XML 43 R32.htm IDEA: XBRL DOCUMENT v2.4.0.6
Electric plant, construction and related agreements: (Tables)
 12 Months Ended
Dec. 31, 2012
Electric plant, construction and related agreements:  
Summary of plant investments and related accumulated depreciation

 

 

   

 

   2012    2011    

 

     (dollars in thousands)  

Plant

     Investment     Accumulated
Depreciation		     Investment     Accumulated
Depreciation		  
   

In-service(1)

                          

Owned property

                          

Vogtle Units No. 1 & No. 2
(Nuclear – 30% ownership)

   $ 2,745,800   $ (1,566,133 ) $ 2,726,129   $ (1,528,841 )

Vogtle Unit No. 3 & No. 4
(Nuclear – 30% ownership)

     8,956     (147 )   –        –     

Hatch Units No. 1 & No. 2
(Nuclear – 30% ownership)

     645,722     (361,554 )   603,865     (369,189 )

Wansley Units No. 1 & No. 2
(Fossil – 30% ownership)

     441,340     (147,890 )   394,596     (129,994 )

Scherer Unit No. 1
(Fossil – 60% ownership)

     696,223     (288,701 )   663,583     (269,525 )

Rocky Mountain Units No. 1, No. 2 & No. 3
(Hydro – 75% ownership)

     585,133     (187,763 )   584,569     (176,356 )

Hartwell (Combustion Turbine – 100% ownership)

     224,374     (89,822 )   223,936     (85,337 )

Hawk Road (Combustion Turbine – 100% ownership)

     243,963     (56,593 )   241,587     (51,253 )

Talbot (Combustion Turbine – 100% ownership)

     281,009     (86,000 )   280,413     (77,616 )

Chattahoochee (Combined cycle – 100% ownership)

     301,246     (88,272 )   299,117     (79,285 )

Smith (Combined cycle – 100% ownership)

     553,942     (123,575 )   554,158     (109,741 )

Wansley (Combustion Turbine – 30% ownership)

     3,624     (3,161 )   3,684     (3,084 )

Transmission plant

     84,801     (45,381 )   78,470     (41,539 )

Other

     109,461     (67,415 )   106,083     (64,433 )

Property under capital lease:

                          

Doyle (Combustion Turbine – 100% leasehold)

     126,990     (82,546 )   126,990     (80,030 )

Scherer Unit No. 2 (Fossil – 60% leasehold)

     454,123     (277,134 )   448,686     (262,362 )
   

Total in-service

  
$
7,506,707		  
$
(3,472,087
)
$
7,335,866		  
$
(3,328,585
)
   

Construction work in progress

                          

Vogtle Unit No. 3 & No. 4

   $ 1,613,791         $ 1,287,649        

Environmental and other generation improvements

     626,264           495,597        

Other

     865           1,018        
   

Total construction work in progress

  
$
2,240,920		        
$
1,784,264		        
   
(1)
Amounts include plant acquisition adjustments at December 31, 2012 and 2011 of $196,000,000 and $198,000,000, respectively.