Property, Plant And Equipment

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT

The balances of the major classifications of property, plant and equipment are detailed in the following table as of December 31 (dollars in thousands):

	2014		2013
Avista Utilities:
Electric production	$	1,171,002	$	1,141,790
Electric transmission	603,909		569,056
Electric distribution	1,360,185		1,284,428
Electric construction work-in-progress (CWIP) and other	311,807		276,582
Electric total	3,446,903		3,271,856
Natural gas underground storage	41,963		41,248
Natural gas distribution	810,487		762,044
Natural gas CWIP and other	57,088		47,751
Natural gas total	909,538		851,043
Common plant (including CWIP)	394,027		327,888
Total Avista Utilities	4,750,468		4,450,787
Alaska Electric Light and Power Company:
Electric production	71,969		—
Electric transmission	18,392		—
Electric distribution	17,936		—
Electric production held under long-term capital lease	71,007		—
Electric CWIP and other	7,893		—
Electric total	187,197		—
Common plant	8,155		—
Total Alaska Electric Light and Power Company	195,352		—
Ecova (1)	—		31,865
Other (1)	25,803		20,132
Total	$	4,971,623	$	4,502,784

(1) Included in other property and investments-net on the Consolidated Balance Sheets. Ecova was sold on June 30, 2014; therefore, there is no property and equipment associated with them as of December 31, 2014. Accumulated depreciation was $26.4 million as of December 31, 2013 for Ecova. Accumulated depreciation was $10.8 million as of December 31, 2014 and $11.4 million as of December 31, 2013 for the other businesses. The decrease in accumulated depreciation for the other businesses was due to the sale of certain assets which were nearing the end of their useful lives during 2014.