Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2014

The table below contains significant affiliate transactions among the companies and related parties for the years ended Dec. 31:



(Thousands of Dollars)	2014		2013		2012
Operating revenues:
Electric	$	9,614	$	8,136	$	9,271
Other	4,441		4,441		4,441
Operating expenses:
Purchased power	23		1,331		6,539
Other operating expenses — paid to Xcel Energy Services Inc.	454,250		375,766		316,548
Interest expense	158		132		114
Interest income	61		273		122

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



	2014				2013
(Thousands of Dollars)	Accounts Receivable		Accounts Payable		Accounts Receivable		Accounts Payable
NSP-Minnesota	$	—	$	6,706	$	18,065	$	—
NSP-Wisconsin	22		—		8		—
SPS	5,803		—		1,056		—
Other subsidiaries of Xcel Energy Inc.	45,017		40,030		7		45,902
	$	50,842	$	46,736	$	19,136	$	45,902