Borrowings and Other Financing Instruments (Tables)

9 Months Ended

Sep. 30, 2013

At Sept. 30, 2013, NSP-Wisconsin had the following committed credit facility available (in millions of dollars):



Credit Facility ^(a)		Drawn ^(b)		Available
$	150.0	$	11.0	$	139.0


^(a)	Credit facility expires in July 2017.


^(b)	Includes outstanding commercial paper.

Commercial Paper

Debt Instruments [Abstract]

Short-Term Borrowings

Commercial Paper — NSP-Wisconsin meets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings under its credit facility. Commercial paper outstanding for NSP-Wisconsin was as follows:



(Amounts in Millions, Except Interest Rates)	Three Months Ended Sept. 30, 2013			Twelve Months Ended Dec. 31, 2012
Borrowing limit	$	150		$	150
Amount outstanding at period end	11			39
Average amount outstanding	4			61
Maximum amount outstanding	19			116
Weighted average interest rate, computed on a daily basis	0.22		%	0.39		%
Weighted average interest rate at period end	0.18			0.40

Intercompany Borrowing Arrangement

Debt Instruments [Abstract]

Short-Term Borrowings

Other Short-Term Borrowings — The following table presents the notes payable of Clearwater Investments, Inc., a NSP-Wisconsin subsidiary, to Xcel Energy Inc.:



(Amounts in Millions, Except Interest Rates)	Sept. 30, 2013			Dec. 31, 2012
Notes payable to affiliates	$	0.5		$	0.6
Weighted average interest rate at period end	0.25		%	0.33		%