AmerenUE Requests Sponsors to Withdraw Missouri Clean and Renewable Energy Construction Bills in General Assembly

April 24, 2009

Company Appreciates Strong Support Offered by Courageous Legislators, Applauds Vigorous Debate about Energy Issues ST. LOUIS, April 23 /PRNewswire-FirstCall/ -- Senior management of AmerenUE, the Missouri operating subsidiary of Ameren Corporation (NYSE:AEE) , today announced that they have asked the legislative sponsors of the Missouri Clean and Renewable Energy Construction Act (SB228/HB554) to withdraw the bills from consideration by the General Assembly. "We want to thank the visionary leadership in both the Missouri House and Senate, where this legislation won strong initial support in committees in both bodies," said AmerenUE President and Chief Executive Officer Thomas R. Voss. "Many representatives and senators understood the need for acting now to secure Missouri's energy independence and security, agreeing with us that allowing these funding mechanisms is best for Missouri. "As we were moving forward to preserve the option for nuclear energy for our state, we stressed that we needed financial and regulatory certainty before we could begin construction. However, the current version of the bill being debated in the Senate strips the legislation of the very provisions we needed most to move forward. As a result, AmerenUE is suspending its efforts to build a nuclear power plant in Missouri."

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