Related Party Transactions

12 Months Ended

Dec. 31, 2014

Xcel Energy Services Inc. provides management, administrative and other services for the subsidiaries of Xcel Energy Inc., including PSCo. The services are provided and billed to each subsidiary in accordance with service agreements executed by each subsidiary. PSCo uses services provided by Xcel Energy Services Inc. whenever possible. Costs are charged directly to the subsidiary and are allocated if they cannot be directly assigned.

Xcel Energy Inc., NSP-Minnesota, PSCo and SPS have established a utility money pool arrangement. See Note 4 for further discussion.

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

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References+ Details