(a) Calculate the annual SF6 and PFC emissions using the mass-balance approach in Equation DD-1 of this section: [GRAPHIC] [TIFF OMITTED] TR01DE10.053 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.