Equity Investments (Tables)

9 Months Ended

Sep. 30, 2022

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, 2021	$154.5
Cash Investments	5.1
Equity in ATC Earnings	13.8
Distributed ATC Earnings	(13.1)
Amortization of the Remeasurement of Deferred Income Taxes	1.0
Equity Investment Balance as of September 30, 2022	$161.3

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, 2021	$163.5
Equity in Nobles 2 Earnings (a)	(0.7)
Distributed Nobles 2 Earnings	(3.8)
Equity Investment Balance as of September 30, 2022	$159.0

(a)The Company also recorded net loss attributable to non-controlling interest of $7.5 million related to its investment in Nobles 2.