit—A cogeneration unit in which the energy input to the unit is first used to produce useful power, including electricity, and at least some of the reject heat from the electricity production is then used to provide useful thermal energy.

   WFGD—Wet flue gas desulfurization unit—An SO₂ control system located downstream of the steam generating unit that removes SO₂ from the combustion gases of the steam generating unit by contacting the combustion gases with an alkaline slurry or solution including lime and limestone.

   Watt-hour—A unit of energy equivalent to 1 watt of power expended for 1 hour of time.

   The provisions of this §  123.202 issued under section 5(a)(1) of the Air Pollution Control Act (35 P. S. §  4005(a)(1)).

   The provisions of this §  123.202 adopted February 16, 2007, effective February 17, 2007, 37 Pa.B. 883.

   This section cited in 25 Pa. Code §  123.201 (relating to purpose); 25 Pa. Code §  123.203 (relating to applicability); 25 Pa. Code §  123.205 (relating to emission standards for coal-fired EGUs); 25 Pa. Code §  123.206 (relating to compliance requirements for the emission standards for coal-fired EGUs); 25 Pa. Code §  123.207 (relating to annual emission limitations for coal-fired EGUs); 25 Pa. Code §  123.209 (relating to petition process); 25 Pa. Code §  123.210 (relating to general monitoring and reporting requirements); 25 Pa. Code §  123.214 (relating to coal sampling and analysis for input mercury levels); and 25 Pa. Code §  123.215 (relating to recordkeeping and reporting).