Equity Investments (Tables)

6 Months Ended

Jun. 30, 2023

ATC [Member]

Investment in ATC [Line Items]

Equity Method Investments (Table Text Block)

ALLETE’s Investment in ATC
Millions
Equity Investment Balance as of December 31, 2022	$165.4
Cash Investments	4.3
Equity in ATC Earnings	11.6
Distributed ATC Earnings	(9.3)
Amortization of the Remeasurement of Deferred Income Taxes	0.7
Equity Investment Balance as of June 30, 2023	$172.7

Nobles 2 [Member]

Investment in ATC [Line Items]

Equity Method Investments (Table Text Block)

ALLETE’s Investment in Nobles 2
Millions
Equity Investment Balance as of December 31, 2022	$157.3
Equity in Nobles 2 Earnings (a)	(0.2)
Distributed Nobles 2 Earnings	(2.3)
Equity Investment Balance as of June 30, 2023	$154.8

(a)The Company also recorded earnings from net loss attributable to non-controlling interest of $5.9 million related to its investment in Nobles 2.