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v3.25.1

BUSINESS SEGMENTS - By Segment (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Segment Reporting Information [Line Items] |  |  |
Contracts with Customers – Utility | $ 332.8 | $ 338.3 |
Contracts with Customers – Non-utility | 65.9 | 63.7 |
Other – Non-utility | 1.5 | 1.3 |
Total Operating Revenue | 400.2 | 403.3 |
Transmission Services – Utility | 19.0 | 22.7 |
Cost of Sales – Non-utility | 24.9 | 24.4 |
Operating and Maintenance | 93.0 | 91.7 |
Depreciation and Amortization | 69.7 | 65.0 |
Taxes Other than Income Taxes | 17.6 | 18.7 |
Net Income Attributable to ALLETE | 56.1 | 50.7 |
Interest Expense | (21.4) | (20.4) |
Equity Earnings | 6.0 | 5.5 |
Income Tax Expense (Benefit) | 7.5 | 4.0 |
Assets | 6,866.3 | 6,604.6 | $ 6,754.3
Equity Investment | 344.0 | 333.1 | 340.1
Capital Expenditures | 145.2 | 51.8 |
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Contracts with Customers – Utility | 332.8 | 338.3 |
Contracts with Customers – Non-utility | 36.4 | 34.8 |
Other – Non-utility | 1.5 | 1.3 |
Total Operating Revenue | 370.7 | 374.4 |
Fuel, Purchased Power and Gas – Utility | 123.3 | 133.7 |
Transmission Services – Utility | 19.0 | 22.7 |
Cost of Sales – Non-utility | 5.3 | 5.7 |
Operating and Maintenance | 87.9 | 86.8 |
Depreciation and Amortization | 65.8 | 61.0 |
Taxes Other than Income Taxes | 17.0 | 18.3 |
Other Segment Items | 2.6 | 5.8 |
Net Income Attributable to ALLETE | 55.0 | 52.0 |
Interest Expense | (17.8) | (17.9) |
Equity Earnings | 6.5 | 5.7 |
Income Tax Expense (Benefit) | 6.8 | 0.9 |
Assets | 6,375.8 | 6,221.0 |
Equity Investment | 199.5 | 182.7 |
Capital Expenditures | 143.8 | 49.7 |
Corporate and Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Contracts with Customers – Utility | 0.0 | 0.0 |
Contracts with Customers – Non-utility | 29.5 | 28.9 |
Other – Non-utility | 0.0 | 0.0 |
Total Operating Revenue | 29.5 | 28.9 |
Depreciation and Amortization | 3.9 | 4.0 |
Net Income Attributable to ALLETE | 1.1 | (1.3) |
Interest Expense | (3.6) | (2.5) |
Equity Earnings | (0.5) | (0.2) |
Income Tax Expense (Benefit) | 0.7 | 3.1 |
Assets | 490.5 | 383.6 |
Equity Investment | 144.5 | 150.4 |
Capital Expenditures | 1.4 | 2.1 |
Regulated Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Operating Revenue | 332.8 | 338.3 |
Net Income Attributable to ALLETE | 38.4 | 44.2 |
Assets | 4,560.2 |  | 4,489.4
Regulated Operations | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Contracts with Customers – Utility | 332.8 | 338.3 |
Contracts with Customers – Non-utility | 0.0 | 0.0 |
Other – Non-utility | 0.0 | 0.0 |
Total Operating Revenue | 332.8 | 338.3 |
Fuel, Purchased Power and Gas – Utility | 123.3 | 133.7 |
Transmission Services – Utility | 19.0 | 22.7 |
Cost of Sales – Non-utility | 0.0 | 0.0 |
Operating and Maintenance | 68.7 | 66.8 |
Depreciation and Amortization | 50.7 | 46.4 |
Taxes Other than Income Taxes | 14.3 | 15.7 |
Other Segment Items | (18.4) | (8.8) |
Net Income Attributable to ALLETE | 38.4 | 44.2 |
Interest Expense | (17.1) | (16.0) |
Equity Earnings | 6.5 | 5.7 |
Income Tax Expense (Benefit) | 10.2 | 4.9 |
Assets | 4,560.2 | 4,345.1 |
Equity Investment | 199.5 | 182.7 |
Capital Expenditures | 134.3 | 49.5 |
ALLETE Clean Energy |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Operating Revenue | 16.5 | 19.1 |
Net Income Attributable to ALLETE | 7.4 | 3.8 |
Assets | 1,464.2 |  | 1,477.4
ALLETE Clean Energy | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Contracts with Customers – Utility | 0.0 | 0.0 |
Contracts with Customers – Non-utility | 15.0 | 17.8 |
Other – Non-utility | 1.5 | 1.3 |
Total Operating Revenue | 16.5 | 19.1 |
Fuel, Purchased Power and Gas – Utility | 0.0 | 0.0 |
Transmission Services – Utility | 0.0 | 0.0 |
Cost of Sales – Non-utility | 0.0 | 0.0 |
Operating and Maintenance | 13.9 | 13.5 |
Depreciation and Amortization | 14.4 | 14.1 |
Taxes Other than Income Taxes | 2.7 | 2.6 |
Other Segment Items | 21.9 | 14.9 |
Net Income Attributable to ALLETE | 7.4 | 3.8 |
Interest Expense | 0.0 | (0.1) |
Equity Earnings | 0.0 | 0.0 |
Income Tax Expense (Benefit) | (3.5) | (5.5) |
Assets | 1,464.2 | 1,580.0 |
Equity Investment | 0.0 | 0.0 |
Capital Expenditures | 2.1 | 0.2 |
New Energy |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Operating Revenue | 21.4 | 17.0 |
Net Income Attributable to ALLETE | 9.2 | 4.0 |
Assets | 351.4 |  | $ 335.7
New Energy | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Contracts with Customers – Utility | 0.0 | 0.0 |
Contracts with Customers – Non-utility | 21.4 | 17.0 |
Other – Non-utility | 0.0 | 0.0 |
Total Operating Revenue | 21.4 | 17.0 |
Fuel, Purchased Power and Gas – Utility | 0.0 | 0.0 |
Transmission Services – Utility | 0.0 | 0.0 |
Cost of Sales – Non-utility | 5.3 | 5.7 |
Operating and Maintenance | 5.3 | 6.5 |
Depreciation and Amortization | 0.7 | 0.5 |
Taxes Other than Income Taxes | 0.0 | 0.0 |
Other Segment Items | (0.9) | (0.3) |
Net Income Attributable to ALLETE | 9.2 | 4.0 |
Interest Expense | (0.7) | (1.8) |
Equity Earnings | 0.0 | 0.0 |
Income Tax Expense (Benefit) | 0.1 | 1.5 |
Assets | 351.4 | 295.9 |
Equity Investment | 0.0 | 0.0 |
Capital Expenditures | $ 7.4 | $ 0.0 |

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