XML 100 R16.htm IDEA: XBRL DOCUMENT v3.3.0.814
Jointly Owned Facilities
12 Months Ended
Dec. 31, 2014
PPL Energy Supply LLC [Member]  
Jointly Owned Facilities
8. Jointly Owned Facilities

At December 31, 2014 and 2013, the Balance Sheets reflect the owned interests in the facilities listed below.

 

     Ownership
Interest
    Electric
Plant
     Other
Property
     Accumulated
Depreciation
     Construction
Work in
Progress
 

December 31, 2014

             

Generating Plants

             

Susquehanna

     90.00   $ 4,746          $ 3,591       $ 117   

Conemaugh

     16.25     330            141         2   

Keystone

     12.34     213            102         2   

Merrill Creek Reservoir

     8.37      $ 22         15      

December 31, 2013

             

Generating Plants

             

Susquehanna

     90.00   $ 4,686          $ 3,545       $ 76   

Conemaugh

     16.25     247            131         63   

Keystone

     12.34     207            91         2   

Merrill Creek Reservoir

     8.37         $ 22         16   

Each subsidiary owning these interests provides its own funding for its share of the facility. Each receives a portion of the total output of the generating plants equal to its percentage ownership. The share of fuel and other operating costs associated with the plants is included in the corresponding operating expenses on the Statements of Income.

In addition to the interests mentioned above, at December 31, 2014 and 2013, PPL Montana had a 50% ownership interest in Colstrip Units 1 and 2 and a 30% ownership interest in Colstrip Unit 3. The book value of these assets was not significant. At December 31, 2014 and 2013, NorthWestern owned a 30% interest in Colstrip Unit 4. PPL Montana and NorthWestern have a sharing agreement that governs each party’s responsibilities and rights relating to the operation of Colstrip Units 3 and 4. Under the terms of that agreement, each party is responsible for 15% of the total non-coal operating and construction costs of Colstrip Units 3 and 4, regardless of whether a particular cost is specific to Colstrip Unit 3 or 4, and is entitled to take up to the same percentage of the available generation from Units 3 and 4.