Environmental Protection Agency § 98.303

calibration of flow rate meters and (2) Circuit breakers. other measurement devices. The esti- (3) Switchgear, including closed-pres- mated accuracy of measurements made sure and hermetically sealed-pressure with these devices must also be re- switchgear and gas-insulated lines con- corded, and the technical basis for taining SF6 or PFCs. these estimates must be provided. (4) Gas containers such as pressurized (c) Verification software records. You cylinders. must keep a record of the file gen- (5) Gas carts. erated by the verification software (6) Electric power transformers. specified in § 98.5(b) for the applicable (7) Other containers of SF6 or PFC. data specified in paragraphs (c)(1) through (4) of this section. Retention § 98.301 Reporting threshold. of this file satisfies the recordkeeping (a) You must report GHG emissions requirement for the data in paragraphs from an electric power system if the (c)(1) through (4) of this section total nameplate capacity of SF6 and (1) Inorganic carbon content in trona PFC containing equipment (excluding input, from the carbon analysis results hermetically sealed-pressure equip- for month (percent by weight, ex- ment) located within the facility, when pressed as a decimal fraction) (Equa- added to the total nameplate capacity tion CC–1 of § 98.293). of SF6 and PFC containing equipment (2) Mass of trona input in month (excluding hermetically sealed-pres- (tons) (Equation CC–1). sure equipment) that is not located (3) Inorganic carbon content in soda within the facility but is under com- ash output, from the carbon analysis mon ownership or control, exceeds results for month (percent by weight, 17,820 pounds and the facility meets the expressed as a decimal fraction) (Equa- requirements of § 98.2(a)(1). tion CC–2 of § 98.293). (b) A facility other than an electric (4) Mass of soda ash output in month power system that is subject to this (tons) (Equation CC–2). part because of emissions from any other source category listed in Table [74 FR 56374, Oct. 30, 2009, as amended at 79 A–3 or A–4 in subpart A of this part is FR 63798, Oct. 24, 2014] not required to report emissions under § 98.298 Definitions. subpart DD of this part unless the total nameplate capacity of SF6 and PFC All terms used in this subpart have containing equipment located within the same meaning given in the Clean that facility exceeds 17,820 pounds. Air Act and subpart A of this part. § 98.302 GHGs to report. Subpart DD—Electrical Trans- You must report total SF6 and PFC mission and Distribution emissions from your facility (including Equipment Use emissions from fugitive equipment leaks, installation, servicing, equip- SOURCE: 75 FR 74855, Dec. 1, 2010, unless ment decommissioning and disposal, otherwise noted. and from storage cylinders) resulting from the transmission and distribution § 98.300 Definition of the source cat- servicing inventory and equipment egory. listed in § 98.300(a). For acquisitions of (a) The electrical transmission and equipment containing or insulated distribution equipment use source cat- with SF6 or PFCs, you must report egory consists of all electric trans- emissions from the equipment after the mission and distribution equipment title to the equipment is transferred to and servicing inventory insulated with the electric power transmission or dis- or containing sulfur hexafluoride (SF6) tribution entity. or perfluorocarbons (PFCs) used within an electric power system. Electric § 98.303 Calculating GHG emissions. transmission and distribution equip- (a) Calculate the annual SF6 and PFC ment and servicing inventory includes, emissions using the mass-balance ap- but is not limited to: proach in Equation DD–1 of this sec- (1) Gas-insulated substations. tion:

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where: (b) You must adhere to the following

