XML 113 R83.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Material Accounting Policies (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021
Hydro generation | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 2 years
Hydro generation | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 51 years
Wind generation | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 2 years
Wind generation | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 30 years
Gas generation | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 2 years
Gas generation | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 36 years
Energy Transition | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 2 years
Energy Transition | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 16 years
Capital spares and other | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 2 years
Capital spares and other | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 51 years
Facilities | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 30 years
Facilities | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life measured as period of time, property, plant and equipment | 60 years
Software | Minimum |
Disclosure of detailed information about intangible assets [line items] |
Useful life measured as period of time, intangible assets other than goodwill | 2 years
Software | Maximum |
Disclosure of detailed information about intangible assets [line items] |
Useful life measured as period of time, intangible assets other than goodwill | 7 years
Power sale contracts | Minimum |
Disclosure of detailed information about intangible assets [line items] |
Useful life measured as period of time, intangible assets other than goodwill | 1 year
Power sale contracts | Maximum |
Disclosure of detailed information about intangible assets [line items] |
Useful life measured as period of time, intangible assets other than goodwill | 19 years

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfIntangibleAssetsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The useful life, measured as period of time, used for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The useful life, measured as period of time, used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=tac_HydroGenerationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=tac_WindGenerationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=tac_GasGenerationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=tac_EnergyTransitionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=tac_CapitalSparesAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=tac_FacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis=ifrs-full_ComputerSoftwareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis=tac_PowerSaleContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |