Ameren Illinois celebrates the fact that J.D Power named them number one in customer satisfaction in the Midwest among Large Electric Utility Providers. Richard Mark is the President and Chairman of Ameren Illinois and he gives credit to Ameren employees and their community-based approach to customer service...

It's an important milestone for Ameren as just 10 years ago they ranked 15 out of 16 Large Electric Utility Providers in the Midwest in the same J.D Power customer service ranking.