A state-funded research group is predicting that Indiana's electricity rates could rise 12 percent over the next four years.
The Purdue University-based State Utility Forecasting Group released a report last week that looked at the state's energy needs between now and 2027.
Its findings include the prediction that Indiana's overall electricity rates could rise 12 percent by 2013 due to more stringent environmental guidelines.
However, the report does not take into account the impact of federal controls on carbon dioxide emissions that Congress is considering.
Such controls could drive electricity rates even higher in Indiana because the state gets about 95 percent of its power from coal-fired power plants that release large amounts of carbon dioxide.