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Jointly-Owned Facilities
 12 Months Ended
Dec. 31, 2011
Jointly-Owned Facilities  
Jointly-Owned Facilities

 

 

10.                               Jointly-Owned Facilities

 

APS shares ownership of some of its generating and transmission facilities with other companies.  Our share of operations and maintenance expense and utility plant costs related to these facilities is accounted for using proportional consolidation.  The following table shows APS’s interests in those jointly-owned facilities recorded on the Consolidated Balance Sheets at December 31, 2011 (dollars in thousands):

 

 

 

Percent
Owned

 

Plant in
Service

 

Accumulated
Depreciation

 

Construction
Work in
Progress

 

Generating facilities:

 

 

 

 

 

 

 

 

 

Palo Verde Units 1 and 3

 

29.1

%

$

2,061,894

 

$

1,154,141

 

$

66,558

 

Palo Verde Unit 2 (a)

 

17.0

%

661,006

 

365,704

 

33,032

 

Palo Verde Sale Leaseback

 

 

(a)

351,050

 

218,186

 

—

 

Four Corners Units 4 and 5

 

15.0

%

165,139

 

104,910

 

2,357

 

Four Corners common

 

38.44

%

16,413

 

5,997

 

750

 

Navajo Generating Station Units 1, 2 and 3

 

14.0

%

264,227

 

170,777

 

10,327

 

Cholla common facilities (b)

 

63.3

%(c)

146,642

 

51,985

 

1,661

 

Transmission facilities:

 

 

 

 

 

 

 

 

 

ANPP 500kV System

 

33.0

%(c)

88,451

 

30,123

 

10,161

 

Navajo Southern System

 

25.9

%(c)

51,174

 

15,161

 

920

 

Palo Verde — Yuma 500kV System

 

44.1

%(c)

8,816

 

4,331

 

—

 

Four Corners Switchyards

 

39.6

%(c)

19,630

 

5,696

 

1,004

 

Phoenix — Mead System

 

17.5

%(c)

39,374

 

10,731

 

—

 

Palo Verde — Estrella 500kV System

 

50.0

%(c)

85,643

 

11,769

 

3,445

 

North Valley System

 

69.3

%(c)

95,057

 

1,757

 

3,821

 

Round Valley System

 

50.0

%(c)

570

 

320

 

—

 

 

(a)                                  See Note 20.

 

(b)                                 PacifiCorp owns Cholla Unit 4 and APS operates the unit for PacifiCorp.  The common facilities at Cholla are jointly-owned.

 

(c)                                  Weighted average of interests.