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Reportable Segments | 9 Months Ended
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Sep. 30, 2025
Segment Reporting Information [Line Items] |
Reportable Segments | Reportable Segments Reportable segments consist of business units defined by the products and services they offer. CMS Energy’s and Consumers’ chief operating decision-maker is the CEO. The chief operating decision-maker evaluates segment performance and profitability using net income available to CMS Energy’s common stockholders. This metric provides a clear, consistent basis for analyzing the financial results of each segment and supports decision-making regarding the allocation of resources. Resource allocation to CMS Energy’s and Consumers’ segments begins with the annual budgeting process, which establishes initial funding and resource levels for each segment. The budget incorporates key financial and operational inputs, including anticipated revenues, expenses, and capital requirements, aligning with CMS Energy’s and Consumers’ strategic objectives and regulatory obligations. The chief operating decision-maker reviews budget-to-actual variances on a monthly basis and makes interim decisions to reallocate resources among segments as needed, ensuring a timely and effective response to changing conditions. For the electric utility and gas utility segments, the chief operating decision-maker uses this assessment to determine whether the segments are achieving their regulatory authorized return on equity. CMS Energy The segments reported for CMS Energy are: •electric utility, consisting of regulated activities associated with the generation, purchase, distribution, and sale of electricity in Michigan •gas utility, consisting of regulated activities associated with the purchase, transmission, storage, distribution, and sale of natural gas in Michigan •NorthStar Clean Energy, consisting of various subsidiaries engaging in domestic independent power production, including the development and operation of renewable generation, and the marketing of independent power production CMS Energy presents corporate interest and other expenses, discontinued operations, and Consumers’ other consolidated entities within other reconciling items. Consumers The segments reported for Consumers are: •electric utility, consisting of regulated activities associated with the generation, purchase, distribution, and sale of electricity in Michigan •gas utility, consisting of regulated activities associated with the purchase, transmission, storage, distribution, and sale of natural gas in Michigan Consumers’ other consolidated entities are presented within other reconciling items.
In Millions
Three Months Ended September 30, 2025 | Electric Utility | Gas Utility | NorthStar Clean Energy | Segments Total | Other Reconciling Items | Consolidated
CMS Energy, including Consumers
Operating revenue |  | $ | 1,679 |  |  | $ | 234 |  |  | $ | 108 |  |  | $ | 2,021 |  |  | $ | — |  |  | $ | 2,021 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 624 |  |  | — |  |  | 63 |  |  | 687 |  |  | — |  |  | 687 |
Cost of gas sold |  | — |  |  | 40 |  |  | 2 |  |  | 42 |  |  | — |  |  | 42 |
Maintenance and other operating expenses |  | 285 |  |  | 103 |  |  | 25 |  |  | 413 |  |  | 3 |  |  | 416 |
Depreciation and amortization |  | 239 |  |  | 35 |  |  | 14 |  |  | 288 |  |  | — |  |  | 288 |
General taxes |  | 81 |  |  | 23 |  |  | 3 |  |  | 107 |  |  | — |  |  | 107 |
Total operating expenses |  | 1,229 |  |  | 201 |  |  | 107 |  |  | 1,537 |  |  | 3 |  |  | 1,540 |
Operating Income (Loss) |  | 450 |  |  | 33 |  |  | 1 |  |  | 484 |  |  | (3) |  |  | 481 |
Other income |  | 34 |  |  | 22 |  |  | 4 |  |  | 60 |  |  | 2 |  |  | 62 |
Interest charges |  | 92 |  |  | 53 |  |  | (1) |  |  | 144 |  |  | 59 |  |  | 203 |
Income (Loss) Before Income Taxes |  | 392 |  |  | 2 |  |  | 6 |  |  | 400 |  |  | (60) |  |  | 340 |
Income tax expense |  | 66 |  |  | 2 |  |  | — |  |  | 68 |  |  | — |  |  | 68 |
Income (Loss) From Continuing Operations |  | 326 |  |  | — |  |  | 6 |  |  | 332 |  |  | (60) |  |  | 272 |
Other segment items 2 |  | — |  |  | — |  |  | 5 |  |  | 5 |  |  | (2) |  |  | 3 |
Net Income (Loss) Available to Common Stockholders |  | $ | 326 |  |  | $ | — |  |  | $ | 11 |  |  | $ | 337 |  |  | $ | (62) |  |  | $ | 275 |
Property, plant, and equipment, gross |  | $ | 21,095 |  | 3 | $ | 13,890 |  | 3 | $ | 1,568 |  |  | $ | 36,553 |  |  | $ | 30 |  |  | $ | 36,583 |