Decrease in SF6 Inventory = (pounds of SF6 QA/QC methods for reviewing the com- stored in containers, but not in energized pleteness and accuracy of reporting: equipment, at the beginning of the year) (1) Review inputs to Equation DD–1 ¥ (pounds of SF6 stored in containers, of this section to ensure inputs and but not in energized equipment, at the outputs to the company’s system are end of the year). included. Acquisitions of SF6 = (pounds of SF6 pur- chased from chemical producers or dis- (2) Do not enter negative inputs and tributors in bulk) + (pounds of SF6 pur- confirm that negative emissions are chased from equipment manufacturers or not calculated. However, the Decrease distributors with or inside equipment, in- in SF6 Inventory and the Net Increase cluding hermetically sealed-pressure in Total Nameplate Capacity may be switchgear) + (pounds of SF6 returned to calculated as negative numbers. facility after off-site recycling). (3) Ensure that beginning-of-year in- Disbursements of SF6 = (pounds of SF6 in bulk and contained in equipment that is ventory matches end-of-year inventory from the previous year. sold to other entities) + (pounds of SF6 returned to suppliers) + (pounds of SF6 (4) Ensure that in addition to SF6 sent off site for recycling) + (pounds of purchased from bulk gas distributors, SF6 sent off-site for destruction). SF6 purchased from Original Equip- Net Increase in Total Nameplate Capacity of ment Manufacturers (OEM) and SF6 re- Equipment Operated = (The Nameplate turned to the facility from off-site re- Capacity of new equipment in pounds, in- cycling are also accounted for among cluding hermetically sealed-pressure switchgear) ¥ (Nameplate Capacity of the total additions. retiring equipment in pounds, including (c) Ensure the following QA/QC meth- hermetically sealed-pressure ods are employed throughout the year: switchgear). (Note that Nameplate Ca- (1) Ensure that cylinders returned to pacity refers to the full and proper the gas supplier are consistently charge of equipment rather than to the weighed on a scale that is certified to actual charge, which may reflect leak- be accurate and precise to within 2 age). pounds of true weight and is periodi- (b) Use Equation DD–1 of this section cally recalibrated per the manufactur- to estimate emissions of PFCs from er’s specifications. Either measure re- power transformers, substituting the sidual gas (the amount of gas remain- relevant PFC(s) for SF6 in the equa- ing in returned cylinders) or have the tion. gas supplier measure it. If the gas sup- plier weighs the residual gas, obtain § 98.304 Monitoring and QA/QC re- from the gas supplier a detailed month- quirements. ly accounting, within ± 2 pounds, of re- (a) For calendar year 2011 moni- sidual gas amounts in the cylinders re- toring, you may follow the provisions turned to the gas supplier. of § 98.3(d)(1) through (d)(2) for best (2) Ensure that cylinders weighed for available monitoring methods rather the beginning and end of year inven- than follow the monitoring require- tory measurements are weighed on a ments of this section. For purposes of scale that is certified to be accurate this subpart, any reference in and precise to within 2 pounds of true § 98.3(d)(1) through (d)(2) to 2010 means weight and is periodically recalibrated 2011, to March 31 means June 30, and to per the manufacturer’s specifications. April 1 means July 1. Any reference to All scales used to measure quantities the effective date in § 98.3(d)(1) through that are to be reported under § 98.306 (d)(2) means February 28, 2011. must be calibrated using calibration

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procedures specified by the scale manu- (e) Pounds of SF6 and PFC stored in facturer. Calibration must be per- containers, but not in energized equip- formed prior to the first reporting ment, at the end of the year. year. After the initial calibration, re- (f) Pounds of SF6 and PFC purchased calibration must be performed at the in bulk from chemical producers or dis- minimum frequency specified by the tributors. manufacturer. (g) Pounds of SF6 and PFC purchased (3) Ensure all substations have pro- from equipment manufacturers or dis- vided information to the manager com- tributors with or inside equipment, in- piling the emissions report (if it is not cluding hermetically sealed-pressure already handled through an electronic switchgear. inventory system). (h) Pounds of SF6 and PFC returned (d) GHG Monitoring Plans, as de- to facility after off-site recycling. scribed in § 98.3(g)(5), must be com- (i) Pounds of SF6 and PFC in bulk pleted by April 1, 2011. and contained in equipment sold to other entities. [74 FR 56374, Oct. 30, 2009, as amended at 78 (j) Pounds of SF6 and PFC returned FR 71966, Nov. 29, 2013] to suppliers. (k) Pounds of SF6 and PFC sent off- § 98.305 Procedures for estimating site for recycling. missing data. (l) Pounds of SF6 and PFC sent off- A complete record of all measured site for destruction. parameters used in the GHG emissions calculations is required. Replace miss- § 98.307 Records that must be re- ing data, if needed, based on data from tained. equipment with a similar nameplate In addition to the information re- capacity for SF6 and PFC, and from quired by § 98.3(g), you must retain similar equipment repair, replacement, records of the information reported and and maintenance operations. listed in § 98.306.

