Dynegy Closes on Transaction to Purchase AES Corporation’s Interests in Zimmer and Miami Fort Facilities

Dynegy Inc. (NYSE: DYN) has closed on the $50 million purchase of a 28.1% ownership interest in the Zimmer Power Station and a 36% ownership interest in the Miami Fort Power Station from DPL Inc., a subsidiary of the AES Corporation. The transaction has received the required approvals from the Federal Energy Regulatory Commission.

Dynegy now owns 100% of both of the Ohio coal-fueled facilities. Zimmer, located in Moscow, has 1,300 megawatts of generating capacity and Miami Fort, in North Bend, has 1,020 megawatts of generating capacity.

About Dynegy

Throughout the Northeast, Mid-Atlantic, Midwest, Texas, and California, Dynegy operates more than 27,000 megawatts of power generating facilities capable of producing enough energy to supply more than 23 million American homes. Through our retail business, we serve approximately 1.2 million customers in the Midwest and Northeast who depend on reliable, affordable energy to grow and thrive.

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Dynegy Inc.Media: Dean Ellis, 713.767.5800orAnalysts: 713.507.6466