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Non-Controlling Interests (Tables) | 12 Months Ended
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Dec. 31, 2021
Interests In Other Entities [Abstract] |
Share of ownership and equity participation in TransAlta Renewables | The Company’s subsidiaries and operations that have non-controlling interests are as follows:
Subsidiary/Operation | Non-controlling interest as at Dec. 31, 2021
TransAlta Cogeneration L.P. | 49.99% — Canadian Power Holdings Inc.
TransAlta Renewables | 39.9% — Public shareholders
Kent Hills Wind LP(1) | 17% — Natural Forces Technologies Inc.
(1) Owned by TransAlta Renewables.
Disclosure of interests in subsidiaries | The net earnings, distributions and equity attributable to non-controlling interests include the 17 per cent non-controlling interest in the 167 MW Kent Hills wind facility located in New Brunswick.
Year ended Dec. 31 | 2021 | 2020 | 2019
Revenues | 470 |  | 436 |  | 446 |
Net earnings | 139 |  | 97 |  | 183 |
Total comprehensive earnings | 66 |  | 223 |  | 138 |
Amounts attributable to the non-controlling interests: |  |  |
Net earnings | 50 |  | 40 |  | 73 |
Total comprehensive earnings | 21 |  | 90 |  | 56 |
Distributions paid to non-controlling interests | 100 |  | 80 |  | 69 |
As at Dec. 31 | 2021 | 2020
Current assets | 430 |  | 743 |
Long-term assets | 3,319 |  | 2,913 |
Current liabilities | (593) |  | (364) |
Long-term liabilities | (1,033) |  | (987) |
Total equity | (2,123) |  | (2,305) |
Equity attributable to non-controlling interests | (869) |  | (948) |
Non-controlling interests’ share (per cent) | 39.9 | 39.9
In 2020, the Company's ownership per cent decreased from 60.4 per cent in 2019 to 60.1 per cent due to TransAlta Renewables issuing approximately 1 million common shares under their Dividend Reinvestment Plan ("DRIP"). The Company did not participate in this plan. In the fourth quarter of 2020, TransAlta Renewables suspended the DRIP in respect of any future declared dividends. B. TA Cogen
Year ended Dec. 31 | 2021 | 2020 | 2019
Results of operations |  |  |
Revenues | 265 |  | 146 |  | 181 |
Net earnings (loss) | 103 |  | (13) |  | 43 |
Total comprehensive earnings (loss) | 103 |  | (13) |  | 43 |
Amounts attributable to the non-controlling interest: |  |  |
Net earnings (loss) | 62 |  | (6) |  | 21 |
Total comprehensive earnings (loss) | 62 |  | (6) |  | 21 |
Distributions paid to Canadian Power Holdings Inc. | 56 |  | 17 |  | 37 |
As at Dec. 31 | 2021 | 2020
Current assets | 66 |  | 69 |
Long-term assets | 312 |  | 323 |
Current liabilities | (52) |  | (78) |
Long-term liabilities | (36) |  | (37) |
Total equity | (290) |  | (277) |
Equity attributable to Canadian Power Holdings Inc. | (142) |  | (136) |
Non-controlling interest share (per cent) | 49.99 | 49.99
Details of the Company’s principal operating subsidiaries at Dec. 31, 2021, are as follows:
Subsidiary | Country | Ownership (per cent) | Principal activity
TransAlta Generation Partnership | Canada | 100 | Generation and sale of electricity
TransAlta Cogeneration, L.P. | Canada | 50.01 | Generation and sale of electricity
TransAlta Centralia Generation, LLC | US | 100 | Generation and sale of electricity
TransAlta Energy Marketing Corp. | Canada | 100 | Energy marketing
TransAlta Energy Marketing (U.S.), Inc. | US | 100 | Energy marketing
TransAlta Energy (Australia), Pty Ltd. | Australia | 100 | Generation and sale of electricity
TransAlta Renewables Inc. | Canada | 60.1 | Generation and sale of electricity
Associate or joint venture | Country | Ownership (per cent) | Principal activity
SP Skookumchuck Investment, LLC | US | 49 | Generation and sale of electricity
EMG International, LLC | US | 30 | Wastewater treatment and biogas fuel to generate electricity

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