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Asset Impairment Expense | 3 Months Ended
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Mar. 31, 2013
IMPAIRMENTS | 13. ASSET IMPAIRMENT EXPENSE
|  | Three Months Ended
|  | March 31,
|  | 2013 |  | 2012
|  | (in millions)
Beaver Valley |  | $ | 46 |  | $ | -
Kelanitissa |  |  | - |  |  | 5
Other |  |  | 2 |  |  | 5
Total asset impairment expense |  | $ | 48 |  | $ | 10
Beaver Valley— I n January 2013, Beaver Valley, a wholly-owned 125 Megawatt (“MW”) coal-fired plant in Pennsylvania, entered into an agreement to early terminate its PPA with the offtaker in exchange for a lump sum payment of $60 million which was received on January 9, 2013. The termination was effective January 8, 2013. Beaver Valley also terminated its fuel supply agreement. Under the PPA termination agreement, annual capa city agreements between the off taker and PJM Interconnection, LLC (“PJM”) (a regional transmission organization) for 2013—2016 have been assigned to Beaver Valley. T he termination of the PPA resulted in a significant reduction in the future cash flows of the asset group and was consi dered an impairment indicator. T he carrying amount of the asset group was not recoverable. The carrying amount of the asset group exceeded the fair value of the asset group, resulting in an asset im pairment expense of $46 million. Beaver Valley is reported in the US Generation segment.

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- Definition The entire disclosure for the details of the charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Disclosure may also include a description of the impaired asset and facts and circumstances leading to the impairment, amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired asset is reported. + References No definition available. + Details
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