(HERRIN, IL) — Representatives from Ameren Illinois will name Herrin as a “Progressive City” during an event Thursday morning at 11 at Herrin City Hall. It’s located at 300 N. Park Ave. Herrin is one of nine cities throughout the Ameren Illinois service territory to receive the designation for its success in implementing forward-looking initiatives to better the quality of life for residents and businesses. The completion of 101 residential and business energy efficiency projects between June 1, 2015 and May 31, 2016 generated more than $150,000 in annual energy savings.