Equity Investments (Tables)

9 Months Ended

Sep. 30, 2021

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, 2020	$149.0
Equity in ATC Earnings	15.8
Distributed ATC Earnings	(12.8)
Amortization of the Remeasurement of Deferred Income Taxes	1.0
Equity Investment Balance as of September 30, 2021	$153.0

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, 2020	$152.2
Cash Investments	17.4
Equity in Nobles 2 Earnings (a)	(1.5)
Distributed Nobles 2 Earnings	(3.3)
Equity Investment Balance as of September 30, 2021	$164.8

(a)The Company also recorded net loss attributable to non-controlling interest of $4.4 million related to its investment in Nobles 2.