Total assets |  | 21,917 |  | 3 | 13,720 |  | 3 | 2,229 |  |  | 37,866 |  |  | 142 |  |  | 38,008 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of loss attributable to noncontrolling interests and preferred stock dividends. 3 Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
In Millions
Three Months Ended September 30, 2025 | Electric Utility | Gas Utility | Segments Total | Other Reconciling Items | Consolidated
Consumers
Operating revenue |  | $ | 1,679 |  |  | $ | 234 |  |  | $ | 1,913 |  |  | $ | — |  |  | $ | 1,913 |
Operating expenses |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 624 |  |  | — |  |  | 624 |  |  | — |  |  | 624 |
Cost of gas sold |  | — |  |  | 40 |  |  | 40 |  |  | — |  |  | 40 |
Maintenance and other operating expenses |  | 285 |  |  | 103 |  |  | 388 |  |  | — |  |  | 388 |
Depreciation and amortization |  | 239 |  |  | 35 |  |  | 274 |  |  | — |  |  | 274 |
General taxes |  | 81 |  |  | 23 |  |  | 104 |  |  | — |  |  | 104 |
Total operating expenses |  | 1,229 |  |  | 201 |  |  | 1,430 |  |  | — |  |  | 1,430 |
Operating Income |  | 450 |  |  | 33 |  |  | 483 |  |  | — |  |  | 483 |
Other income |  | 34 |  |  | 22 |  |  | 56 |  |  | (1) |  |  | 55 |
Interest charges |  | 92 |  |  | 53 |  |  | 145 |  |  | — |  |  | 145 |
Income (Loss) Before Income Taxes |  | 392 |  |  | 2 |  |  | 394 |  |  | (1) |  |  | 393 |
Income tax expense |  | 66 |  |  | 2 |  |  | 68 |  |  | 11 |  |  | 79 |
Net Income (Loss) Available to Common Stockholder |  | $ | 326 |  |  | $ | — |  |  | $ | 326 |  |  | $ | (12) |  |  | $ | 314 |
Property, plant, and equipment, gross |  | $ | 21,095 |  | 2 | $ | 13,890 |  | 2 | $ | 34,985 |  |  | $ | 36 |  |  | $ | 35,021 |
Total assets |  | 21,972 |  | 2 | 13,762 |  | 2 | 35,734 |  |  | 46 |  |  | 35,780 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
In Millions
Three Months Ended September 30, 2024 | Electric Utility | Gas Utility | NorthStar Clean Energy | Segments Total | Other Reconciling Items | Consolidated
CMS Energy, including Consumers
Operating revenue |  | $ | 1,448 |  |  | $ | 213 |  |  | $ | 82 |  |  | $ | 1,743 |  |  | $ | — |  |  | $ | 1,743 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 515 |  |  | — |  |  | 45 |  |  | 560 |  |  | — |  |  | 560 |
Cost of gas sold |  | — |  |  | 31 |  |  | 1 |  |  | 32 |  |  | — |  |  | 32 |
Maintenance and other operating expenses |  | 282 |  |  | 99 |  |  | 27 |  |  | 408 |  |  | 4 |  |  | 412 |
Depreciation and amortization |  | 229 |  |  | 32 |  |  | 12 |  |  | 273 |  |  | — |  |  | 273 |
General taxes |  | 75 |  |  | 20 |  |  | 4 |  |  | 99 |  |  | — |  |  | 99 |
Total operating expenses |  | 1,101 |  |  | 182 |  |  | 89 |  |  | 1,372 |  |  | 4 |  |  | 1,376 |
Operating Income (Loss) |  | 347 |  |  | 31 |  |  | (7) |  |  | 371 |  |  | (4) |  |  | 367 |
Other income |  | 35 |  |  | 25 |  |  | 3 |  |  | 63 |  |  | 21 |  |  | 84 |
Interest charges |  | 82 |  |  | 49 |  |  | 2 |  |  | 133 |  |  | 45 |  |  | 178 |
Income (Loss) Before Income Taxes |  | 300 |  |  | 7 |  |  | (6) |  |  | 301 |  |  | (28) |  |  | 273 |
Income tax expense (benefit) |  | 27 |  |  | (4) |  |  | (6) |  |  | 17 |  |  | 9 |  |  | 26 |
Income (Loss) From Continuing Operations |  | 273 |  |  | 11 |  |  | — |  |  | 284 |  |  | (37) |  |  | 247 |
Other segment items 2 |  | — |  |  | — |  |  | 6 |  |  | 6 |  |  | (2) |  |  | 4 |
Net Income (Loss) Available to Common Stockholders |  | $ | 273 |  |  | $ | 11 |  |  | $ | 6 |  |  | $ | 290 |  |  | $ | (39) |  |  | $ | 251 |
Property, plant, and equipment, gross |  | $ | 19,826 |  | 3 | $ | 12,840 |  | 3 | $ | 1,469 |  |  | $ | 34,135 |  |  | $ | 21 |  |  | $ | 34,156 |
Total assets |  | 20,222 |  | 3 | 12,809 |  | 3 | 1,711 |  |  | 34,742 |  |  | 75 |  |  | 34,817 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of income from discontinued operations, net of tax, loss attributable to noncontrolling interests, and preferred stock dividends. 3 Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
In Millions
Three Months Ended September 30, 2024 | Electric Utility | Gas Utility | Segments Total | Other Reconciling Items | Consolidated
Consumers
Operating revenue |  | $ | 1,448 |  |  | $ | 213 |  |  | $ | 1,661 |  |  | $ | — |  |  | $ | 1,661 |
Operating expenses |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 515 |  |  | — |  |  | 515 |  |  | — |  |  | 515 |
Cost of gas sold |  | — |  |  | 31 |  |  | 31 |  |  | — |  |  | 31 |
Maintenance and other operating expenses |  | 282 |  |  | 99 |  |  | 381 |  |  | — |  |  | 381 |
