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BUSINESS SEGMENTS
 9 Months Ended
Sep. 30, 2024
Segment Reporting [Abstract]  
BUSINESS SEGMENTS BUSINESS SEGMENTS
We present two reportable segments: Regulated Operations and ALLETE Clean Energy. We measure performance of our operations through budgeting and monitoring of contributions to consolidated net income by each business segment.

Regulated Operations includes three operating segments which consist of our regulated utilities, Minnesota Power and SWL&P, as well as our investment in ATC. ALLETE Clean Energy is our business focused on developing, acquiring and operating clean and renewable energy projects. We also present Corporate and Other which includes New Energy, a renewable energy development company, BNI Energy, our coal mining operations in North Dakota, ALLETE Properties, our legacy Florida real estate investment, along with our investment in Nobles 2, South Shore Energy, our non-rate regulated, Wisconsin subsidiary developing NTEC, other business development and corporate expenditures, unallocated interest expense, a small amount of non-rate base generation, land holdings in Minnesota, and earnings on cash and investments.
NOTE 10. BUSINESS SEGMENTS (Continued)

Quarter EndedNine Months Ended
September 30,September 30,
 2024202320242023
Millions
Operating Revenue
Regulated Operations
Residential$41.9 $37.9 $130.5 $123.3 
Commercial49.5 49.2 143.0 140.9 
Municipal9.2 8.7 25.6 25.2 
Industrial149.8 154.3 456.1 439.4 
Other Power Suppliers32.0 31.0 102.4 103.2 
Other28.1 33.2 71.0 87.1 
Total Regulated Operations310.5 314.3 928.6 919.1 
ALLETE Clean Energy
Long-term PSA9.9 12.9 42.2 44.5 
Sale of Wind Energy Facilities22.9 — 22.9 348.4 
Other1.3 1.3 3.8 3.9 
Total ALLETE Clean Energy34.1 14.2 68.9 396.8 
Corporate and Other
Long-term Contract26.7 24.6 79.4 74.0 
Sale of Renewable Development Projects29.2 20.8 68.7 73.2 
Other6.7 4.9 19.4 14.0 
Total Corporate and Other62.6 50.3 167.5 161.2 
Total Operating Revenue$407.2 $378.8 $1,165.0 $1,477.1 
Net Income (Loss) Attributable to ALLETE  
Regulated Operations$34.0 $34.0 $111.9 $112.4 
ALLETE Clean Energy (a)
3.9 54.8 10.1 66.4 
Corporate and Other (b)
7.1 (2.9)6.7 16.8 
Total Net Income Attributable to ALLETE$45.0 $85.9 $128.7 $195.6 
(a)Net income in 2023 includes a $44.3 million after-tax gain recognized for a favorable arbitration ruling. (See Note 6. Commitments, Guarantees and Contingencies.)
(b)Net income in 2023 includes a $3.8 million after-tax expense recognized for the consolidated income tax impact of the gain on arbitration. (See Note 6. Commitments, Guarantees and Contingencies.)
September 30,
2024		December 31,
2023
Millions
Assets
Regulated Operations $4,410.3 $4,335.0 
ALLETE Clean Energy 1,581.6 1,594.1 
Corporate and Other745.3 727.3 
Total Assets $6,737.2 $6,656.4