Focused forward on your energy service
Ameren Illinois has a 10-year Modernization Action Plan to better meet the electric service expectations of our customers in the 21st century. This action plan will allow us to invest an estimated $625 million to build a smarter grid and perform thousands of electric infrastructure projects.
These improvements will take place in addition to regularly scheduled construction and maintenance, so our customers can see benefits faster.
About formula rates for electric delivery
Our plan was made possible by the 2011 Energy Infrastructure Modernization Act, along with companion legislation. This Illinois state law established a new method of setting electric delivery service rates, called “formula” rate-setting, which retains strong consumer protections while allowing for more predictability.
What can I expect with electric formula rates?
Because the new rate-setting is performance-based, the ICC will hold Ameren Illinois accountable by regularly reviewing our Modernization Action Plan investments. If we do not meet our 10-year performance targets, we face financial penalties.
About rates for gas delivery
The rate process for changing natural gas rates will follow the traditional method. New gas rates take at least 11 months to change.
What can I expect with natural gas rates?
As required by law, additional cost recovery must be secured through the Illinois Commerce Commission. With the January 25, 2013 filing, we expect rate changes in late December. Read more.
What is the cost to me?
We are committed to openness and transparency. To help you understand how our rates work, we make available the electric rate estimator and the gas rate estimator to calculate your bills using current rates.
Use the electric rate estimator
Use the gas rate estimator