Depreciation and amortization |  | 229 |  |  | 32 |  |  | 261 |  |  | — |  |  | 261 |
General taxes |  | 75 |  |  | 20 |  |  | 95 |  |  | — |  |  | 95 |
Total operating expenses |  | 1,101 |  |  | 182 |  |  | 1,283 |  |  | — |  |  | 1,283 |
Operating Income |  | 347 |  |  | 31 |  |  | 378 |  |  | — |  |  | 378 |
Other income |  | 35 |  |  | 25 |  |  | 60 |  |  | — |  |  | 60 |
Interest charges |  | 82 |  |  | 49 |  |  | 131 |  |  | — |  |  | 131 |
Income Before Income Taxes |  | 300 |  |  | 7 |  |  | 307 |  |  | — |  |  | 307 |
Income tax expense (benefit) |  | 27 |  |  | (4) |  |  | 23 |  |  | 11 |  |  | 34 |
Net Income (Loss) Available to Common Stockholder |  | $ | 273 |  |  | $ | 11 |  |  | $ | 284 |  |  | $ | (11) |  |  | $ | 273 |
Property, plant, and equipment, gross |  | $ | 19,826 |  | 2 | $ | 12,840 |  | 2 | $ | 32,666 |  |  | $ | 29 |  |  | $ | 32,695 |
Total assets |  | 20,279 |  | 2 | 12,852 |  | 2 | 33,131 |  |  | 29 |  |  | 33,160 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses. Presented in the following tables is financial information by segment:
In Millions
Nine Months Ended September 30, 2025 | Electric Utility | Gas Utility | NorthStar Clean Energy | Segments Total | Other Reconciling Items | Consolidated
CMS Energy, including Consumers
Operating revenue |  | $ | 4,337 |  |  | $ | 1,670 |  |  | $ | 299 |  |  | $ | 6,306 |  |  | $ | — |  |  | $ | 6,306 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 1,707 |  |  | — |  |  | 198 |  |  | 1,905 |  |  | — |  |  | 1,905 |
Cost of gas sold |  | — |  |  | 545 |  |  | 4 |  |  | 549 |  |  | — |  |  | 549 |
Maintenance and other operating expenses |  | 806 |  |  | 331 |  |  | 73 |  |  | 1,210 |  |  | 8 |  |  | 1,218 |
Depreciation and amortization |  | 682 |  |  | 243 |  |  | 39 |  |  | 964 |  |  | — |  |  | 964 |
General taxes |  | 227 |  |  | 142 |  |  | 9 |  |  | 378 |  |  | — |  |  | 378 |
Total operating expenses |  | 3,422 |  |  | 1,261 |  |  | 323 |  |  | 5,006 |  |  | 8 |  |  | 5,014 |
Operating Income (Loss) |  | 915 |  |  | 409 |  |  | (24) |  |  | 1,300 |  |  | (8) |  |  | 1,292 |
Other income |  | 97 |  |  | 64 |  |  | 7 |  |  | 168 |  |  | 81 |  |  | 249 |
Interest charges |  | 263 |  |  | 152 |  |  | (2) |  |  | 413 |  |  | 175 |  |  | 588 |
Income (Loss) Before Income Taxes |  | 749 |  |  | 321 |  |  | (15) |  |  | 1,055 |  |  | (102) |  |  | 953 |
Income tax expense (benefit) |  | 131 |  |  | 83 |  |  | (7) |  |  | 207 |  |  | (14) |  |  | 193 |
Income (Loss) From Continuing Operations |  | 618 |  |  | 238 |  |  | (8) |  |  | 848 |  |  | (88) |  |  | 760 |
Other segment items 2 |  | (1) |  |  | — |  |  | 23 |  |  | 22 |  |  | (7) |  |  | 15 |
Net Income (Loss) Available to Common Stockholders |  | $ | 617 |  |  | $ | 238 |  |  | $ | 15 |  |  | $ | 870 |  |  | $ | (95) |  |  | $ | 775 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of loss attributable to noncontrolling interests and preferred stock dividends.
In Millions
Nine Months Ended September 30, 2025 | Electric Utility | Gas Utility | Segments Total | Other Reconciling Items | Consolidated
Consumers
Operating revenue |  | $ | 4,337 |  |  | $ | 1,670 |  |  | $ | 6,007 |  |  | $ | — |  |  | $ | 6,007 |
Operating expenses |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 1,707 |  |  | — |  |  | 1,707 |  |  | — |  |  | 1,707 |
Cost of gas sold |  | — |  |  | 545 |  |  | 545 |  |  | — |  |  | 545 |
Maintenance and other operating expenses |  | 806 |  |  | 331 |  |  | 1,137 |  |  | — |  |  | 1,137 |
Depreciation and amortization |  | 682 |  |  | 243 |  |  | 925 |  |  | — |  |  | 925 |
General taxes |  | 227 |  |  | 142 |  |  | 369 |  |  | — |  |  | 369 |
Total operating expenses |  | 3,422 |  |  | 1,261 |  |  | 4,683 |  |  | — |  |  | 4,683 |
Operating Income |  | 915 |  |  | 409 |  |  | 1,324 |  |  | — |  |  | 1,324 |
Other income |  | 97 |  |  | 64 |  |  | 161 |  |  | — |  |  | 161 |
Interest charges |  | 263 |  |  | 152 |  |  | 415 |  |  | 1 |  |  | 416 |
Income (Loss) Before Income Taxes |  | 749 |  |  | 321 |  |  | 1,070 |  |  | (1) |  |  | 1,069 |
Income tax expense |  | 131 |  |  | 83 |  |  | 214 |  |  | 7 |  |  | 221 |
Net Income (Loss) |  | 618 |  |  | 238 |  |  | 856 |  |  | (8) |  |  | 848 |
Other segment items 2 |  | (1) |  |  | — |  |  | (1) |  |  | — |  |  | (1) |
Net Income (Loss) Available to Common Stockholder |  | $ | 617 |  |  | $ | 238 |  |  | $ | 855 |  |  | $ | (8) |  |  | $ | 847 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of preferred stock dividends.
