Joint Ownership of Generation, Transmission and Gas Facilities Joint Ownership of Generation, Transmission and Gas Facilities (Notes)

12 Months Ended

Dec. 31, 2013

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, 2013:

(Thousands of Dollars)	Plant in Service		Accumulated Depreciation		CWIP		Ownership %
Electric Generation:
Hayden Unit 1	$	97,879	$	63,474	$	53	75.5	%
Hayden Unit 2	119,972		57,875		5,563		37.4
Hayden Common Facilities	36,916		16,055		2		53.1
Craig Units 1 and 2	60,089		34,754		537		9.7
Craig Common Facilities 1, 2 and 3	37,177		17,247		—		6.5
Comanche Unit 3	877,489		63,963		581		66.7
Comanche Common Facilities	19,812		711		2,255		82.0
Electric Transmission:
Transmission and other facilities, including substations	150,502		59,118		827		Various
Gas Transportation:
Rifle, Colo. to Avon, Colo.	16,278		6,044		—		60.0
Total	$	1,416,114	$	319,241	$	9,818

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.