NEW YORK--(BUSINESS WIRE)--Fitch Ratings has assigned a 'BBB+' rating to Indianapolis Power & Light Company's (IPL, Issuer Default Rating [IDR] 'BBB-'; Outlook Stable) new $260 million, 4.70% first mortgage bonds (FMBs), due on Sept. 1, 2045. These bonds rank pari passu with IPL's other FMBs, including any future FMB issuances. The company intends to use the net proceeds to finance a portion of its elevated construction program. The Rating Outlook is Stable. Legal ownership structure and la