New rates effective in June 2024; a typical residential customer bill will decrease by almost $6 per month Savings adds to more than $11 monthly reduction that went into effect in January 2024 ST. PETERSBURG, Fla., May 7, 2024 /PRNewswire/ -- Duke Energy's Florida customers will see lower electric bills following the Florida Public Service Commission's approval of the company's request to reduce fuel charges on customer bills. As of result, a typical residential 1,000-kWh monthly customer bill will be red ...