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Talen Energy Corp

For the period ended Jun 30, 2024. Filed Aug 13, 2024.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2024 · Filed Aug 13, 2024

TLN$361.18-0.5%Stored close · as of Nov 10, 2026

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Contents

9. Asset Retirement Obligations and Accrued Environmental Costs

  1. Asset Retirement Obligations and Accrued Environmental Costs
Successor
June 30, 2024December 31, 2023
Asset retirement obligations$484$464
Accrued environmental costs2323
Total asset retirement obligations and accrued environmental costs507487
Less: asset retirement obligations and accrued environmental costs due within one year (a)3418
Asset retirement obligations and accrued environmental costs due after one year$473$469

(a)Presented as “Other current liabilities” on the Consolidated Statements of Operations.

Asset Retirement Obligations

The changes of the ARO carrying value were:

ARO Rollforward
Carrying value, December 31, 2023 (Successor)$464
Obligations settled(7)
Accretion expense27
Carrying value, June 30, 2024 (Successor)$484

Supplemental information for the ARO:

Successor
June 30, 2024December 31,2023
Supplemental Information
Nuclear (a)$227$214
Non-Nuclear (b)257250
Carrying value$484$464

(a)Obligations are expected to be settled with available funds in the NDT at the time of decommissioning.

(b)Certain obligations are: (i) partially supported by surety bonds, some of which have been collateralized with cash and (or) LCs; or (ii) partially prefunded under phased installment agreements.

See Note 12 for additional information on Susquehanna’s NDT.

See “Talen Montana Financial Assurance” in Note 10 for additional information on Talen Montana’s requirement to provide financial assurance related to certain environmental decommissioning and remediation liabilities related to the Colstrip Units.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.