United States, Dec. 3 -- Duke Energy Florida has completed efficiency upgrades at Bartow Power Plant in St. Petersburg and two units at Hines Energy Complex in Bartow, allowing the plants to produce a total of 255 megawatts (MW) of additional energy with the same amount of fuel.Including the 60-MW capacity improvement previously completed at the Osprey Energy Center in Auburndale and approximately 16 MW added at the Citrus Combined Cycle Station in Crystal River this fall, more than 330 MW of capacity have been added to the system. These are the latest in a series of ongoing improvements to the company's fleet of natural gas plants that have and will continue to generate considerable savings for customers.Why it mattersThese projects have n...