Dynegy CEO to Speak at Lehman Brothers CEO Energy/Power Conference

HOUSTON--(BUSINESS WIRE)--Bruce A. Williamson, Chairman and Chief Executive Officer of Dynegy Inc. (NYSE:DYN), will speak at the Lehman Brothers CEO Energy/Power Conference in New York City. Williamson’s presentation is scheduled for 11:45 a.m. ET/10:45 a.m. CT on Thursday, September 6, 2007.

The presentation will be web cast live, and will be available via the “Investor Relations” section of Dynegy’s web site at www.dynegy.com through September 20, 2007.

Dynegy Inc. produces and sells electric energy, capacity and ancillary services in key U.S. markets. The company’s power generation portfolio consists of approximately 19,500 megawatts of baseload, intermediate and peaking power plants fueled by a mix of coal, fuel oil and natural gas. DYNC