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Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2022

Significant affiliate transactions among the companies and related parties including billings under the Interchange Agreement for the years ended Dec. 31:


(Millions of Dollars)	2022		2021		2020
Operating revenues:
Electric	$	202	$	189	$	168
Operating expenses:
Purchased power	445		408		379
Transmission expense	68		64		61
Natural gas purchased for resale	—		1		1
Other operating expenses — paid to Xcel Energy Services Inc.	114		99		92
Interest expense	1		—		—

Accounts receivable and payable with affiliates at Dec. 31 were:


	2022				2021
(Millions of Dollars)	Accounts Receivable		Accounts Payable		Accounts Receivable		Accounts Payable
NSP-Minnesota	$	—	$	4	$	—	$	13
PSCo	2		—		2		—
Other subsidiaries of Xcel Energy Inc.	6		15		1		10
	$	8	$	19	$	3	$	23