40 CFR 98.303 - Calculating GHG emissions.

§ 98.303 Calculating GHG emissions.

(a) Calculate the annual SF6 and PFC emissions using the mass-balance approach in Equation DD-1 of this section:

where:
Decrease in SF6 Inventory = (pounds of SF6 stored in containers, but not in energized equipment, at the beginning of the year) − (pounds of SF6 stored in containers, but not in energized equipment, at the end of the year).
Acquisitions of SF6 = (pounds of SF6 purchased from chemical producers or distributors in bulk) (pounds of SF6 purchased from equipment manufacturers or distributors with or inside equipment, including hermetically sealed-pressure switchgear) (pounds of SF6 returned to facility after off-site recycling).
Disbursements of SF6 = (pounds of SF6 in bulk and contained in equipment that is sold to other entities) (pounds of SF6 returned to suppliers) (pounds of SF6 sent off site for recycling) (pounds of SF6 sent off-site for destruction).
Net Increase in Total Nameplate Capacity of Equipment Operated = (The Nameplate Capacity of new equipment in pounds, including hermetically sealed-pressure switchgear) − (Nameplate Capacity of retiring equipment in pounds, including hermetically sealed-pressure switchgear). (Note that Nameplate Capacity refers to the full and proper charge of equipment rather than to the actual charge, which may reflect leakage).

(b) Use Equation DD-1 of this section to estimate emissions of PFCs from power transformers, substituting the relevant PFC(s) for SF6 in the equation.

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

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