In Millions
Nine Months Ended September 30, 2024 | Electric Utility | Gas Utility | NorthStar Clean Energy | Segments Total | Other Reconciling Items | Consolidated
CMS Energy, including Consumers
Operating revenue |  | $ | 3,806 |  |  | $ | 1,485 |  |  | $ | 235 |  |  | $ | 5,526 |  |  | $ | — |  |  | $ | 5,526 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 1,408 |  |  | — |  |  | 119 |  |  | 1,527 |  |  | — |  |  | 1,527 |
Cost of gas sold |  | — |  |  | 447 |  |  | 2 |  |  | 449 |  |  | — |  |  | 449 |
Maintenance and other operating expenses |  | 781 |  |  | 355 |  |  | 73 |  |  | 1,209 |  |  | 9 |  |  | 1,218 |
Depreciation and amortization |  | 651 |  |  | 226 |  |  | 36 |  |  | 913 |  |  | 1 |  |  | 914 |
General taxes |  | 214 |  |  | 132 |  |  | 10 |  |  | 356 |  |  | — |  |  | 356 |
Total operating expenses |  | 3,054 |  |  | 1,160 |  |  | 240 |  |  | 4,454 |  |  | 10 |  |  | 4,464 |
Operating Income (Loss) |  | 752 |  |  | 325 |  |  | (5) |  |  | 1,072 |  |  | (10) |  |  | 1,062 |
Other income |  | 105 |  |  | 70 |  |  | 11 |  |  | 186 |  |  | 97 |  |  | 283 |
Interest charges |  | 242 |  |  | 143 |  |  | 3 |  |  | 388 |  |  | 140 |  |  | 528 |
Income (Loss) Before Income Taxes |  | 615 |  |  | 252 |  |  | 3 |  |  | 870 |  |  | (53) |  |  | 817 |
Income tax expense (benefit) |  | 74 |  |  | 57 |  |  | (3) |  |  | 128 |  |  | (3) |  |  | 125 |
Income (Loss) From Continuing Operations |  | 541 |  |  | 195 |  |  | 6 |  |  | 742 |  |  | (50) |  |  | 692 |
Other segment items 2 |  | (1) |  |  | — |  |  | 47 |  |  | 46 |  |  | (7) |  |  | 39 |
Net Income (Loss) Available to Common Stockholders |  | $ | 540 |  |  | $ | 195 |  |  | $ | 53 |  |  | $ | 788 |  |  | $ | (57) |  |  | $ | 731 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of loss attributable to noncontrolling interests and preferred stock dividends.
In Millions
Nine Months Ended September 30, 2024 | Electric Utility | Gas Utility | Segments Total | Other Reconciling Items | Consolidated
Consumers
Operating revenue |  | $ | 3,806 |  |  | $ | 1,485 |  |  | $ | 5,291 |  |  | $ | — |  |  | $ | 5,291 |
Operating expenses |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 1,408 |  |  | — |  |  | 1,408 |  |  | — |  |  | 1,408 |
Cost of gas sold |  | — |  |  | 447 |  |  | 447 |  |  | — |  |  | 447 |
Maintenance and other operating expenses |  | 781 |  |  | 355 |  |  | 1,136 |  |  | — |  |  | 1,136 |
Depreciation and amortization |  | 651 |  |  | 226 |  |  | 877 |  |  | 1 |  |  | 878 |
General taxes |  | 214 |  |  | 132 |  |  | 346 |  |  | — |  |  | 346 |
Total operating expenses |  | 3,054 |  |  | 1,160 |  |  | 4,214 |  |  | 1 |  |  | 4,215 |
Operating Income (Loss) |  | 752 |  |  | 325 |  |  | 1,077 |  |  | (1) |  |  | 1,076 |
Other income |  | 105 |  |  | 70 |  |  | 175 |  |  | — |  |  | 175 |
Interest charges |  | 242 |  |  | 143 |  |  | 385 |  |  | 1 |  |  | 386 |
Income (Loss) Before Income Taxes |  | 615 |  |  | 252 |  |  | 867 |  |  | (2) |  |  | 865 |
Income tax expense |  | 74 |  |  | 57 |  |  | 131 |  |  | 8 |  |  | 139 |
Net Income (Loss) |  | 541 |  |  | 195 |  |  | 736 |  |  | (10) |  |  | 726 |
Other segment items 2 |  | (1) |  |  | — |  |  | (1) |  |  | — |  |  | (1) |
Net Income (Loss) Available to Common Stockholder |  | $ | 540 |  |  | $ | 195 |  |  | $ | 735 |  |  | $ | (10) |  |  | $ | 725 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of preferred stock dividends.
