Peak Time Savings FAQ

• Peak Time Savings is a voluntary program for Ameren Illinois residential electric customers with qualifying smart thermostats to ease energy demand without sacrificing comfort.

• When summer temperatures climb, demand for electricity increases and can cause strain on the grid. Ameren Illinois’ Peak Time Savings program is designed to help reduce energy use during times of high energy demand. This decreases the use of less efficient and more expensive power sources. That’s good for the environment, and it helps keep energy costs low for everyone.

• Participants agree to brief adjustments of 4 degrees or less to their thermostats during peak electric demand periods throughout the year. Adjustments to your thermostat will last no more than 4 hours.

• Adjustments will typically occur between 1-7pm CT, but may occur between 6am-10pm CT.

• Participants will receive a one-time $50 virtual prepaid Mastercard® per device after successfully enrolling in the program. In addition, participants will receive a $25 Prepaid Mastercard per device each year following the anniversary of their enrollment in the program.

To be eligible to enroll, you must:

• Be an Ameren Illinois residential electric customer and the electric service is in your name.

• Use a qualified internet-connected smart thermostat.

• Allow the program to make brief, small thermostat adjustments on days of high energy demand

• Not be currently participating in any other demand response program

You will receive a one-time $50 Prepaid Mastercard per device after successfully enrolling in the program.

You will receive your $50 Prepaid Mastercard within 60 days of being accepted into the program. The $50 Prepaid Mastercard will be sent to the email address used to register your smart thermostat.

You will receive a $25 Prepaid Mastercard per device following the anniversary of your enrollment for each year that you are enrolled in the program. The $25 Prepaid Mastercard will be sent to the email address used to register your smart thermostat.

You can find the program terms and conditions for all thermostat providers below:

• If you have an existing thermostat, please select your thermostat among the eligible models. Then, click the Enroll Now button to go to your thermostat’s enrollment site, where you will follow a series of simple steps to enroll.

• If you don’t have an existing eligible thermostat, please choose a qualifying model, purchase and install it. Once you have installed and activated, come back to enroll your new thermostat in the program.

Once your eligibility is confirmed by Ameren Illinois, you will be enrolled in the program. You will receive notification on your enrollment status via email using the address provided in your account registration.

Depending on your thermostat provider, notifications will appear on the thermostat or in your web/mobile application.

• At the start of an adjustment event, your thermostat will be automatically adjusted up to 4 degrees above the current temperature setting.

• The event will last no more than 4 hours.

• Prior to an event, your thermostat may be adjusted down slightly to pre-cool your home so that you remain comfortable while the event is taking place. Pre-cooling may not always occur if an urgent event is called.

During Peak Time Savings events, your thermostat will be adjusted by 4 degrees or less. Your participation is voluntary, and you will retain control of your thermostat. You can easily opt out of an event for any reason.

Yes. During an event, you can opt out from your thermostat, mobile device or web app.

Send an email to ameren-il@energyhub.com, requesting to end your participation in the program. Once you have been taken off the program, your thermostat(s) will no longer be enrolled and you will not receive the annual participation incentive.

Please email ameren-il@energyhub.com.