Joint Ownership of Generation, Transmission and Gas Facilities Joint Ownership of Generation, Transmission and Gas Facilities

12 Months Ended

Dec. 31, 2015

Joint Ownership of Generation, Transmission and Gas Facilities [Abstract]

Joint Ownership of Generation, Transmission and Gas Facilities

Joint Ownership of Generation, Transmission and Gas Facilities

Following are the investments by PSCo in jointly owned generation, transmission and gas facilities and the related ownership percentages as of Dec. 31, 2015:

(Thousands of Dollars)	Plant in Service		Accumulated Depreciation		CWIP		Ownership %
Electric Generation:
Hayden Unit 1	$	155,159	$	69,679	$	147	76	%
Hayden Unit 2	121,486		61,780		20,840		37
Hayden Common Facilities	37,756		17,910		321		53
Craig Units 1 and 2	60,158		36,570		8,518		10
Craig Common Facilities 1, 2 and 3	37,418		18,520		505		7
Comanche Unit 3	892,340		95,029		452		67
Comanche Common Facilities	23,826		1,430		894		82
Electric Transmission:
Transmission and other facilities, including substations	152,460		62,324		5,378		Various
Gas Transportation:
Rifle, Colo. to Avon, Colo.	19,928		7,165		—		60
Gas Transportation Compressor	$	8,353	$	124	$	127	50
Total	$	1,508,884	$	370,531	$	37,182

PSCo has approximately 820 MW of jointly owned generating capacity.  PSCo’s share of operating expenses and construction expenditures are included in the applicable utility accounts.  Each of the respective owners is responsible for providing its own financing.