INVESTMENT IN TRANSMISSION AFFILIATES (Tables)

3 Months Ended

Mar. 31, 2022

Investment in transmission affiliates

Schedule of changes to our investments in transmission affiliates

The following tables provide a reconciliation of the changes in our investments in ATC and ATC Holdco:

	Three Months Ended March 31, 2022
(in millions)	ATC		ATC Holdco		Total
Balance at beginning of period	$	1,766.9	$	22.5	$	1,789.4
Add: Earnings from equity method investment	41.0		0.7		41.7
Add: Capital contributions	21.1		—		21.1
Less: Distributions	34.0		—		34.0
Balance at end of period	$	1,795.0	$	23.2	$	1,818.2
	Three Months Ended March 31, 2021
(in millions)	ATC		ATC Holdco		Total
Balance at beginning of period	$	1,733.5	$	30.8	$	1,764.3
Add: Earnings from equity method investment	41.7		0.9		42.6
Less: Distributions	33.4		—		33.4
Add: Other	0.1		—		0.1
Balance at end of period	$	1,741.9	$	31.7	$	1,773.6

ATC

Investment in transmission affiliates

Schedule of significant related party transactions with ATC

The following table summarizes our significant related party transactions with ATC:

	Three Months Ended March 31
(in millions)	2022		2021
Charges to ATC for services and construction	$	6.2	$	6.0
Charges from ATC for network transmission services	91.1		92.6

Schedule of receivables and payables with ATC

Our balance sheets included the following receivables and payables for services provided to or received from ATC:

(in millions)	March 31, 2022		December 31, 2021
Accounts receivable for services provided to ATC	$	2.3	$	2.0
Accounts payable for services received from ATC	30.5		30.2
Amounts due from ATC for transmission infrastructure upgrades (1)	15.1		13.0

(1)The transmission infrastructure upgrades were primarily related to WE's and WPS's construction of their new solar projects, Badger Hollow II and Badger Hollow I, respectively.

Schedule of summarized income statement data for ATC

Summarized financial data for ATC is included in the tables below:

	Three Months Ended March 31
(in millions)	2022		2021
Income statement data
Operating revenues	$	191.0	$	188.7
Operating expenses	95.5		95.1
Other expense, net	28.0		28.5
Net income	$	67.5	$	65.1

Schedule of summarized balance sheet data for ATC

(in millions)	March 31, 2022		December 31, 2021
Balance sheet data
Current assets	$	95.5	$	89.8
Noncurrent assets	5,706.8		5,628.1
Total assets	$	5,802.3	$	5,717.9
Current liabilities	$	421.0	$	436.9
Long-term debt	2,562.3		2,513.0
Other noncurrent liabilities	424.7		422.0
Members' equity	2,394.3		2,346.0
Total liabilities and members' equity	$	5,802.3	$	5,717.9