Commonwealth Edison customers could be overpaying by $189 million dollars. That’s according to a study released Tuesday by the Citizens Utility Board.

“I think the report we released is good news and bad news,” said David Kolata, CUB executive director. “The bad news is it does suggest that a lot of us are overpaying. The good news is by taking very simple steps you can save a lot of money.”

The report, entitled “Making Every Kilowatt Hour Count,” analyzes CUB’s new Energy Saver initiative. The program began last year and sends ComEd customers tips for energy conservation. The 11,682 customers who use the program saved an average of 5.5 percent off their electric bills this year, according to CUB.

Some of the tips CUB reccomends are replacing lights with compact florescent light bulbs, using blinds during the summer, washing larger loads of dishes and turning off the coffee maker after brewing.

The report comes just weeks after the Illinois General Assembly passed legislation that would allow ComEd to raise rates and charge an extra $156 million dollars a year. Governor Pat Quinn is vowing to veto the measure.