Segment Information

12 Months Ended

Dec. 31, 2016

Segment Information - MGE Energy and MGE.

The electric utility business purchases, generates and distributes electricity, and contracts for transmission service. The gas utility business purchases and distributes natural gas and contracts for the transportation of natural gas. Both the electric and gas segments operate through MGE Energy's principal subsidiary, MGE.

The nonregulated energy operations are conducted through MGE Energy's subsidiaries: MGE Power, MGE Power Elm Road, and MGE Power West Campus. These subsidiaries own and lease electric generating capacity to assist MGE. MGE Power Elm Road has an ownership interest in two coal-fired generating units in Oak Creek, Wisconsin, which are leased to MGE, and MGE Power West Campus owns a controlling interest in the electric generation plant of a natural gas-fired cogeneration facility on the UW campus. MGE Power West Campus's portion is also leased to MGE.

The transmission investment segment invests, through MGE Transco, in ATC, a company that provides electric transmission services primarily in Wisconsin and MGEE Transco, in ATC Holdco, a company formed to pursue electric transmission development and investments outside of Wisconsin. See Footnote 4 for further discussion.

The "All Others" segment includes: corporate, CWDC, MAGAEL, MGE State Energy Services, MGE Services, and NGV Fueling Services. These entities' operations consist of investing in companies and property which relate to the regulated operations, financing the regulated operations, or owning and operating natural gas compression equipment.

General corporate expenses include the cost of executive management, corporate accounting and finance, information technology, risk management, human resources and legal functions, and employee benefits that are allocated to electric and gas segments based on formulas prescribed by the PSCW. Identifiable assets are those used in MGE's operations in each segment. Assets not allocated consist primarily of cash and cash equivalents, restricted cash, investments, other accounts receivable, and prepaid assets.

Sales between our electric and gas segments are based on PSCW approved tariffed rates. Additionally, intersegment operations related to the leasing arrangement between our electric segment and MGE Power Elm Road/MGE Power West Campus are based on terms previously approved by the PSCW. Consistent with internal reporting, management has presented the direct financing capital leases between MGE and MGE Power Elm Road/MGE Power West Campus based on actual lease payments included in rates. Lease payments made by MGE to MGE Power Elm Road and MGE Power West Campus are shown as operating expenses. The lease payments received by MGE Power Elm Road and MGE Power West Campus from MGE are shown as lease income in interdepartmental revenues. The depreciation expense associated with the Elm Road Units and WCCF is reflected in the nonregulated energy segment.

The following table shows segment information for MGE Energy's and MGE's operations:

(In thousands)MGE Energy		Electric		Gas		Non-Regulated Energy		Transmission Investment		All Others		Consolidation/ Elimination Entries		Consolidated Total
Year Ended December 31, 2016
Operating revenues	$	409,006	$	134,543	$	1,196	$	-	$	-	$	-	$	544,745
Interdepartmental revenues		1,912		21,378		43,930		-		-		(67,220)		-
Total operating revenues		410,918		155,921		45,126		-		-		(67,220)		544,745
Depreciation and amortization		(29,122)		(8,128)		(7,372)		-		(24)		-		(44,646)
Other operating expenses		(310,941)		(127,083)		(155)		(17)		(895)		67,220		(371,871)
Operating income (loss)		70,855		20,710		37,599		(17)		(919)		-		128,228
Other income, net		960		30		-		8,429		292		-		9,711
Interest (expense) income, net		(11,147)		(3,223)		(5,768)		-		272		-		(19,866)
Income (loss) before taxes		60,668		17,517		31,831		8,412		(355)		-		118,073
Income tax (provision) benefit		(20,115)		(6,894)		(12,775)		(2,836)		107		-		(42,513)
Net income (loss)	$	40,553	$	10,623	$	19,056	$	5,576	$	(248)	$	-	$	75,560

