XML 52 R17.htm IDEA: XBRL DOCUMENT
v3.22.4

Investments | 12 Months Ended
--- | ---
Dec. 31, 2022
Interests In Other Entities [Abstract] |
Investments | Investments The change in investments is as follows:
| Skookumchuck | EMG | EIP | Ekona | Total
Classification | Equity-accounted | Equity-accounted | FVTPL | FVTOCI |
Balance, Dec. 31, 2020 | 85 |  | 15 |  | — |  | — |  | 100 |
Equity income (loss) | 12 |  | (3) |  | — |  | — |  | 9 |
Distributions received | (4) |  | — |  | — |  | — |  | (4) |
Balance, Dec. 31, 2021 | 93 |  | 12 |  | — |  | — |  | 105 |
Investment | — |  | — |  | 10 |  | 2 |  | 12 |
Equity income (loss) | 10 |  | (1) |  | — |  | — |  | 9 |
Distributions received | (5) |  | — |  | — |  | — |  | (5) |
Changes in foreign exchange rates | 7 |  | 1 |  | 1 |  | — |  | 9 |
Net change in fair value recognized in OCI | — |  | — |  | — |  | (1) |  | (1) |
Balance, Dec. 31, 2022 | 105 |  | 12 |  | 11 |  | 1 |  | 129 |
Equity-accounted Investments The Company’s investments in joint ventures and associates that are accounted for using the equity method consist of its investments in Skookumchuck and EMG. Skookumchuck Wind Project TransAlta holds a 49 per cent membership interest in SP Skookumchuck Investment, LLC. Skookumchuck is a 136.8 MW wind project located in Lewis and Thurston counties near Centralia in Washington state. The project has a 20-year PPA with Puget Sound Energy. EMG International, LLC TransAlta holds a 30 per cent membership interest in EMG. During 2022, the contingent purchase price consideration of US$3.5 million was paid, which was calculated based on actual earnings metrics achieved in 2021 and did not differ from the estimated amount included in the initial purchase price. Summarized financial information on the results of operations relating to the Company’s pro-rata interests in Skookumchuck and EMG, is as follows:
Year ended Dec. 31 | 2022 | 2021 | 2020
Results of operations |  |  |
Revenues and other operating income | 24 |  | 19 |  | 3 |
Expenses | (15) |  | (10) |  | (2) |
Proportionate share of net earnings | 9 |  | 9 |  | 1 |
Other Investments Energy Impact Partners On May 6, 2022, the Company entered into a commitment to invest US$25 million over the next four years in Energy Impact Partners ("EIP") Deep Decarbonization Frontier Fund 1 (the “Frontier Fund”). The investment in the Frontier Fund provides the Company with a portfolio approach to investing in emerging technologies and the opportunity to identify, pilot, commercialize and bring to market emerging technologies that will facilitate the transition to net-zero emissions. During 2022, the Company invested $10 million (US$8 million). The investment is accounted for at FVTPL. Ekona Power Inc. On Feb. 1, 2022, the Company made an equity investment of $2 million in Ekona's Class B Preferred Shares. The investment will help support the commercialization of Ekona’s novel methane pyrolysis technology platform, which produces cleaner and lower-cost turquoise hydrogen. The Company has irrevocably elected to measure its investment in Ekona at FVTOCI. Joint Arrangements Joint arrangements at Dec. 31, 2022, included the following:
Joint operations | Segment | Ownership (per cent) | Description
Sheerness | Gas | 50 | Dual-fuel facility in Alberta, of which TA Cogen has a 50 per cent interest, operated by Heartland Generation Ltd., an affiliate of Energy Capital Partners
Goldfields Power | Gas | 50 | Gas-fired facility in Australia operated by TransAlta
Fort Saskatchewan | Gas | 60 | Cogeneration facility in Alberta, of which TA Cogen has a 60 per cent interest, operated by TransAlta
Fortescue River Gas Pipeline | Gas | 43 | Natural gas pipeline in Western Australia, operated by DBP Development Group
McBride Lake | Wind and Solar | 50 | Wind generation facility in Alberta operated by TransAlta
Soderglen | Wind and Solar | 50 | Wind generation facility in Alberta operated by TransAlta
Pingston | Hydro | 50 | Hydro facility in British Columbia operated by TransAlta
Joint venture | Segment | Ownership (per cent) | Description
Skookumchuck | Wind and Solar | 49 | Wind generation facility in Washington operated by Southern Power

X
- Definition The entire disclosure for interests in other entities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2022-03-24 -Paragraph 1 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_1&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Interests In Other Entities [Abstract] + References No definition available. + Details
Name: | tac_InterestsInOtherEntitiesAbstract
Namespace Prefix: | tac_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration