Exhibit 23.1




                       CONSENT OF INDEPENDENT ACCOUNTANTS


We  hereby  consent  to the  incorporation  by  reference  in  the  Registration
Statements   on  Form  S-3  (Nos.   333-39400,   333-89970,   333-89970-01   and
333-89970-02)  and the  Registrant  Statements  on  Form  S-8  (Nos.  333-43737,
333-50793,  333-72156,  333-103818 and 333-101506) of Ameren  Corporation of our
report  dated  February  13,  2003  relating  to  the   consolidated   financial
statements,  which  appears  in the  Annual  Report  to  Shareholders,  which is
incorporated  in this  Annual  Report  on Form  10-K.  We  also  consent  to the
incorporation by reference of our report dated February 13, 2003 relating to the
financial statement schedule, which appears in this Form 10-K.


/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP
St. Louis, Missouri
March 31, 2003