Consent of Independent Accountants We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-43743) of Central Illinois Public Service Company of our report dated June 25, 1999 on the financial statements of the Central Illinois Public Service Company Long-Term Savings Plan, IUOE No. 148 for the year ended December 31, 1998, which is included in this Form 11-K. /s/ PricewaterhouseCoopers LLP - ------------------------------ PricewaterhouseCoopers LLP St. Louis, Missouri June 29, 1999