v3.26.1
Borrowings and Other Financing Instruments
 6 Months Ended
Jun. 30, 2026
Debt Disclosure [Abstract]  
Borrowings and Other Financing Instruments
Short-Term Borrowings
NSP-Wisconsin meets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings under its credit facility and the money pool.
Money Pool — Xcel Energy Inc. and its utility subsidiaries have established a money pool arrangement that allows for short-term investments in and borrowings between the utility subsidiaries. Xcel Energy Inc. may make investments in the utility subsidiaries at market-based interest rates; however, the money pool arrangement does not allow the utility subsidiaries to make investments in Xcel Energy Inc.
Money pool borrowings:
(Amounts in Millions, Except Interest Rates)Three Months Ended June 30, 2026Year Ended Dec. 31, 2025
Borrowing limit$150$150
Amount outstanding at period end—8
Average amount outstanding202
Maximum amount outstanding5842
Weighted average interest rate, computed on a daily basis3.69 %4.25 %
Weighted average interest rate at period endN/A3.88 
Commercial Paper — Commercial paper outstanding:
(Amounts in Millions, Except Interest Rates)Three Months Ended June 30, 2026Year Ended Dec. 31, 2025
Borrowing limit$150$150
Amount outstanding at period end——
Average amount outstanding—3
Maximum amount outstanding—50
Weighted average interest rate, computed on a daily basisN/A4.57 %
Weighted average interest rate at period endN/AN/A
Letters of Credit — NSP-Wisconsin uses letters of credit, generally with terms of one year, to provide financial guarantees for certain obligations. At both June 30, 2026 and Dec. 31, 2025, there were immaterial letters of credit outstanding under the credit facility.
Long-Term Borrowings
During the six months ended June 30, 2026 NSP-Wisconsin issued $250 million in aggregate principal amount of 5.48% First Mortgage Bonds due June 15, 2041.
Revolving Credit Facility — In order to issue its commercial paper, NSP-Wisconsin must have a revolving credit facility equal to or greater than the commercial paper borrowing limit and cannot issue commercial paper exceeding available capacity under this credit facility. The credit facility provides short-term financing in the form of notes payable to banks, letters of credit and back-up support for commercial paper borrowings.
NSP-Wisconsin has the right to request an extension of the revolving credit facility termination date for an additional one-year period. All extension requests are subject to majority bank group approval.
As of June 30, 2026, NSP-Wisconsin had the following committed revolving credit facility available (in millions of dollars):
Credit Facility (a)
Outstanding (b)
Available
$150 $— $150 
(a)Expires in December 2029.
(b)Includes outstanding commercial paper.
All credit facility bank borrowings, outstanding letters of credit and outstanding commercial paper reduce the available capacity under the credit facility. NSP-Wisconsin had no direct advances on the credit facility outstanding at June 30, 2026 and Dec. 31, 2025.