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Palo Verde and Four Corners (Tables)
9 Months Ended
Sep. 30, 2016
Palo Verde Generating Station  
Palo Verde Operations & Maintenance Expenses [Line Items]  
Operations & Maintenance Expenses
Palo Verde Operations and Maintenance Expense. Included in other operations and maintenance expenses are expenses associated with Palo Verde as follows (in thousands):
 
 

 
 
2016
 
2015
Three months ended September 30,
 
$
21,123

 
$
22,016

Nine months ended September 30,
 
67,514

 
67,702

Twelve months ended September 30,
 
97,451

 
98,884