Consolidated Balance Sheet (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current Assets
Cash and Cash Equivalents	$ 145.8	$ 97.3
Accounts Receivable (Less Allowance of $1.1 and $1.1)	103.0	96.3
Inventories	80.5	59.3
Prepayments and Other	82.0	35.1
Deferred Income Taxes	7.5	19.0
Total Current Assets	418.8	307.0
Property, Plant and Equipment - Net	3,286.4	2,576.5
Regulatory Assets	357.3	263.8
Investment in ATC	121.1	114.6
Other Investments	114.4	146.3
Other Non-Current Assets	62.8	68.6
Total Assets	4,360.8	3,476.8
Current Liabilities
Accounts Payable	134.1	99.9
Accrued Taxes	38.7	34.8
Accrued Interest	18.0	15.7
Long-Term Debt Due Within One Year	100.7	27.2
Notes Payable	3.7	0
Other	120.8	52.6
Total Current Liabilities	416.0	230.2
Long-Term Debt	1,272.8	1,083.0
Deferred Income Taxes	510.7	479.1
Regulatory Liabilities	94.2	81.0
Defined Benefit Pension and Other Postretirement Benefit Plans	190.9	133.4
Other Non-Current Liabilities	265.0	127.2
Total Liabilities	2,749.6	2,133.9
Commitments and Contingencies (Note 12)
Equity
Common Stock Without Par Value, 80.0 Shares Authorized, 45.9 and 41.4 Shares Outstanding	1,107.6	885.2
Unearned ESOP Shares	(7.2)	(14.3)
Accumulated Other Comprehensive Loss	(21.1)	(17.1)
Retained Earnings	530.1	489.1
Total ALLETE Equity	1,609.4	1,342.9
Non-Controlling Interest in Subsidiaries	1.8	0
Total Equity	1,611.2	1,342.9
Total Liabilities and Equity	$ 4,360.8	$ 3,476.8