Consumers Energy Company |
Segment Reporting Information [Line Items] |
Reportable Segments | Reportable Segments Reportable segments consist of business units defined by the products and services they offer. CMS Energy’s and Consumers’ chief operating decision-maker is the CEO. The chief operating decision-maker evaluates segment performance and profitability using net income available to CMS Energy’s common stockholders. This metric provides a clear, consistent basis for analyzing the financial results of each segment and supports decision-making regarding the allocation of resources. Resource allocation to CMS Energy’s and Consumers’ segments begins with the annual budgeting process, which establishes initial funding and resource levels for each segment. The budget incorporates key financial and operational inputs, including anticipated revenues, expenses, and capital requirements, aligning with CMS Energy’s and Consumers’ strategic objectives and regulatory obligations. The chief operating decision-maker reviews budget-to-actual variances on a monthly basis and makes interim decisions to reallocate resources among segments as needed, ensuring a timely and effective response to changing conditions. For the electric utility and gas utility segments, the chief operating decision-maker uses this assessment to determine whether the segments are achieving their regulatory authorized return on equity. CMS Energy The segments reported for CMS Energy are: •electric utility, consisting of regulated activities associated with the generation, purchase, distribution, and sale of electricity in Michigan •gas utility, consisting of regulated activities associated with the purchase, transmission, storage, distribution, and sale of natural gas in Michigan •NorthStar Clean Energy, consisting of various subsidiaries engaging in domestic independent power production, including the development and operation of renewable generation, and the marketing of independent power production CMS Energy presents corporate interest and other expenses, discontinued operations, and Consumers’ other consolidated entities within other reconciling items. Consumers The segments reported for Consumers are: •electric utility, consisting of regulated activities associated with the generation, purchase, distribution, and sale of electricity in Michigan •gas utility, consisting of regulated activities associated with the purchase, transmission, storage, distribution, and sale of natural gas in Michigan Consumers’ other consolidated entities are presented within other reconciling items.
In Millions
Three Months Ended September 30, 2025 | Electric Utility | Gas Utility | NorthStar Clean Energy | Segments Total | Other Reconciling Items | Consolidated
CMS Energy, including Consumers
Operating revenue |  | $ | 1,679 |  |  | $ | 234 |  |  | $ | 108 |  |  | $ | 2,021 |  |  | $ | — |  |  | $ | 2,021 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 624 |  |  | — |  |  | 63 |  |  | 687 |  |  | — |  |  | 687 |
Cost of gas sold |  | — |  |  | 40 |  |  | 2 |  |  | 42 |  |  | — |  |  | 42 |
Maintenance and other operating expenses |  | 285 |  |  | 103 |  |  | 25 |  |  | 413 |  |  | 3 |  |  | 416 |
Depreciation and amortization |  | 239 |  |  | 35 |  |  | 14 |  |  | 288 |  |  | — |  |  | 288 |
General taxes |  | 81 |  |  | 23 |  |  | 3 |  |  | 107 |  |  | — |  |  | 107 |
Total operating expenses |  | 1,229 |  |  | 201 |  |  | 107 |  |  | 1,537 |  |  | 3 |  |  | 1,540 |
Operating Income (Loss) |  | 450 |  |  | 33 |  |  | 1 |  |  | 484 |  |  | (3) |  |  | 481 |
Other income |  | 34 |  |  | 22 |  |  | 4 |  |  | 60 |  |  | 2 |  |  | 62 |
Interest charges |  | 92 |  |  | 53 |  |  | (1) |  |  | 144 |  |  | 59 |  |  | 203 |
Income (Loss) Before Income Taxes |  | 392 |  |  | 2 |  |  | 6 |  |  | 400 |  |  | (60) |  |  | 340 |
Income tax expense |  | 66 |  |  | 2 |  |  | — |  |  | 68 |  |  | — |  |  | 68 |
Income (Loss) From Continuing Operations |  | 326 |  |  | — |  |  | 6 |  |  | 332 |  |  | (60) |  |  | 272 |
Other segment items 2 |  | — |  |  | — |  |  | 5 |  |  | 5 |  |  | (2) |  |  | 3 |
Net Income (Loss) Available to Common Stockholders |  | $ | 326 |  |  | $ | — |  |  | $ | 11 |  |  | $ | 337 |  |  | $ | (62) |  |  | $ | 275 |
Property, plant, and equipment, gross |  | $ | 21,095 |  | 3 | $ | 13,890 |  | 3 | $ | 1,568 |  |  | $ | 36,553 |  |  | $ | 30 |  |  | $ | 36,583 |
