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Risks and Uncertainties (Notes) | 3 Months Ended
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Mar. 31, 2021
Risks and Uncertainties [Abstract] |
Unusual Risks and Uncertainties [Table Text Block] | RISKS AND UNCERTAINTIES COVID-19 Pandemic — The COVID-19 pandemic has severely impacted global economic activity, including electricity and energy consumption, and caused significant volatility and negative pressure in financial markets. The magnitude and duration of the COVID-19 pandemic is unknown at this time and may have material and adverse effects on our results of operations, financial condition, and cash flows in future periods. Mountain View — In April 2021, a triggering event for potential impairment related to re-powering the site was identified for the Mountain View Power Partners generation facility. The impairment analysis is ongoing, and the carrying amount of the fixed assets is approximately $75 million as of March 31, 2021. There was no impact to the consolidated financial statements as of March 31, 2021 as a result of the identification of this triggering event.

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