Year Ended December 31, 2015
Operating revenues	$	412,528	$	143,737	$	7,763	$	-	$	-	$	-	$	564,028
Interdepartmental revenues		513		11,780		39,435		-		-		(51,728)		-
Total operating revenues		413,041		155,517		47,198		-		-		(51,728)		564,028
Depreciation and amortization		(29,945)		(6,758)		(7,475)		-		(47)		-		(44,225)
Other operating expenses		(318,001)		(128,241)		(158)		(19)		(857)		51,728		(395,548)
Operating income (loss)		65,095		20,518		39,565		(19)		(904)		-		124,255
Other (deductions) income, net		400		(33)		-		7,728		518		-		8,613
Interest (expense) income, net		(11,187)		(3,203)		(5,993)		-		221		-		(20,162)
Income (loss) before taxes		54,308		17,282		33,572		7,709		(165)		-		112,706
Income tax (provision) benefit		(17,915)		(6,915)		(13,474)		(3,102)		43		-		(41,363)
Net income (loss)	$	36,393	$	10,367	$	20,098	$	4,607	$	(122)	$	-	$	71,343

Year Ended December 31, 2014
Operating revenues	$	394,849	$	221,720	$	3,283	$	-	$	-	$	-	$	619,852
Interdepartmental revenues		509		8,366		42,692		-		-		(51,567)		-
Total operating revenues		395,358		230,086		45,975		-		-		(51,567)		619,852
Depreciation and amortization		(26,933)		(6,308)		(7,407)		-		(47)		-		(40,695)
Other operating expenses		(297,409)		(194,203)		(139)		-		(875)		51,567		(441,059)
Operating income (loss)		71,016		29,575		38,429		-		(922)		-		138,098
Other (deductions) income, net		2,847		(86)		-		9,150		(1,832)		-		10,079
Interest (expense) income, net		(10,410)		(3,229)		(6,208)		-		174		-		(19,673)
Income (loss) before taxes		63,453		26,260		32,221		9,150		(2,580)		-		128,504
Income tax (provision) benefit		(22,070)		(10,480)		(12,932)		(3,664)		961		-		(48,185)
Net income (loss)	$	41,383	$	15,780	$	19,289	$	5,486	$	(1,619)	$	-	$	80,319

(In thousands)MGE		Electric		Gas		Non-Regulated Energy		Transmission Investment^(b)		Consolidation/ Elimination Entries		Consolidated Total
Year Ended December 31, 2016
Operating revenues	$	409,030	$	134,572	$	1,196	$	-	$	-	$	544,798
Interdepartmental revenues		1,888		21,349		43,930		-		(67,167)		-
Total operating revenues		410,918		155,921		45,126		-		(67,167)		544,798
Depreciation and amortization		(29,122)		(8,128)		(7,372)		-		-		(44,622)
Other operating expenses^(a)		(330,924)		(133,940)		(12,930)		-		67,167		(410,627)
Operating income^(a)		50,872		13,853		24,824		-		-		89,549
Other (deductions) income, net^(a)		828		(7)		-		4,360		-		5,181
Interest expense, net		(11,147)		(3,223)		(5,768)		-		-		(20,138)
Net income		40,553		10,623		19,056		4,360		-		74,592
Less: Net income attributable to
noncontrolling interest, net of tax		-		-		-		-		(23,358)		(23,358)
Net income attributable to MGE	$	40,553	$	10,623	$	19,056	$	4,360	$	(23,358)	$	51,234

Year Ended December 31, 2015
Operating revenues	$	412,550	$	143,752	$	7,763	$	-	$	-	$	564,065
Interdepartmental revenues		491		11,765		39,435		-		(51,691)		-
Total operating revenues		413,041		155,517		47,198		-		(51,691)		564,065
Depreciation and amortization		(29,945)		(6,758)		(7,475)		-		-		(44,178)
Other operating expenses^(a)		(335,803)		(135,124)		(13,632)		(19)		51,691		(432,887)
Operating income (loss)^(a)		47,293		13,635		26,091		(19)		-		87,000
Other (deductions) income, net^(a)		287		(65)		-		4,626		-		4,848
Interest expense, net		(11,187)		(3,203)		(5,993)		-		-		(20,383)
Net income		36,393		10,367		20,098		4,607		-		71,465
Less: net income attributable to
noncontrolling interest, net of tax		-		-		-		-		(26,097)		(26,097)
Net income attributable to MGE	$	36,393	$	10,367	$	20,098	$	4,607	$	(26,097)	$	45,368