Total assets |  | 21,917 |  | 3 | 13,720 |  | 3 | 2,229 |  |  | 37,866 |  |  | 142 |  |  | 38,008 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of loss attributable to noncontrolling interests and preferred stock dividends. 3 Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
In Millions
Three Months Ended September 30, 2025 | Electric Utility | Gas Utility | Segments Total | Other Reconciling Items | Consolidated
Consumers
Operating revenue |  | $ | 1,679 |  |  | $ | 234 |  |  | $ | 1,913 |  |  | $ | — |  |  | $ | 1,913 |
Operating expenses |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 624 |  |  | — |  |  | 624 |  |  | — |  |  | 624 |
Cost of gas sold |  | — |  |  | 40 |  |  | 40 |  |  | — |  |  | 40 |
Maintenance and other operating expenses |  | 285 |  |  | 103 |  |  | 388 |  |  | — |  |  | 388 |
Depreciation and amortization |  | 239 |  |  | 35 |  |  | 274 |  |  | — |  |  | 274 |
General taxes |  | 81 |  |  | 23 |  |  | 104 |  |  | — |  |  | 104 |
Total operating expenses |  | 1,229 |  |  | 201 |  |  | 1,430 |  |  | — |  |  | 1,430 |
Operating Income |  | 450 |  |  | 33 |  |  | 483 |  |  | — |  |  | 483 |
Other income |  | 34 |  |  | 22 |  |  | 56 |  |  | (1) |  |  | 55 |
Interest charges |  | 92 |  |  | 53 |  |  | 145 |  |  | — |  |  | 145 |
Income (Loss) Before Income Taxes |  | 392 |  |  | 2 |  |  | 394 |  |  | (1) |  |  | 393 |
Income tax expense |  | 66 |  |  | 2 |  |  | 68 |  |  | 11 |  |  | 79 |
Net Income (Loss) Available to Common Stockholder |  | $ | 326 |  |  | $ | — |  |  | $ | 326 |  |  | $ | (12) |  |  | $ | 314 |
Property, plant, and equipment, gross |  | $ | 21,095 |  | 2 | $ | 13,890 |  | 2 | $ | 34,985 |  |  | $ | 36 |  |  | $ | 35,021 |
Total assets |  | 21,972 |  | 2 | 13,762 |  | 2 | 35,734 |  |  | 46 |  |  | 35,780 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
In Millions
Three Months Ended September 30, 2024 | Electric Utility | Gas Utility | NorthStar Clean Energy | Segments Total | Other Reconciling Items | Consolidated
CMS Energy, including Consumers
Operating revenue |  | $ | 1,448 |  |  | $ | 213 |  |  | $ | 82 |  |  | $ | 1,743 |  |  | $ | — |  |  | $ | 1,743 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 515 |  |  | — |  |  | 45 |  |  | 560 |  |  | — |  |  | 560 |
Cost of gas sold |  | — |  |  | 31 |  |  | 1 |  |  | 32 |  |  | — |  |  | 32 |
Maintenance and other operating expenses |  | 282 |  |  | 99 |  |  | 27 |  |  | 408 |  |  | 4 |  |  | 412 |
Depreciation and amortization |  | 229 |  |  | 32 |  |  | 12 |  |  | 273 |  |  | — |  |  | 273 |
General taxes |  | 75 |  |  | 20 |  |  | 4 |  |  | 99 |  |  | — |  |  | 99 |
Total operating expenses |  | 1,101 |  |  | 182 |  |  | 89 |  |  | 1,372 |  |  | 4 |  |  | 1,376 |
Operating Income (Loss) |  | 347 |  |  | 31 |  |  | (7) |  |  | 371 |  |  | (4) |  |  | 367 |
Other income |  | 35 |  |  | 25 |  |  | 3 |  |  | 63 |  |  | 21 |  |  | 84 |
Interest charges |  | 82 |  |  | 49 |  |  | 2 |  |  | 133 |  |  | 45 |  |  | 178 |
Income (Loss) Before Income Taxes |  | 300 |  |  | 7 |  |  | (6) |  |  | 301 |  |  | (28) |  |  | 273 |
Income tax expense (benefit) |  | 27 |  |  | (4) |  |  | (6) |  |  | 17 |  |  | 9 |  |  | 26 |
Income (Loss) From Continuing Operations |  | 273 |  |  | 11 |  |  | — |  |  | 284 |  |  | (37) |  |  | 247 |
Other segment items 2 |  | — |  |  | — |  |  | 6 |  |  | 6 |  |  | (2) |  |  | 4 |
Net Income (Loss) Available to Common Stockholders |  | $ | 273 |  |  | $ | 11 |  |  | $ | 6 |  |  | $ | 290 |  |  | $ | (39) |  |  | $ | 251 |
Property, plant, and equipment, gross |  | $ | 19,826 |  | 3 | $ | 12,840 |  | 3 | $ | 1,469 |  |  | $ | 34,135 |  |  | $ | 21 |  |  | $ | 34,156 |
Total assets |  | 20,222 |  | 3 | 12,809 |  | 3 | 1,711 |  |  | 34,742 |  |  | 75 |  |  | 34,817 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of income from discontinued operations, net of tax, loss attributable to noncontrolling interests, and preferred stock dividends. 3 Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
In Millions
Three Months Ended September 30, 2024 | Electric Utility | Gas Utility | Segments Total | Other Reconciling Items | Consolidated
Consumers
Operating revenue |  | $ | 1,448 |  |  | $ | 213 |  |  | $ | 1,661 |  |  | $ | — |  |  | $ | 1,661 |
Operating expenses |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 515 |  |  | — |  |  | 515 |  |  | — |  |  | 515 |
Cost of gas sold |  | — |  |  | 31 |  |  | 31 |  |  | — |  |  | 31 |
Maintenance and other operating expenses |  | 282 |  |  | 99 |  |  | 381 |  |  | — |  |  | 381 |
