View All Energy Efficiency Programs
An easy way to make your smart thermostat even smarter

The Peak Time Savings program works to save you money and energy by syncing with your home's smart thermostat to make slight, temporary adjustments during demand response events. These events are periods of high electricity demand when energy prices are higher than usual. By anticipating these demand response events and pre-cooling your home accordingly, Peak Time Savings not only helps reduce energy usage and costs but ensures that you stay comfortable throughout the event. Plus, you have the option of opting out of events.*

Your thermostat is $0 when you include the Peak Time Savings Enrollment Bonus.

*Opting out of too many events may lead to removal from the program.

Ameren Missouri Instant Discount $50
Peak Time Savings Enrollment Bonus* $50
Promotion Discount (Limited Time Offer) Promo $$
Annual Appreciation Bonus $25

*The instant rebate and the manufacturer discount do not apply if you already own your smart thermostat. However, you can still qualify for the Peak Time Savings sign-up bonus and annual appreciation bonus.

To participate in the program, you must be an Ameren Missouri electric service customer and have a smart thermostat installed in your home. Your smart thermostat can be one you already own or one that you purchase from one of the manufacturers.

There will be a slightly different customer experience with the Peak Time Savings program depending upon which thermostat you use.

ecobee smart thermostat set to 68 degrees
ecobee
Participate in Peak Time Savings, through ecobee's eco+.

Purchase a qualifying ecobee smart thermostat and begin your enrollment.

Download the ecobee+ app to complete.

Learn more in our FAQs.

Google Nest smart thermostat set to 68 degrees
Google Nest
Participate in Peak Time Savings, powered by Nest Rush Hours Rewards.

Purchase a qualifying Google Nest smart thermostat and begin your enrollment.

Complete your enrollment with your existing Google Nest smart thermostat.

Learn more in our FAQs.

Emerson Sensi smart thermostat set to 68 degrees
Emerson Sensi™
Participate in Peak Time Savings with the simply smart Emerson SensiTM.

Purchase a qualifying Emerson SensiTM smart thermostat and begin your enrollment.

Complete your enrollment with your existing Emerson SensiTM smart thermostat.

Learn more in our FAQs.

Peak Time Savings Thermostats
ecobee Nest Sensi
Enrollment Method Through app only. Enroll by visiting amerenmissouri.com/peaktime-nest and following the prompts. Enroll by visiting amerenmissouri.com/peaktime-sensi and following the prompts.
Energy Efficiency eco+, not optional. Savings volume is adjustable via eco+ slider. Seasonal Savings, optional. Not adjustable. Energy Efficiency Days, not optional. Not adjustable.
Event Opt Out Call customer service via the phone number on the event notification
OR
Make four temperature adjustments on your thermostat during the event.
Call customer service via the phone number on the event notification
OR
Adjust your thermostat during the event.

Device will alert you that you are participating in an event and that continuing to adjust the temperature will opt-out.

Call customer service via the phone number on the event notification
OR
Adjust your thermostat during the event.

Device will alert you that you are participating in an event and that continuing to adjust the temperature will opt-out.

How it Works
  1. Purchase a qualifying smart thermostat and install it in your home.
  2. Complete your enrollment by selecting "Complete your enrollment" underneath the manufacturer of your smart thermostat above.
  3. The Peak Time Savings program syncs with your smart thermostat to understand what keeps you comfortable and how your home uses energy.
  4. On very hot days when demand for energy peaks, the program may schedule a Peak Time Savings event.
  5. Prior to the event, your smart thermostat automatically pre-cools your home to ensure your comfort, then lowers your energy usage slightly during the peak period to conserve energy.
  6. Your smart thermostat adjusts back to your preprogrammed cooling settings once the event is completed.

Events last no longer than a few hours and only occur Monday through Friday during the months of May through September. The best part? Once you enroll, you don't have to do a thing. Your smart thermostat does all the work!