United States, Nov. 20 -- Duke Energy filed requests with the North Carolina Utilities Commission (NCUC) for revised rates at Duke Energy Carolinas and Duke Energy Progress, its two utilities in the state.By the numbers: The company's filing with the NCUC requests an annual revenue increase of $1 billion for Duke Energy Carolinas ($727 million in 2027, $275 million in 2028), which represents a 15% increase over current revenues, and $729 million for Duke Energy Progress ($528 million in 2027, $200 million in 2028), a 15.1% increase over current revenues. The company's requests are based on a 10.95% return on equity and 53% equity capital structure and are subject to NCUC approval.If approved, monthly electric bills for typical Duke Energy C...