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Joint Ownership of Generating and Transmission Facilities
12 Months Ended
Dec. 31, 2015
Joint Ownership Of Generating And Transmission Facilities [Abstract]  
Joint Ownership of Generating and Transmission Facilities
JOINT OWNERSHIP OF GENERATING AND TRANSMISSION FACILITIES
The Duke Energy Registrants maintain ownership interests in certain jointly owned generating and transmission facilities. The Duke Energy Registrants are entitled to a share of the generating capacity and output of each unit equal to their respective ownership interests, except as otherwise noted below. The Duke Energy Registrants pay their ownership share of additional construction costs, fuel inventory purchases and operating expenses, except in certain instances where agreements have been executed to limit certain joint owners’ maximum exposure to the additional costs. The Duke Energy Registrants share of revenues and operating costs of the jointly owned facilities is included within the corresponding line in the Consolidated Statements of Operations. Each participant in the jointly owned facilities must provide its own financing, except in certain instances where agreements have been executed to limit certain joint owners’ maximum exposure to the additional costs. 
The following table presents the Duke Energy Registrants' interest of jointly owned plant or facilities and amounts included on the Consolidated Balance Sheets. All facilities are operated by the Duke Energy Registrants and are included in the Regulated Utilities segment unless otherwise noted.
 
December 31, 2015
 
 
 
 
 
 
 
Construction

 
Ownership

 
Property, Plant

 
Accumulated

 
Work in

 
Interest

 
and Equipment

 
Depreciation

 
Progress

Duke Energy Carolinas
 

 
 
 
 
 
 
Catawba Nuclear Station (units 1 and 2)(a)
19.25
%
 
$
926

 
$
567

 
$
9

Duke Energy Florida
 
 
 

 
 

 
 

Intercession City Plant (unit 11)
(b)

 
24

 
15

 

Duke Energy Ohio
 
 
 

 
 

 
 

Transmission facilities(c)
Various

 
85

 
50

 
1

Duke Energy Indiana
 

 
 

 
 

 
 

Gibson Station (unit 5)(d)
50.05
%
 
329

 
151

 
5

Vermillion(e)
62.5
%
 
153

 
108

 

Transmission and local facilities(d)
Various

 
4,094

 
1,688

 

International Energy
 

 
 

 
 

 
 

Brazil – Canoas I and II(f)
47.2
%
 
160

 
57

 


(a)
Jointly owned with North Carolina Municipal Power Agency Number One, NCEMC and Piedmont Municipal Power Agency.
(b)
Jointly owned with Georgia Power Company (GPC). GPC has exclusive rights to the output of the unit during the months of June through September and pays all fuel and water costs during this period. Duke Energy Florida pays all fuel and water costs during the remaining months. Other costs are allocated 66.67 percent to Duke Energy Florida and the remainder to GPC.
(c)
Jointly owned with America Electric Power Generation Resources and The Dayton Power and Light Company. 
(d)
Jointly owned with Wabash Valley Power Association, Inc. (WVPA) and Indiana Municipal Power Agency.
(e)
Jointly owned with WVPA.
(f)
Jointly owned with Companhia Brasileira de Aluminio and included in the International segment.
On July 31, 2015, Duke Energy Progress completed the purchase of NCEMPA's ownership interests in jointly owned facilities. See Note 2 for additional information.
Duke Energy Florida owns 98.3 percent interest in the retired Crystal River Unit 3 nuclear plant and is in the process of obtaining the remaining 1.7 percent interest from Seminole Electric Cooperative. On October 30, 2015, Duke Energy Florida completed the purchase of 6.52 percent ownership interest in Crystal River Unit 3 from the Florida Municipal Joint Owners (FMJO) and settled other disputes for $55 million. All costs associated with Crystal River Unit 3 are included within Regulatory assets on the Consolidated Balance Sheets of Duke Energy, Progress Energy and Duke Energy Florida. See Note 4 for additional information.