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

12 Months Ended

Dec. 31, 2013

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

Investments in Jointly Owned 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

- Definition

Tabular disclosure of proportionate interests in jointly owned utility plants. Includes the amount of plants in service, the accumulated provision for depreciation (if available), the amount of plants under construction, and the proportionate share. The amounts presented may be further subdivided to show amounts applicable to plant subcategories (for example, production, transmission, distribution). Includes statements that the amounts represent the utility's share in each joint plant and that it must provide its own financing. Information concerning two or more generating plants on the same site may be combined. States that the utility's share of direct expenses of the joint plants is included in the corresponding operating expenses on its income statement (for example, fuel, maintenance of plant, other operating expense). If the share of direct expenses is charged to purchased power, then disclose the amount so charged and the proportionate amounts charged to specific operating expenses on the records maintained for the joint plants.

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