NEW YORK--(BUSINESS WIRE)--Fitch Ratings has assigned a 'BB+' rating to IPALCO Enterprises, Inc.'s (IPALCO; Issuer Default Rating 'BB+'; Outlook Stable) issuance of senior secured debt. These notes rank pari passu with IPALCO's other senior secured debt, including any future senior debt issuances. The company intends to use the net proceeds from this offering to refinance its 2016 senior debt maturities. IPALCO's ratings reflect quality of cash flow from its regulated operating company-Indianap