Segment Information

6 Months Ended

Jun. 30, 2024

Segment Reporting [Abstract]

Segment Information

Segment Information - MGE Energy and MGE.

MGE Energy operates in the following business segments: electric utility, gas utility, nonregulated energy, transmission investment, and all other. See the 2023 Annual Report on Form 10-K for additional discussion of each of these segments.

(In thousands) MGE Energy	Electric			Gas		Non-Regulated Energy		Transmission Investment		All Others			Consolidation/ Elimination			Consolidated Total
Three Months Ended June 30, 2024
Operating revenues	$	120,383		$	25,116	$	214	$	—	$	—		$	—		$	145,713
Interdepartmental revenues		(55	)		2,172		10,946		—		—			(13,063	)		—
Total operating revenues		120,328			27,288		11,160		—		—			(13,063	)		145,713
Equity in earnings of investments		—			—		—		2,780		—			—			2,780
Net income		15,661			50		6,043		2,022		18			—			23,794
Three Months Ended June 30, 2023
Operating revenues	$	121,492		$	26,291	$	215	$	—	$	—		$	—		$	147,998
Interdepartmental revenues		193			2,770		10,195		—		—			(13,158	)		—
Total operating revenues		121,685			29,061		10,410		—		—			(13,158	)		147,998
Equity in earnings of investments		—			—		—		2,629		—			—			2,629
Net income (loss)		21,556			581		5,470		1,914		(840	)		—			28,681
Six Months Ended June 30, 2024
Operating revenues	$	236,508		$	100,285	$	256	$	—	$	—		$	—		$	337,049
Interdepartmental revenues		(109	)		7,383		21,773		—		—			(29,047	)		—
Total operating revenues		236,399			107,668		22,029		—		—			(29,047	)		337,049
Equity in earnings of investments		—			—		—		5,526		—			—			5,526
Net income (loss)		31,424			10,664		11,866		4,018		(364	)		—			57,608
Six Months Ended June 30, 2023
Operating revenues	$	238,736		$	126,253	$	262	$	—	$	—		$	—		$	365,251
Interdepartmental revenues		141			9,431		20,745		—		—			(30,317	)		—
Total operating revenues		238,877			135,684		21,007		—		—			(30,317	)		365,251
Equity in earnings of investments		—			—		—		5,240		—			—			5,240
Net income (loss)		34,870			11,340		11,040		3,813		(1,304	)		—			59,759

(In thousands) MGE	Electric			Gas		Non-Regulated Energy		Consolidation/ Elimination			Consolidated Total
Three Months Ended June 30, 2024
Operating revenues	$	120,383		$	25,116	$	214	$	—		$	145,713
Interdepartmental revenues		(55	)		2,172		10,946		(13,063	)		—
Total operating revenues		120,328			27,288		11,160		(13,063	)		145,713
Net income attributable to MGE		15,661			50		6,043		(5,766	)		15,988
Three Months Ended June 30, 2023
Operating revenues	$	121,492		$	26,291	$	215	$	—		$	147,998
Interdepartmental revenues		193			2,770		10,195		(13,158	)		—
Total operating revenues		121,685			29,061		10,410		(13,158	)		147,998
Net income attributable to MGE		21,556			581		5,470		(5,375	)		22,232
Six Months Ended June 30, 2024
Operating revenues	$	236,508		$	100,285	$	256	$	—		$	337,049
Interdepartmental revenues		(109	)		7,383		21,773		(29,047	)		—
Total operating revenues		236,399			107,668		22,029		(29,047	)		337,049
Net income attributable to MGE		31,424			10,664		11,866		(11,363	)		42,591
Six Months Ended June 30, 2023
Operating revenues	$	238,736		$	126,253	$	262	$	—		$	365,251
Interdepartmental revenues		141			9,431		20,745		(30,317	)		—
Total operating revenues		238,877			135,684		21,007		(30,317	)		365,251
Net income attributable to MGE		34,870			11,340		11,040		(10,895	)		46,355