PETITION OF SOUTHERN INDIANA GAS AND ELECTRIC COMPANY d/b/a CENTERPOINT ENERGY INDIANA SOUTH. (“CEI SOUTH”) FOR APPROVAL OF (1) TIME OF USE (“TOU”) AND CRITICAL PEAK PRICING (“CPP”) RATES FOR CEI SOUTH’S CPP PILOT PROGRAM; (2) MODIFICATION OF THE TOU SUMMER PERIOD FOR THE CPP PILOT PROGRAM; AND (3) CEI SOUTH’S RATE RS-CPP TARIFF.