Exhibit 99.1
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AES And Ameren Receive DOJ Request for Additional Information Regarding
Pending Sale of CILCORP
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ARLINGTON, Va., Aug 30, 2002 (BUSINESS WIRE) -- The AES Corporation (NYSE:AES)
and the Ameren Corporation (NYSE:AEE) announced today that they have received
from the U.S. Department of Justice (DOJ) a Request for Additional Information
(Second Request) under the Hart-Scott-Rodino Antitrust Improvements Act
pertaining to the pending sale of CILCORP to Ameren.

The waiting period applicable to the pending sales under the Hart-Scott-Rodino
Antitrust Improvements Act will expire 30 days after substantial compliance
with the Second Request, unless terminated earlier by the DOJ. Issuance of a
Second Request is not unusual for transactions of this size, and the companies
intend to cooperate fully and respond promptly.

As previously announced, the transaction is subject to regulatory approvals by
the Illinois Commerce Commission, the Federal Energy Regulatory Commission,
the Securities and Exchange Commission and expiration of the waiting period
under the Hart-Scott-Rodino Antitrust Improvements Act. AES expects the sale
of CILCORP to close in the first quarter of 2003.

AES is a leading global power company comprised of competitive generation,
distribution and retail supply businesses in Argentina, Australia, Bangladesh,
Brazil, Cameroon, Canada, Chile, China, Colombia, Czech. Republic, Dominican
Republic, El Salvador, Georgia, Germany, Hungary, India, Italy, Kazakhstan,
the Netherlands, Nigeria, Mexico, Oman, Pakistan, Panama, Qatar, South Africa,
Sri Lanka, Tanzania, Uganda, Ukraine, the United Kingdom, the United States
and Venezuela.

The company's generating assets include interests in 177 facilities totaling
over 59 gigawatts of capacity. AES's electricity distribution network has over
727,000 km of conductor and associated rights of way and sells over 108,000
gigawatt hours per year to over 16 million end-use customers.

AES is dedicated to providing electricity worldwide in a socially responsible
way.

This news release may include forward-looking statements. Actual events and
results may differ materially from those projected. Factors that could affect
actual results are discussed in AES's filings with the Securities and Exchange
Commission, and readers are encouraged to read those filings to learn more
about the risk factors associated with AES's businesses.

For more general information visit our web site at www.aes.com or contact
investor relations at investing@aes.com.

CONTACT:
AES
Kenneth R. Woodcock, 703/522-1315