Depreciation and amortization |  | 229 |  |  | 32 |  |  | 261 |  |  | — |  |  | 261 |
General taxes |  | 75 |  |  | 20 |  |  | 95 |  |  | — |  |  | 95 |
Total operating expenses |  | 1,101 |  |  | 182 |  |  | 1,283 |  |  | — |  |  | 1,283 |
Operating Income |  | 347 |  |  | 31 |  |  | 378 |  |  | — |  |  | 378 |
Other income |  | 35 |  |  | 25 |  |  | 60 |  |  | — |  |  | 60 |
Interest charges |  | 82 |  |  | 49 |  |  | 131 |  |  | — |  |  | 131 |
Income Before Income Taxes |  | 300 |  |  | 7 |  |  | 307 |  |  | — |  |  | 307 |
Income tax expense (benefit) |  | 27 |  |  | (4) |  |  | 23 |  |  | 11 |  |  | 34 |
Net Income (Loss) Available to Common Stockholder |  | $ | 273 |  |  | $ | 11 |  |  | $ | 284 |  |  | $ | (11) |  |  | $ | 273 |
Property, plant, and equipment, gross |  | $ | 19,826 |  | 2 | $ | 12,840 |  | 2 | $ | 32,666 |  |  | $ | 29 |  |  | $ | 32,695 |
Total assets |  | 20,279 |  | 2 | 12,852 |  | 2 | 33,131 |  |  | 29 |  |  | 33,160 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses. Presented in the following tables is financial information by segment:
In Millions
Nine Months Ended September 30, 2025 | Electric Utility | Gas Utility | NorthStar Clean Energy | Segments Total | Other Reconciling Items | Consolidated
CMS Energy, including Consumers
Operating revenue |  | $ | 4,337 |  |  | $ | 1,670 |  |  | $ | 299 |  |  | $ | 6,306 |  |  | $ | — |  |  | $ | 6,306 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 1,707 |  |  | — |  |  | 198 |  |  | 1,905 |  |  | — |  |  | 1,905 |
Cost of gas sold |  | — |  |  | 545 |  |  | 4 |  |  | 549 |  |  | — |  |  | 549 |
Maintenance and other operating expenses |  | 806 |  |  | 331 |  |  | 73 |  |  | 1,210 |  |  | 8 |  |  | 1,218 |
Depreciation and amortization |  | 682 |  |  | 243 |  |  | 39 |  |  | 964 |  |  | — |  |  | 964 |
General taxes |  | 227 |  |  | 142 |  |  | 9 |  |  | 378 |  |  | — |  |  | 378 |
Total operating expenses |  | 3,422 |  |  | 1,261 |  |  | 323 |  |  | 5,006 |  |  | 8 |  |  | 5,014 |
Operating Income (Loss) |  | 915 |  |  | 409 |  |  | (24) |  |  | 1,300 |  |  | (8) |  |  | 1,292 |
Other income |  | 97 |  |  | 64 |  |  | 7 |  |  | 168 |  |  | 81 |  |  | 249 |
Interest charges |  | 263 |  |  | 152 |  |  | (2) |  |  | 413 |  |  | 175 |  |  | 588 |
Income (Loss) Before Income Taxes |  | 749 |  |  | 321 |  |  | (15) |  |  | 1,055 |  |  | (102) |  |  | 953 |
Income tax expense (benefit) |  | 131 |  |  | 83 |  |  | (7) |  |  | 207 |  |  | (14) |  |  | 193 |
Income (Loss) From Continuing Operations |  | 618 |  |  | 238 |  |  | (8) |  |  | 848 |  |  | (88) |  |  | 760 |
Other segment items 2 |  | (1) |  |  | — |  |  | 23 |  |  | 22 |  |  | (7) |  |  | 15 |
Net Income (Loss) Available to Common Stockholders |  | $ | 617 |  |  | $ | 238 |  |  | $ | 15 |  |  | $ | 870 |  |  | $ | (95) |  |  | $ | 775 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of loss attributable to noncontrolling interests and preferred stock dividends.
In Millions
Nine Months Ended September 30, 2025 | Electric Utility | Gas Utility | Segments Total | Other Reconciling Items | Consolidated
Consumers
Operating revenue |  | $ | 4,337 |  |  | $ | 1,670 |  |  | $ | 6,007 |  |  | $ | — |  |  | $ | 6,007 |
Operating expenses |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 1,707 |  |  | — |  |  | 1,707 |  |  | — |  |  | 1,707 |
Cost of gas sold |  | — |  |  | 545 |  |  | 545 |  |  | — |  |  | 545 |
Maintenance and other operating expenses |  | 806 |  |  | 331 |  |  | 1,137 |  |  | — |  |  | 1,137 |
Depreciation and amortization |  | 682 |  |  | 243 |  |  | 925 |  |  | — |  |  | 925 |
General taxes |  | 227 |  |  | 142 |  |  | 369 |  |  | — |  |  | 369 |
Total operating expenses |  | 3,422 |  |  | 1,261 |  |  | 4,683 |  |  | — |  |  | 4,683 |
Operating Income |  | 915 |  |  | 409 |  |  | 1,324 |  |  | — |  |  | 1,324 |
Other income |  | 97 |  |  | 64 |  |  | 161 |  |  | — |  |  | 161 |
Interest charges |  | 263 |  |  | 152 |  |  | 415 |  |  | 1 |  |  | 416 |
Income (Loss) Before Income Taxes |  | 749 |  |  | 321 |  |  | 1,070 |  |  | (1) |  |  | 1,069 |
Income tax expense |  | 131 |  |  | 83 |  |  | 214 |  |  | 7 |  |  | 221 |
Net Income (Loss) |  | 618 |  |  | 238 |  |  | 856 |  |  | (8) |  |  | 848 |
Other segment items 2 |  | (1) |  |  | — |  |  | (1) |  |  | — |  |  | (1) |
Net Income (Loss) Available to Common Stockholder |  | $ | 617 |  |  | $ | 238 |  |  | $ | 855 |  |  | $ | (8) |  |  | $ | 847 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of preferred stock dividends.
