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Electric Plant and Depreciation
 12 Months Ended
Dec. 31, 2016
Public Utilities Property Plant And Equipment [Abstract]  
Electric Plant and Depreciation

3.

Electric Plant and Depreciation

The major classes of electric plant are as follows:

 

 

 

For the Years Ended December 31,

 

(In thousands)

 

2016

 

 

2015

 

Electric plant:

 

 

 

 

 

 

 

 

Transmission plant

 

$

1,203,164

 

 

$

1,080,050

 

Distribution plant

 

 

575,648

 

 

 

457,988

 

General plant

 

 

15,959

 

 

 

15,655

 

Total plant in service

 

 

1,794,771

 

 

 

1,553,693

 

CWIP

 

 

107,189

 

 

 

121,602

 

Total electric plant

 

 

1,901,960

 

 

 

1,675,295

 

Accumulated depreciation

 

 

(261,140

)

 

 

(240,764

)

Electric plant, net

 

$

1,640,820

 

 

$

1,434,531

 

 

General plant consists primarily of a warehouse, buildings and associated assets. CWIP relates to various transmission and distribution projects underway. The capitalized amounts of CWIP consist primarily of route development expenditures, labor and materials expenditures, right of way acquisitions, engineering services and legal fees. Electric plant, net includes plant acquisition adjustments of $27.7 million and $28.6 million at December 31, 2016 and 2015, respectively.