Related Parties (Tables)

12 Months Ended

Dec. 31, 2019

Our balance sheets included the following receivables and payables related to transactions entered into with ATC:

The following table shows activity associated with our related party transactions for the years ended December 31:



(in millions)	2019		2018			2017
Lease agreements
Lease payments to We Power ⁽¹⁾	$	393.2	$	373.7		$	420.5
CWIP billed to We Power	35.1		39.5			57.3
Transactions with WBS
Billings to WBS ⁽²⁾	102.6		61.5			255.7
Billings from WBS ⁽²⁾	205.3		243.4		⁽⁶⁾	215.4
Transactions with WPS
Natural gas related purchases from WPS ⁽³⁾	2.0		1.9			1.6
Billings to WPS ⁽²⁾	13.2		17.8			28.2
Billings from WPS ⁽²⁾	9.3		10.9			4.5
Transactions with WG
Natural gas related purchases from WG ⁽³⁾	5.4		5.3			5.3
Billings to WG ⁽²⁾	41.1		59.0		⁽⁷⁾	64.0
Billings from WG ⁽²⁾	30.1		32.6			23.1
Transactions with UMERC
Electric sales to UMERC ⁽⁴⁾	7.9		29.6			30.8
Billings to UMERC ⁽²⁾	10.5		15.8			125.5
Transactions with Bluewater ⁽⁵⁾
Storage service fees	14.2		15.0			2.7
Natural gas related sales to Bluewater ⁽³⁾	2.3		—			—
Transactions with ATC
Charges to ATC for services and construction	14.9		13.9			10.9
Charges from ATC for network transmission services	230.6		232.0			241.4
Refund from ATC related to a FERC audit	—		15.4			—
Refund from ATC per FERC ROE order	—		—			19.4


⁽¹⁾	We make lease payments to We Power, another subsidiary of WEC Energy Group, for PWGS Units 1 and 2 and ERGS Units 1 and 2. Lease payments were reduced in 2018 as a result of tax savings related to the Tax Legislation.


⁽²⁾	Includes amounts billed for services, pass through costs, asset and liability transfers, and other items in accordance with the approved AIAs. As required by FERC regulations for centralized service companies, WBS renders services at cost. In addition, all services provided by any regulated subsidiary to another regulated subsidiary or WBS are priced at cost.


⁽³⁾	Includes amounts related to the purchase or sale of natural gas and/or pipeline capacity.


⁽⁴⁾	On March 31, 2019, UMERC's new natural gas-fired generation in the Upper Peninsula of Michigan began commercial operation. Prior to its generating units achieving commercial operation, UMERC purchased a portion of its power from us. See below for more information on UMERC.


⁽⁵⁾	WEC Energy Group's acquisition of Bluewater was completed on June 30, 2017. See below for more information.


⁽⁶⁾	Includes $10.0 million for the transfer of certain benefit-related liabilities to WBS and $59.8 million for the transfer of certain software assets from WBS.


⁽⁷⁾	Includes $5.3 million for the transfer of certain software assets to WG.