In Millions
Nine Months Ended September 30, 2024 | Electric Utility | Gas Utility | NorthStar Clean Energy | Segments Total | Other Reconciling Items | Consolidated
CMS Energy, including Consumers
Operating revenue |  | $ | 3,806 |  |  | $ | 1,485 |  |  | $ | 235 |  |  | $ | 5,526 |  |  | $ | — |  |  | $ | 5,526 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 1,408 |  |  | — |  |  | 119 |  |  | 1,527 |  |  | — |  |  | 1,527 |
Cost of gas sold |  | — |  |  | 447 |  |  | 2 |  |  | 449 |  |  | — |  |  | 449 |
Maintenance and other operating expenses |  | 781 |  |  | 355 |  |  | 73 |  |  | 1,209 |  |  | 9 |  |  | 1,218 |
Depreciation and amortization |  | 651 |  |  | 226 |  |  | 36 |  |  | 913 |  |  | 1 |  |  | 914 |
General taxes |  | 214 |  |  | 132 |  |  | 10 |  |  | 356 |  |  | — |  |  | 356 |
Total operating expenses |  | 3,054 |  |  | 1,160 |  |  | 240 |  |  | 4,454 |  |  | 10 |  |  | 4,464 |
Operating Income (Loss) |  | 752 |  |  | 325 |  |  | (5) |  |  | 1,072 |  |  | (10) |  |  | 1,062 |
Other income |  | 105 |  |  | 70 |  |  | 11 |  |  | 186 |  |  | 97 |  |  | 283 |
Interest charges |  | 242 |  |  | 143 |  |  | 3 |  |  | 388 |  |  | 140 |  |  | 528 |
Income (Loss) Before Income Taxes |  | 615 |  |  | 252 |  |  | 3 |  |  | 870 |  |  | (53) |  |  | 817 |
Income tax expense (benefit) |  | 74 |  |  | 57 |  |  | (3) |  |  | 128 |  |  | (3) |  |  | 125 |
Income (Loss) From Continuing Operations |  | 541 |  |  | 195 |  |  | 6 |  |  | 742 |  |  | (50) |  |  | 692 |
Other segment items 2 |  | (1) |  |  | — |  |  | 47 |  |  | 46 |  |  | (7) |  |  | 39 |
Net Income (Loss) Available to Common Stockholders |  | $ | 540 |  |  | $ | 195 |  |  | $ | 53 |  |  | $ | 788 |  |  | $ | (57) |  |  | $ | 731 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of loss attributable to noncontrolling interests and preferred stock dividends.
In Millions
Nine Months Ended September 30, 2024 | Electric Utility | Gas Utility | Segments Total | Other Reconciling Items | Consolidated
Consumers
Operating revenue |  | $ | 3,806 |  |  | $ | 1,485 |  |  | $ | 5,291 |  |  | $ | — |  |  | $ | 5,291 |
Operating expenses |  |  |  |  |  |  |  |  |  |
Power supply cost 1 |  | 1,408 |  |  | — |  |  | 1,408 |  |  | — |  |  | 1,408 |
Cost of gas sold |  | — |  |  | 447 |  |  | 447 |  |  | — |  |  | 447 |
Maintenance and other operating expenses |  | 781 |  |  | 355 |  |  | 1,136 |  |  | — |  |  | 1,136 |
Depreciation and amortization |  | 651 |  |  | 226 |  |  | 877 |  |  | 1 |  |  | 878 |
General taxes |  | 214 |  |  | 132 |  |  | 346 |  |  | — |  |  | 346 |
Total operating expenses |  | 3,054 |  |  | 1,160 |  |  | 4,214 |  |  | 1 |  |  | 4,215 |
Operating Income (Loss) |  | 752 |  |  | 325 |  |  | 1,077 |  |  | (1) |  |  | 1,076 |
Other income |  | 105 |  |  | 70 |  |  | 175 |  |  | — |  |  | 175 |
Interest charges |  | 242 |  |  | 143 |  |  | 385 |  |  | 1 |  |  | 386 |
Income (Loss) Before Income Taxes |  | 615 |  |  | 252 |  |  | 867 |  |  | (2) |  |  | 865 |
Income tax expense |  | 74 |  |  | 57 |  |  | 131 |  |  | 8 |  |  | 139 |
Net Income (Loss) |  | 541 |  |  | 195 |  |  | 736 |  |  | (10) |  |  | 726 |
Other segment items 2 |  | (1) |  |  | — |  |  | (1) |  |  | — |  |  | (1) |
Net Income (Loss) Available to Common Stockholder |  | $ | 540 |  |  | $ | 195 |  |  | $ | 735 |  |  | $ | (10) |  |  | $ | 725 |
1 Power supply costs comprise of fuel for electric generation, purchased and interchange power, and purchased power – related parties. 2 Other segment items comprise of preferred stock dividends.

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