Exhibit 21 IPALCO ENTERPRISES, INC. Subsidiaries of the Company State in Which List of Subsidiaries Organized -------------------- --------- Subsidiary of IPALCO Enterprises, Inc. Indianapolis Power & Light Company (IPL) Indiana Subsidiary of IPL IPL Funding Corporation Indiana Mid-America Capital Resources, Inc. (Mid-America) Indiana Subsidiaries of Mid-America Indianapolis Campus Energy, Inc. (ICE) Indiana Store Heat and Produce Energy, Inc. (SHAPE) Indiana Mid-America Energy Resources, Inc. Indiana (Energy Resources) Subsidiaries of Energy Resources Cleveland Thermal Energy Corporation Ohio Cleveland District Cooling Corporation Ohio Both IPL and Mid-America are wholly owned by IPALCO Enterprises, Inc. Each of the subsidiaries listed for IPL, Mid-America and Energy Resources is wholly owned except for SHAPE, which is 80% owned by Mid-America. Both Cleveland Thermal Energy Corporation and Cleveland District Cooling Corporation conduct business under the name Cleveland Energy Resources. Mid-America and each of its subsidiaries are no longer conducting business.