Duke Energy Corp. 5.625% Junior Subordinated Debentures due 2078 are a financial instrument issued by Duke Energy Corporation. These debentures carry a fixed interest rate of 5.625% and have a maturity date of 2078. They are considered junior subordinated debentures, meaning that they rank lower in priority compared to other debt obligations of Duke Energy. Investors who hold these debentures receive interest payments at a fixed rate, and the principal amount is repaid at maturity. The debentures are listed on a recognized stock exchange, providing investors with liquidity and tradability.