United States, June 30 -- As the nation approaches Independence Day, Duke Energy is investing in American suppliers to help power local economies, support customer value and build the energy infrastructure needed to serve growing communities.By the numbers: Duke Energy spent nearly $1 billion with North Carolina-based suppliers in 2025, helping local businesses grow while securing the equipment and services needed to keep energy reliable for customers.Looking ahead, Duke Energy's continued investment in North Carolina suppliers could total nearly $5 billion over five years - supporting jobs, strengthening local economies and helping meet growing energy needs.Why it matters: More than 97% of Duke Energy's $17.2 billion in annual sourcing sup...