Company: TSLTF
Filing Date: 2025-12-12
Form Type: SUPPL
Source: 0001193125-25-317786
Chunk: 15

Company: TRANSALTA CORP
Filing Date: 2025-12-12
Form: SUPPL
Chunk 15
---
 WA        |     |       N/A |     | 100%         |     |             N/A |     | 43%       |     |          N/A |     |           2015 |     | LTC          |     |            2035 |
| Parkeston                    |     | WA        |     |       110 |     | 50%          |     |              55 |     | 100%      |     |           55 |     |           1996 |     | LTC/Merchant |     |            2027 |
| South Hedland                |     | WA        |     |       150 |     | 100%         |     |             150 |     | 100%      |     |          150 |     |           2017 |     | LTC          |     |            2042 |
| Southern Cross(6)            |     | WA        |     |       245 |     | 100%         |     |             245 |     | 100%      |     |          245 |     |           1996 |     | LTC          |     |            2038 |
| Total Australian             
 Gas Capacity                 |     |           |     |       505 |     |              |     |             450 |     |           |     |          450 |     |                |     |              |     |                 |
| Total Gas                    
 Capacity                     |     |           |     |     5,330 |     |              |     |           4,834 |     |           |     |        4,525 |     |                |     |              |     |                 |

| (1) | MW are rounded to the nearest whole number. The gross installed capacity reflects the basis of consolidation of                                                                                            
 the underlying assets owned, whereas net capacity ownership interest deducts capacity attributable to non-controlling interest in these assets and is calculated after the consolidation of the underlying 
 assets.                                                                                                                                                                                                    |

| (2) | The large majority of the Corporation’s contracted operating facilities benefit from inflation adjustment 
 provisions that apply to all or a portion of our revenues under such contracts.                           |

| (3) | Where no contract expiry date is indicated, the facility operates as merchant. |

| (4) | Our interests in these facilities are through our ownership interest in TransAlta Cogeneration, LP. |

| (5) | The Poplar Creek facility is operated by Suncor Energy Inc