EX-23 2 exhibit23sipdec2005.htm EXHIBIT 23 FOR 2005 11-K 2005 SIP Exhibit 23 for 2005 11-K sip
 
Exhibit 23
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-72156) of Ameren Corporation of our report dated June 23, 2006 relating to the financial statements of Ameren Corporation Savings Investment Plan, which appears in this Form 11-K.
 

/s/ PricewaterhouseCoopers LLP   
PricewaterhouseCoopers LLP
St. Louis, Missouri
June 28, 2006