Business Segments

3 Months Ended

Mar. 31, 2015

Business Segments [Abstract]

Business Segments [Text Block]

BUSINESS SEGMENTS

Regulated Operations includes our regulated utilities, Minnesota Power and SWL&P, as well as our investment in ATC, a Wisconsin-based regulated utility that owns and maintains electric transmission assets in parts of Wisconsin, Michigan, Minnesota and Illinois. Investments and Other is comprised primarily of our Energy Infrastructure and Related Services businesses: ALLETE Clean Energy, our business aimed at acquiring or developing capital projects that create energy solutions by way of wind, solar, biomass, hydro, natural gas, shale resources, clean coal technology and other emerging energy innovations, U.S. Water Services, our integrated water management company which was acquired on February 10, 2015, and BNI Coal, our coal mining operations in North Dakota. Investments and Other also includes ALLETE Properties, our Florida real estate investment, and other business development and corporate expenditures, unallocated interest expense, a small amount of non-rate base generation, approximately 5,000 acres of land in Minnesota, and earnings on cash and investments. Future acquisitions or growth may impact segment reporting.

	Consolidated			Regulated Operations			Investments and Other
Millions
Three Months Ended March 31, 2015
Operating Revenue		$320.0			$262.8			$57.2
Fuel and Purchased Power	86.0			86.0			—
Transmission Services	14.9			14.9			—
Cost of Sales	31.2			4.5			26.7
Operating and Maintenance	79.7			58.7			21.0
Depreciation and Amortization	39.0			32.1			6.9
Taxes Other than Income Taxes	12.8			11.6			1.2
Operating Income	56.4			55.0			1.4
Interest Expense	(15.1		)	(13.0		)	(2.1		)
Equity Earnings in ATC	3.9			3.9			—
Other Income	1.1			0.9			0.2
Income (Loss) Before Non-Controlling Interest and Income Taxes	46.3			46.8			(0.5		)
Income Tax Expense	6.2			5.4			0.8
Net Income (Loss)	40.1			41.4			(1.3		)
Less: Non-Controlling Interest in Subsidiaries	0.2			—			0.2
Net Income (Loss) Attributable to ALLETE		$39.9			$41.4		$(1.5)
As of March 31, 2015
Total Assets		$4,580.1			$3,748.4			$831.7
Property, Plant and Equipment – Net		$3,319.2			$3,025.3			$293.9
Accumulated Depreciation		$1,367.0			$1,286.9			$80.1
Capital Additions		$57.3			$54.9			$2.4

NOTE 2.  BUSINESS SEGMENTS (Continued)

	Consolidated			Regulated Operations			Investments and Other
Millions
Three Months Ended March 31, 2014
Operating Revenue		$296.5			$264.2			$32.3
Fuel and Purchased Power	96.2			96.2			—
Transmission Services	10.8			10.8			—
Cost of Sales	23.5			8.7			14.8
Operating and Maintenance	74.3			60.5			13.8
Depreciation and Amortization	32.2			28.8			3.4
Taxes Other than Income Taxes	11.2			10.2			1.0
Operating Income (Loss)	48.3			49.0			(0.7		)
Interest Expense	(12.8		)	(11.5		)	(1.3		)
Equity Earnings in ATC	5.1			5.1			—
Other Income	2.0			1.8			0.2
Income (Loss) Before Non-Controlling Interest and Income Taxes	42.6			44.4			(1.8		)
Income Tax Expense (Benefit)	8.8			10.5			(1.7		)
Net Income (Loss)	33.8			33.9			(0.1		)
Less: Non-Controlling Interest in Subsidiaries	0.3			—			0.3
Net Income (Loss) Attributable to ALLETE		$33.5			$33.9		$(0.4)
As of March 31, 2014
Total Assets		$3,749.2			$3,335.5			$413.7
Property, Plant and Equipment – Net		$2,905.1			$2,671.3			$233.8
Accumulated Depreciation		$1,266.7			$1,202.9			$63.8
Capital Additions		$195.2			$193.5			$1.7