Company offers easy, low- to no-cost tips to lower energy use, increase savingsDuke Energy Florida lowered rates twice so far this yearST. PETERSBURG, Fla., July 24, 2024 /PRNewswire/ -- Duke Energy Florida is showing customers easy do-it-yourself projects to help maximize energy efficiency through the peak of the sizzling summer heat.The company has also decreased rates in January and again in June. Residential customers are paying approximately $17 per 1,000 kWh less today, compared to one year ago.Custom ...