XML 73 R31.htm IDEA: XBRL DOCUMENT v3.8.0.1
Regulatory Matters (Tables)
9 Months Ended
Sep. 30, 2017
Regulated Operations [Abstract]  
Schedule of Potential Plant Retirements
The table below contains the net carrying value of generating facilities planned for retirement or included in recent IRPs as evaluated for potential retirement. Dollar amounts in the table below are included in Net property, plant and equipment on the Condensed Consolidated Balance Sheets as of September 30, 2017, and exclude capitalized asset retirement costs.
 
 
 
Remaining Net

 
Capacity

 
Book Value

 
(in MW)

 
(in millions)

Duke Energy Carolinas
 
 
 
Allen Steam Station Units 1-3(a)
585

 
$
164

Progress Energy and Duke Energy Florida
 
 
 
Crystal River Units 1 and 2(b)
873

 
111

Duke Energy Indiana
 
 
 
Gallagher Units 2 and 4(c)
280

 
130

Total Duke Energy
1,738

 
$
405

(a)
Duke Energy Carolinas will retire Allen Steam Station Units 1 through 3 by December 31, 2024, as part of the resolution of a lawsuit involving alleged New Source Review violations.
(b)
Duke Energy Florida will likely retire these coal units by 2018 to comply with environmental regulations.
(c)
Duke Energy Indiana committed to either retire or stop burning coal at Gallagher Units 2 and 4 by December 31, 2022, as part of the settlement of Edwardsport IGCC matters.