§ 98.306 Data reporting requirements. § 98.308 Definitions. In addition to the information re- Except as specified in this section, all quired by § 98.3(c), each annual report terms used in this subpart have the must contain the following informa- same meaning given in the Clean Air tion for each electric power system, by Act and subpart A of this part. chemical: Facility, with respect to an electric (a) Nameplate capacity of equipment power system, means the electric power system as defined in this para- (pounds) containing SF and nameplate 6 graph. An electric power system is capacity of equipment (pounds) con- comprised of all electric transmission taining each PFC: and distribution equipment insulated (1) Existing at the beginning of the with or containing SF6 or PFCs that is year (excluding hermetically sealed- linked through electric power trans- pressure switchgear). mission or distribution lines and func- (2) New during the year (all SF6-insu- tions as an integrated unit, that is lated equipment, including hermeti- owned, serviced, or maintained by a cally sealed-pressure switchgear). single electric power transmission or (3) Retired during the year (all SF6- distribution entity (or multiple enti- insulated equipment, including her- ties with a common owner), and that is metically sealed-pressure switchgear). located between: (1) The point(s) at (b) Transmission miles (length of which electric energy is obtained from lines carrying voltages above 35 kilo- an electricity generating unit or a dif- volt). ferent electric power transmission or (c) Distribution miles (length of lines distribution entity that does not have carrying voltages at or below 35 kilo- a common owner, and (2) the point(s) volt). at which any customer or another elec- (d) Pounds of SF6 and PFC stored in tric power transmission or distribution containers, but not in energized equip- entity that does not have a common ment, at the beginning of the year. owner receives the electric energy. The

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facility also includes servicing inven- § 98.313 Calculating GHG emissions. tory for such equipment that contains You must calculate and report the SF6 or PFCs. annual process CO2 emissions for each Electric power transmission or distribu- chloride process line using the proce- tion entity means any entity that trans- dures in either paragraph (a) or (b) of mits, distributes, or supplies elec- this section. tricity to a consumer or other user, in- (a) Calculate and report under this cluding any company, electric coopera- subpart the process CO2 emissions by tive, public electric supply corpora- operating and maintaining a CEMS ac- tion, a similar Federal department (in- cording to the Tier 4 Calculation Meth- cluding the Bureau of Reclamation or odology specified in § 98.33(a)(4) and all the Corps of Engineers), a municipally associated requirements for Tier 4 in owned electric department offering subpart C of this part (General Sta- service to the public, an electric public tionary Fuel Combustion Sources). utility district, or a jointly owned elec- (b) Calculate and report under this tric supply project. subpart the annual process CO2 emis- Operator, for the purposes of this sub- sions for each chloride process line by part, means any person who operates determining the mass of calcined pe- or supervises a facility, excluding a troleum coke consumed in each line as specified in paragraphs (b)(1) through person whose sole responsibility is to (b)(3) of this section. Use Equation EE– ensure reliability, balance load or oth- 1 of this section to calulate annual erwise address electricity flow. combined process CO2 emissions from all process lines and use Equation EE– Subpart EE—Titanium Dioxide 2 of this section to calculate annual Production process CO2 emissions for each process line. If your facility generates carbon- § 98.310 Definition of the source cat- containing waste, use Equation EE–3 of egory. this section to estimate the annual The titanium dioxide production quantity of carbon-containing waste source category consists of facilities generated and its carbon contents ac- that use the chloride process to cording to § 98.314(e) and (f): produce titanium dioxide. (1) You must calculate the annual CO2 process emissions from all process § 98.311 Reporting threshold. lines at the facility using Equation EE–1 of this section: You must report GHG emissions under this subpart if your facility con- m tains a titanium dioxide production = CO2 ∑ Ep (Eq. EE-1) process and the facility meets the re- = quirements of either § 98.2(a)(1) or p 1 (a)(2). Where: CO2 = Annual CO2 emissions from titanium § 98.312 GHGs to report. dioxide production facility (metric tons/ year). (a) You must report CO process 2 Ep = Annual CO2 emissions from chloride emissions from each chloride process process line p (metric tons), determined line as required in this subpart. using Equation EE–2 of this section. p = Process line. (b) You must report CO2, CH4, and N O emissions from each stationary m = Number of separate chloride process 2 lines located at the facility. combustion unit under subpart C of this part (General Stationary Fuel (2) You must calculate the annual Combustion Sources) by following the CO2 process emissions from each proc- requirements of subpart C. ess lines at the facility using Equation EE–2 of this section:

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