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

12 Months Ended

Dec. 31, 2014

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, 2014:

(Thousands of Dollars)	Plant in Service		Accumulated Depreciation		CWIP		Ownership %
Electric Generation:
Hayden Unit 1	$	98,145	$	66,333	$	1,405	75.5	%
Hayden Unit 2	121,571		59,999		8,867		37.4
Hayden Common Facilities	37,049		16,928		135		53.1
Craig Units 1 and 2	59,860		35,573		3,013		9.7
Craig Common Facilities 1, 2 and 3	36,890		17,735		527		6.5
Comanche Unit 3	883,971		81,748		64		66.7
Comanche Common Facilities	23,624		1,051		308		82.0
Electric Transmission:
Transmission and other facilities, including substations	151,301		60,847		1,730		Various
Gas Transportation:
Rifle, Colo. to Avon, Colo.	16,278		5,594		—		60.0
Total	$	1,428,689	$	345,808	$	16,049

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.