Florida utility regulators are looking for answers to the question of how Duke Energy Corp.’s takeover of Progress Energy will affect consumers in the state.

The Public Service Commission on Tuesday said Duke Energy CEO Jim Rogers has been asked to appear before the five-member panel on Aug. 13 in Tallahassee.

The North Carolina-based company, now the nation’s largest electric utility, serves parts of north and central Florida including St. Petersburg.

The new company inherited Progress Energy Florida’s troubled Crystal River nuclear power plant. It’s in a prolonged shutdown due to a crack that occurred in a containment building in during an upgrade and maintenance project in 2009.

Rogers told North Carolina regulators last week that Duke’s directors were disappointed in the Crystal River situation and with Progress’ financial performance.