Here are the 10-K annual reports from Duke Energy Corporation (DUK) in our archive since June 2025, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 10-K covers the audited annual report, with the full financial statements, so if you follow DUK and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full DUK filings page.
Duke Energy Corporation is a large U.S. regulated energy company headquartered in Charlotte, North Carolina, operating mainly through two segments: Electric Utilities and Infrastructure (EU&I) and Gas Utilities and Infrastructure (GU&I). It serves about 8.7 million electric customers across roughly 90,000 square miles in six states and about 1.8 million natural gas customers in the Carolinas, Tennessee, Ohio and Kentucky.
EU&I owns about 55,713 MW of generation capacity with a diverse mix of natural gas, nuclear, coal, hydro and solar, and relies on both owned generation and purchased power. In August 2025, Duke Energy agreed to receive $6 billion from an affiliate of Brookfield Super-Core Infrastructure Partners for an anticipated 19.7% indirect investment in Duke Energy Florida. It also sold its indirect 50% interest in DATC Path 15 Transmission LLC in March 2025 and its 50% interest in Pioneer in November 2024.
GU&I distributes natural gas and holds stakes in pipelines and storage projects such as Sabal Trail, Cardinal, Pine Needle and Hardy Storage. The company operates under extensive state and federal regulation, with recent electric and gas rate cases setting allowed returns on equity generally around 9.5%–10.3%. Duke Energy also manages significant nuclear decommissioning and coal ash closure obligations, supported by regulatory cost recovery and nuclear decommissioning trust funds.