Company: TSLTF
Filing Date: 2025-12-12
Form Type: SUPPL
Source: 0001193125-25-317786
Chunk: 112

Company: TRANSALTA CORP
Filing Date: 2025-12-12
Form: SUPPL
Chunk 112
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| (4) | Other revenue includes production tax credits related to U.S. wind facilities subject to tax                                                            
 equity financing arrangements, total lease income from long-term contracts that meet the criteria of operating leases and other miscellaneous revenues. |

| TransAlta Corporation |     | 2024 Integrated Report |     | F34 |

Notes to the Consolidated Financial Statements

| Year ended Dec. 31, 2022                                 |     | Hydro |     |     | Wind and 
 Solar    |      |   |     | Gas |       |   |     | Energy     
 Transition |     |   |     | Energy    
 Marketing |     |     | Corporate |    |   |     | Total |       |   |
|:---------------------------------------------------------|:----|:------|----:|:----|:---------|-----:|:--|:----|:----|------:|:--|:----|:-----------|----:|:--|:----|:----------|----:|:----|:----------|:---|:--|:----|:------|------:|:--|
| Revenues from contracts with customers                   |     |       |     |     |          |      |   |     |     |       |   |     |            |     |   |     |           |     |     |           |    |   |     |       |       |   |
| Power and other                                          |     |       |  33 |     |          |  220 |   |     |     |   462 |   |     |            |  10 |   |     |           |   — |     |           | —  |   |     |       |   725 |   |
| Environmental and tax                                    
 attributes(1)                                            |     |       |   1 |     |          |   50 |   |     |     |     — |   |     |            |   — |   |     |           |   — |     |           | —  |   |     |       |    51 |   |
| Revenue from contracts with customers                    |     |       |  34 |     |          |  270 |   |     |     |   462 |   |     |            |  10 |   |     |           |   — |     |           | —  |   |     |       |   776 |   |
| Revenue from derivatives