August 25, 2008

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

Bruce A. Williamson, Chairman, President 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 12:20 p.m. ET/11:20 a.m. CT on Tuesday, September 2, 2008.

The audio-only web cast will be available live via the "Investor Relations" section of Dynegy's web site at through December 1, 2008.

Through its subsidiaries, Dynegy Inc. produces and sells electric energy, capacity and ancillary services in key U.S. markets. The power generation portfolio consists of more than 18,000 megawatts of baseload, intermediate and peaking power plants fueled by a mix of natural gas, coal and fuel oil. DYNC