The requested increase will raise the average $86 residential monthly bill by approximately 7% or less than $6 per month, the company said.

Anne Pramaggiore, president and chief operating officer of ComEd, said: “ComEd is making key investments to ensure that our region has a modern and reliable electric system, which is critical to economic development in this state.

“This rate filing is a necessary step to continue our ongoing work to provide reliability that is in the top quartile nationally, while keeping rates for our customers comparable to other major metropolitan utilities.”

The ICC will determine any increase in rates after an 11-month proceeding with input from all stakeholders. If approved, new rates will not take effect until June 2011.