ASSET IMPAIRMENT EXPENSE



	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2017		2016		2017		2016
Kazakhstan Hydroelectric	$	2	$	—	$	92	$	—
Kazakhstan CHPs	—		—		94		—
Buffalo Gap I	—		78		—		78
DPL	—		—		66		235
Tait Energy Storage	—		—		8		—
Buffalo Gap II	—		—		—		159
Other	—		1		—		1
Total	$	2	$	79	$	260	$	473

Kazakhstan Hydroelectric — In April 2017, the Republic of Kazakhstan stated the concession would not be extended for Shulbinsk HPP and Ust-Kamenogorsk HPP, two hydroelectric plants in Kazakhstan, and initiated the process to transfer these plants back to the government. The fair value of the asset group was determined to be below carrying value. As a result, the Company recognized asset impairment expense of $92 million during the nine months ended September 30, 2017. The Kazakhstan hydroelectric plants are reported in the Eurasia SBU reportable segment. See Note 16—Held-for-Sale Businesses and Dispositions of this Form 10-Q for further information.

DPL — On March 17, 2017, the board of directors of DPL approved the retirement of the DPL operated and co-owned Stuart Station coal-fired and diesel-fired generating units, and the Killen Station coal-fired generating unit and combustion turbine on or before June 1, 2018. The Company performed a long-lived asset impairment analysis and determined that the carrying amounts of the facilities were not recoverable. The Stuart Station and Killen Station were determined to have fair values of $3 million and $8 million, respectively, using the income approach. As a result, the Company recognized a total asset impairment expense of $66 million. DPL is reported in the US SBU reportable segment.

During the second quarter of 2016, the Company tested the recoverability of its long-lived generation assets at DPL. Uncertainty created by the Supreme Court of Ohio’s June 20, 2016 opinion, lower expectations of future revenue resulting from the most recent PJM capacity auction, and higher anticipated environmental compliance costs resulting from third party studies were collectively determined to be an impairment indicator for these assets. The Company performed a long-lived asset impairment analysis and determined that the carrying amount of Killen, a coal-fired generation facility, and certain DPL peaking generation facilities were not recoverable. The Killen and DPL peaking generation asset groups were determined to have a fair value of $84 million and $5 million, respectively, using the income approach. As a result, the Company recognized a total asset impairment expense of $235 million. DPL is reported in the US SBU reportable segment.

Kazakhstan CHPs — In January 2017, the Company entered into an agreement for the sale of Ust-Kamenogorsk CHP and Sogrinsk CHP, its combined heating and power coal plants in Kazakhstan. The fair value of the Kazakhstan asset group was determined to be below carrying value. As a result, the Company recognized asset impairment expense of $94 million during the three months ended March 31, 2017. The Company completed the sale of its interest in the Kazakhstan CHP plants on April 7, 2017. Prior to their sale, the plants were reported in the Eurasia SBU reportable segment. See Note 16—Held-for-Sale Businesses and Dispositions of this Form 10-Q for further information.

Buffalo Gap I — During the third quarter of 2016, the Company tested the recoverability of its long-lived assets at Buffalo Gap I. As a result of decreases in wind production, management underwent a process to enhance the methodology for forecasting wind dispatch. The change in management’s estimate of dispatch resulted in lower forecasted revenues from September 2016 through the end of the asset group’s useful life. The Company determined that the carrying amount of the Buffalo Gap I asset group was not recoverable. The Buffalo Gap I asset group was determined to have a fair value of $35 million using the income approach. As a result, the Company recognized an asset impairment expense of $78 million ($23 million attributable to AES). Buffalo Gap I is reported in the US SBU reportable segment.

Buffalo Gap II — During the first quarter of 2016, the Company tested the recoverability of its long-lived assets at Buffalo Gap II. Impairment indicators were identified based on a decline in forward power curves. The Company determined that the carrying amount was not recoverable. The Buffalo Gap II asset group was determined to have a fair value of $92 million using the income approach. As a result, the Company recognized asset impairment expense of $159 million ($49 million attributable to AES). Buffalo Gap II is reported in the US SBU reportable segment.