Property, Plant And Equipment

12 Months Ended

Dec. 31, 2015

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):

	2015		2014
Avista Utilities:
Electric production	$	1,217,179	$	1,171,002
Electric transmission	640,586		603,909
Electric distribution	1,468,157		1,360,185
Electric construction work-in-progress (CWIP) and other	358,846		311,807
Electric total	3,684,768		3,446,903
Natural gas underground storage	43,080		41,963
Natural gas distribution	878,982		810,487
Natural gas CWIP and other	62,024		57,088
Natural gas total	984,086		909,538
Common plant (including CWIP)	456,796		394,027
Total Avista Utilities	5,125,650		4,750,468
AEL&P:
Electric production	72,292		71,969
Electric transmission	18,817		18,392
Electric distribution	19,005		17,936
Electric production held under long-term capital lease	71,007		71,007
Electric CWIP and other	16,971		7,893
Electric total	198,092		187,197
Common plant	8,133		8,155
Total AEL&P	206,225		195,352
Other (1)	25,709		25,803
Total	$	5,357,584	$	4,971,623

(1) Included in other property and investments-net on the Consolidated Balance Sheets. Accumulated depreciation was $10.6 million as of December 31, 2015 and $10.8 million as of December 31, 2014 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.