EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our report dated February 24, 1999, included in this Form 10-K, into Dynegy Inc.'s previously filed registration statements of Form S-8 (File Nos. 33-75044, 33-96394 and 333-20773) and Form S-3 (File Nos. 333-12987 and 333-60253). /s/ Arthur Andersen LLP ARTHUR ANDERSEN LLP Houston, Texas March 26, 1999