PROPERTY, PLANT AND EQUIPMENT AND JOINTLY-OWNED PROJECTS:

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Disclosure

PROPERTY, PLANT AND EQUIPMENT AND JOINTLY-OWNED PROJECTS

The following table presents the major classifications of Idaho Power’s utility plant in service, annual depreciation provisions as a percent of average depreciable balance, and accumulated provision for depreciation for the years 2015 and 2014 (in thousands of dollars):

	2015					2014
	Balance			Avg Rate		Balance			Avg Rate
Production	$	2,422,175		2.46	%	$	2,316,941		2.48	%
Transmission	1,077,065			2.01	%	1,016,207			2.03	%
Distribution	1,578,445			2.72	%	1,516,933			2.72	%
General and Other	407,779			5.62	%	398,131			5.49	%
Total in service	5,485,464			2.68	%	5,248,212			2.68	%
Accumulated provision for depreciation	(1,913,927		)			(1,841,011		)
In service - net	$	3,571,537				$	3,407,201

Idaho Power's ownership interest in three jointly-owned generating facilities is included in the table above.  Under the joint operating agreements for these facilities, each participating utility is responsible for financing its share of construction, operating, and leasing costs.  Idaho Power's proportionate share of operating expenses for each facility is included in the Consolidated Statements of Income. These jointly-owned facilities, including balance sheet amounts and the extent of Idaho Power’s participation, were as follows at December 31, 2015 (in thousands of dollars): 

Name of Plant	Location	Utility Plant in Service		Construction Work in Progress		Accumulated Provision for Depreciation		Ownership %	MW(1)
Jim Bridger Units 1-4	Rock Springs, WY	$	641,382	$	46,094	$	296,671	33	771
Boardman	Boardman, OR	81,252		113		63,715		10	64
Valmy Units 1 and 2	Winnemucca, NV	402,276		1,135		184,604		50	284

⁽¹⁾ Idaho Power’s share of nameplate capacity.

IERCo, Idaho Power’s wholly-owned subsidiary, is a joint venturer in BCC.  Idaho Power’s coal purchases from the joint venture were $93 million in 2015 and $79 million in each of 2014 and 2013.

Idaho Power has contracts to purchase the energy from four PURPA qualified facilities that are 50 percent owned by Ida-West.  Idaho Power’s power purchases from these facilities were $8 million in 2015 and $9 million in each of 2014 and 2013.

IDACORP's consolidated VIE, Marysville, owns a hydroelectric plant with a net book value of approximately $19 million at December 31, 2015 and 2014.