Moehn joined Ameren as assistant controller in June 2000. He held a number of corporate and operational roles across Ameren until he was elected president of Ameren Missouri on April 1, 2014. In that role, he was responsible for Missouri's largest energy provider serving more than 1.2 million electric and natural gas customers across central and eastern Missouri, including the greater St. Louis area.
Before joining Ameren, Moehn worked at PricewaterhouseCoopers.
Moehn holds a bachelor's degree in accounting from Saint Louis University, a master's degree in business administration from Washington University in St. Louis, and a certificate in Nuclear Reactor Technology from the Massachusetts Institute of Technology.
Moehn is dedicated to serving the needs of his community. He is chairman of the board for the Urban League and serves on the board of directors for Concordance Academy of Leadership, Midwest BankCentre, the St. Louis Police Foundation, Lewis and Clark Community College, and the Electric Power Research Institute (EPRI). He also sits on the United Way of Greater St. Louis executive committee and was past chairman of the board for United Way of Greater St. Louis.