X0303 4 2009-03-31 0000874761 AES CORP AES 0001428362 Santoroski Richard 4300 WILSON BOULEVARD ARLINGTON VA 22203 1 Vice President Common Stock 2009-03-31 4 A 0 213 5.95 A 18587 I By 401(k) Plan Common Stock 5725 D Units 2009-03-31 4 A 0 95 5.81 A Common Stock 95 4543 D Since Mr. Santoroski's last filing on 03/03/2009, he acquired 213 additional shares of AES Common Stock at an average price of $5.95 pursuant to The AES Retirement Savings Plan. These shares are awarded pursuant to the Restoration Supplemental Retirement Plan (the "Plan"). The reporting person has elected to defer receipt of compensation otherwise payable to him in the form of stock units, the basis of which is determined to be the Company's closing stock price on the last day of each month. The Plan allows for distribution upon a date(s)specified by the participant in the event of the participant's unforeseeable emergency, death or termination of employment. This amount represents the reporting person's March 2009 deferral. /s/ Richard Santoroski 2009-04-02