Year Ended December 31, 2014
Operating revenues	$	394,871	$	221,741	$	3,283	$	-	$	-	$	619,895
Interdepartmental revenues		487		8,345		42,692		-		(51,524)		-
Total operating revenues		395,358		230,086		45,975		-		(51,524)		619,895
Depreciation and amortization		(26,933)		(6,308)		(7,407)		-		-		(40,648)
Other operating expenses^(a)		(319,175)		(204,597)		(13,071)		-		51,524		(485,319)
Operating income^(a)		49,250		19,181		25,497		-		-		93,928
Other (deductions) income, net^(a)		2,543		(172)		-		5,486		-		7,857
Interest expense, net		(10,410)		(3,229)		(6,208)		-		-		(19,847)
Net income		41,383		15,780		19,289		5,486		-		81,938
Less: Net income attributable to
noncontrolling interest, net of tax		-		-		-		-		(26,310)		(26,310)
Net income attributable to MGE	$	41,383	$	15,780	$	19,289	$	5,486	$	(26,310)	$	55,628

(a) Amounts are shown net of the related tax expense, consistent with the presentation on the MGE Consolidated Statements of Income.
(b) As of July 31, 2016, MGE no longer consolidates MGE Energy's proportionate share of equity earnings in MGE Transco.
See Footnote 4 for additional information.

The following table shows segment information for MGE Energy's and MGE's assets and capital expenditures:

		Utility						Consolidated
(In thousands) MGE Energy		Electric		Gas		Assets not Allocated		Non-regulated Energy		Transmission Investment		All Others		Consolidation/ Elimination Entries		Total
Assets:
December 31, 2016	$	1,021,905	$	318,603	$	27,338	$	271,277	$	74,535	$	465,202	$	(377,800)	$	1,801,060
December 31, 2015^(c)		974,235		298,435		49,753		277,858		69,470		434,868		(378,216)		1,726,403
December 31, 2014^(c)		945,790		306,106		41,124		280,542		67,697		438,898		(390,636)		1,689,521
Capital Expenditures:
Year ended Dec. 31, 2016	$	50,699	$	29,136	$	-	$	3,824	$	-	$	-	$	-	$	83,659
Year ended Dec. 31, 2015		49,370		18,787		-		3,873		-		-		-		72,030
Year ended Dec. 31, 2014		68,067		22,104		-		2,505		-		-		-		92,676

		Utility						Consolidated
(In thousands)MGE		Electric		Gas		Assets not Allocated		Non-regulated Energy		Transmission Investment^(d)		Consolidation/ Elimination Entries		Total
Assets:
December 31, 2016	$	1,021,905	$	318,603	$	27,338	$	271,227	$	-	$	(221)	$	1,638,852
December 31, 2015^(c)		974,235		298,435		49,753		277,808		69,470		(187)		1,669,514
December 31, 2014^(c)		945,790		306,106		41,124		280,492		67,697		(6,521)		1,634,688
Capital Expenditures:
Year ended Dec. 31, 2016	$	50,699	$	29,136	$	-	$	3,824	$	-	$	-	$	83,659
Year ended Dec. 31, 2015		49,370		18,787		-		3,873		-		-		72,030
Year ended Dec. 31, 2014		68,067		22,104		-		2,505		-		-		92,676

(c) Reflects retrospective application of new accounting pronouncement related to debt issuance costs, see Footnote 19 for additional information.
(d) In December 2016, MGE's ownership interest in MGE Transco was transferred to MGE Energy, see Footnote 4 for additional information.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8971-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8595-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8984-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8538-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 29
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8864-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599

+ Details