VERIFIED PETITION OF SOUTHER INDIANA GAS AND ELECTRIC COMPANY D/B/A VECTREN ENERGY DELIVERY OF INDIANA, INC. (“VECTREN SOUTH”) FOR APPROVAL OF A RELIABILITY COST AND REVENUE ADJUSTMENT FOR ELECTRIC SERVICE IN ACCORDANCE WITH THE ORDERS OF THE COMMISSION ISSUED IN CAUSE NO. 43111 DATED AUGUST 15, 2007, CAUSE NO. 43839 DATED APRIL 27, 2011, AND CAUSE NO. 43406 RCRA-15 DATED MAY 16, 2018