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2. Condensate Polisher Tie Line
A condensate polisher purifies the feedwater that enters the
steam generator to protect the generator from corrosion. The
design for each of the reactors at the St. Lucie plant included a
condensate polisher. FPL claims ITCs for the condensate polisher
tie line in the 1989 and 1990 taxable years.
Apparently, in 1982 there was a plan change or modification
for St. Lucie Unit 1. An engineering study, dated November 13,
1985, recommended the use of cross-tie piping to protect the
generator from corrosion. The recommended system would purify
the feedwater in the second unit by using the polishers at the
first unit. The system uses the cross-tie lines to purify the
feedwater by passing the water discharged from the condensate
pumps at St. Lucie Unit 2 to the condensate polishers at St.
Lucie Unit 1. After passing through the condensate polisher, the
water returns to the condensate system at St. Lucie Unit 2 via
the cross-tie lines, and then the water feeds through the steam
generators.58
ER No. 6195, processed on June 22, 1983, authorized the
expenditure of $15,243,000 as part of the “backfit program” on
St. Lucie Unit 2. The ER states:
58 In a letter dated Jan. 9, 1986, Mr. Paduano recommended
the installation of the cross-tie option for St. Lucie Unit 2.
The record contains numerous letters describing the design
process for going forward with the condensate polisher cross-tie
line for St. Lucie Unit 2.
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