Duke Energy Nuclear Fleet Sets All-Time Reliability Record

Duke Energy’s nuclear fleet set a new reliability record in 2025, providing communities across the Carolinas with around-the-clock power.

Officials say steady, predictable output from nuclear units strengthens grid reliability and helps manage system costs, directly supporting growing energy needs.

• Duke Energy’s nuclear plants were generating power a combined 96.9 percent of the time in 2025, a new record for systemwide capacity factor.

• The fleet’s strong performance resulted in approximately $600 million in federal nuclear production tax credits, which are directly passed on to customers to help reduce costs.

• Duke Energy operates 11 nuclear units at six sites across the Carolinas, making nuclear energy the company’s largest generation source in the region. In South Carolina, the sites include Catawba Nuclear Station in York, Oconee Nuclear Station in Seneca and Robinson Nuclear Plant in Hartsville.

•  The fleet provides power to more than 8 million homes across the region with consistent, around-the-clock performance.

Said Kelvin Henderson, chief nuclear officer for Duke Energy: “This new record shows the unmatched reliability our nuclear plants deliver every day. It demonstrates the value we’re committed to providing for our customers, and it reflects the skill and dedication of the teams who operate these facilities with excellence.”

Officials said Duke Energy’s nuclear strategy – extending operational lifespan, conducting power uprates to gain more capacity from existing infrastructure, and engaging in advanced reactor development – builds on year‑over‑year gains in output.