Individual Investors For inquiries about your stockholder account (transfers, dividend payments, lost certificates, name or address changes, etc.) or our dividend reinvestment and stock purchase plan, contact our transfer agent, The Bank of New York: Call (800) 558-9663 from 7 a.m. to 7 p.m. Central Time on any business day to speak to a stockholder services representative. Pre-recorded information is available 24-hours each day. E-mail U.S. Mail Wisconsin Energy Corporation c/o The Bank of New York Church Street Station P.O. Box 11258 New York, NY 10286-1258 Online Account Access For other individual investor inquiries, contact: Stockholder Services Wisconsin Energy Corporation 231 W. Michigan St., P346 Milwaukee, WI 53203 (800) 881-5882

Institutional Investors Security analysts, investment professionals, portfolio managers and those with financial or general business questions may contact: Colleen F. Henderson, CFA Manager of Strategic Planning & Investor Relations Wisconsin Energy Corporation 231 W. Michigan St. Milwaukee, WI 53203 (414) 221-2592