EX-23 2 ex23.htm EXHIBIT 23 - CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ex23.htm
Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-72156 and 333-136971) of Ameren Corporation of our report dated June 29, 2009 relating to the financial statements of Ameren Corporation Savings Investment Plan, which appears in this Form 11-K.



/s/ PricewaterhouseCoopers LLP
 
St. Louis, Missouri
June 29, 2009