5. Joint Ownership of Generation, Transmission and Gas Facilities

Following are the investments by Xcel Energy Inc.'s utility subsidiaries in jointly owned generation, transmission and gas facilities and the related ownership percentages as of Dec. 31, 2011:

					Construction
	Plant in		Accumulated		Work in
(Thousands of Dollars)	Service		Depreciation		Progress		Ownership %
NSP-Minnesota
Electric Generation:
Sherco Unit 3	$	565,832	$	358,907	$	3,731		59.0	%
Sherco Common Facilities Units 1, 2 and 3		138,790		82,229		531		80.0
Sherco Substation		4,790		2,621		-		59.0
Electric Transmission:
Grand Meadow Line and Substation		11,204		855		-		50.0
CapX2020 Transmission		57,856		8,899		74,404		49.6
Total NSP-Minnesota	$	778,472	$	453,511	$	78,666

					Construction
	Plant in		Accumulated		Work in
(Thousands of Dollars)	Service		Depreciation		Progress		Ownership %
PSCo
Electric Generation:
Hayden Unit 1	$	88,337	$	60,549	$	830		75.5	%
Hayden Unit 2		119,621		55,126		722		37.4
Hayden Common Facilities		34,558		14,155		1		53.1
Craig Units 1 and 2		54,058		33,225		193		9.7
Craig Common Facilities 1, 2 and 3		35,241		15,896		2,863		6.5 - 9.7
Comanche Unit 3		867,976		28,973		1,014		66.7
Comanche Common Facilities		12,628		219		169		82.0
Electric Transmission:
Transmission and other facilities, including substations		150,420		56,654		449	Various
Gas Transportation:
Rifle to Avon		16,278		6,333		-		60.0
Total PSCo	$	1,379,117	$	271,130	$	6,241

NSP-Minnesota and PSCo have approximately 500 MW and 820 MW of jointly owned generating capacity, respectively. NSP-Minnesota's and 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.

NSP-Minnesota is part owner of Sherco Unit 3, an 860 MW, coal-fueled electric generating unit. NSP-Minnesota is the operating agent under the joint ownership agreement. In November 2011, Sherco Unit 3 experienced a significant failure of its turbine, generator, and exciter systems. The facility was immediately shut down and isolated for investigation of the cause of the failure, which is still uncertain. It is unknown when Sherco Unit 3 will recommence operations. NSP-Minnesota maintains insurance policies for the entire unit, inclusive of the other joint owner's proportionate share. Replacement and repair of damaged systems, and other significant costs of the failure in excess of a $1.5 million deductible are expected to be recovered through these insurance policies. For its proportionate share of possible expenditures in excess of insurance recoveries for components of the jointly owned facility, NSP-Minnesota will recognize additions to property, plant and equipment and O&M. Sherco Units 1 and 2, wholly owned by NSP-Minnesota, continue to operate.