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Save energy, stay comfortable, help keep energy costs down, receive a $50 "sign-up" bonus AND earn $25 annually! It's easy. Just enroll using the ecobee app and let your qualifying smart thermostat do all the hard work.

Purchase a Qualifying Thermostat

Ameren Missouri's Peak Time Savings program, powered by eco+, helps you save in a few ways.

about_the_program
About the program. This season, the Ameren Missouri Peak Time Savings program is partnering with ecobee to help reward you for using less energy when everyone else is using more. When you sign up, the Peak Time Savings Program uses eco+ to automatically adjust the temperature during these peak periods, while keeping you in control. As a thank-you, the Ameren Missouri Peak Time Savings Program will reward you with a $50 sign-up bonus for participating and $25 annually.
peak-time-savings
Peak Time Savings Event. There may be a few days in the summer that create a heavier demand for energy. To ensure everyone's energy needs are met efficiently, we'll announce a Peak Time Savings Event to reduce demand where we can. These events pre-cool your home when energy demand is lowest and limit your air conditioning usage during the event. This helps you stay comfortable before, during and after the event, while conserving energy during those peak times. You'll always be notified when an event is scheduled.
effortless_comfort
eco+ Savings Slider. The Savings Slider allows ecobee to capture your savings and comfort preferences. This slider will determine the degree to which your ecobee will optimize energy consumption to deliver savings. The Savings Slider will also determine how much precooling and setback your home will experience during an event.
make-a-difference
Make a Difference. The Ameren Missouri Peak Time Savings Program is an easy way to contribute to a smart energy future, reduce your carbon footprint and keep energy costs more affordable for everyone without ever lifting a finger!

Make a Difference

Earn $50 just for signing up!

Your thermostat already does a lot to keep you comfortable and conserve energy. But now Ameren Missouri Peak Time Savings Program is here to help your thermostat do even more. By understanding how your home uses energy, the weather in your area, and your unique comfort settings, Peak Time Savings uses its cutting-edge technology to create the most energy-efficient schedule for you and your family. Peak Time Savings easily fits your lifestyle to help you save the most while still keeping you comfortable.

How it Works

  1. Make sure that your home's cooling system is operated by a qualifying WiFi-enabled smart thermostat. (See our FAQ page for a list of qualifying smart thermostats.) Don't have a smart thermostat? You can purchase one at the Ameren Missouri Online Store and install it.
  2. If you have not yet enrolled in eco+, complete your enrollment in the Peak Time Savings program by first accepting eco+ in your ecobee app. Next, follow the prompts in your ecobee app to identify yourself as an Ameren Missouri customer and finish enrolling in the Peak Time Savings program. If you have enrolled in eco+, go to your eco+ settings and enable your "Community Energy Savings". From there, you can follow the prompts to complete your Peak Time Savings enrollment. You may also call 1.877.215.5752 for additional questions.
  3. You will receive a confirmation email from the Peak Time Savings Program and then you are officially enrolled. You'll now receive $50 as a sign-up bonus.
  4. On a daily basis, the eco+ will incorporate your preferences along with information about how your home uses energy, the local weather, and your billing information to create a more efficient schedule that will maximize your savings while maintaining your comfort.
  5. On the rare occasions that demand on the electrical grid is exceedingly high - and only on Monday through Friday during the months of May through September - your smart thermostat will automatically adjust to circulate the already-cooled air in your home. These times are called 'events' and will only last a few hours before your smart thermostat adjusts back to your preprogrammed cooling settings.
  6. Within a month of the anniversary of your enrollment, you'll receive $25 in the form of a bill credit.

Participation Requirements

The requirements for participating in the Peak Time Savings program are as follows:

  • Customers must have Ameren Missouri residential electric service to participate.
  • Ameren Missouri residential electric customers who have individual, dedicated HVAC systems with furnaces and/or central air conditioning (including air, single stage and ground source heat pumps as well as ductless systems) are eligible. Homes featuring only window A/C units as their cooling source, boiler or radiant systems, line voltage systems, multistage heat pumps or homes with HVAC systems that are shared between units or centrally controlled may not participate.
  • Customers must have or purchase an eligible thermostat - ecobee3, ecobee3 lite, ecobee4 ecobee SmartThermostat with voice control, Google Nest Learning Thermostat (any generation), Nest Thermostat, Google Nest Thermostat E, Sensi Smart Thermostat, or Sensi Touch Smart Thermostat.
  • Any smart thermostat(s) participating in the program must be connected to Wi-Fi within the home.
  • Any smart thermostat(s) participating in the program must connect to and control a central air conditioner, air source heat pump, ground source heat pump or ductless system.
  • All smart thermostats in the home must be from the same manufacturer and be participating in the program.
  • There can be no additional thermostats controlling temperature within the home.
  • Net metering customers are not eligible.
  • Customer's account must not be in the Medical Equipment Registry.
  • Agreement to the program Terms and Conditions which can be found here.

Frequently Asked Questions

Overall

How do I sign up for eco+?
If you have not yet enrolled in eco+, complete your enrollment in the Peak Time Savings Program by first accepting eco+ in your ecobee app. Next, identify yourself as an Ameren Missouri customer and follow the prompts in your ecobee app to finish enrolling in the Peak Time Savings program. If you have enrolled in eco+, go to your eco+ settings and enable your "Community Energy Savings". From there, you can follow the prompts to complete your Peak Time Savings enrollment. If you need to purchase a qualifying thermostat visit the Ameren Missouri Online Store.
How is this different from just having a smart thermostat?
The Peak Time Savings Program makes your smart thermostat even smarter. Most smart thermostats offer custom schedules, but these schedules often do not account for variations in weather, how your home uses energy, Peak Demand events, or energy pricing. Peak Time Savings Program learns your preferences and proactively manages your thermostat daily to meet them, all while keeping your home comfortable.
What thermostats are eligible?
The following thermostats are eligible for the program: ecobee3, ecobee3 lite, ecobee4 ecobee SmartThermostat with voice control, Google Nest Learning Thermostat (any generation), Nest Thermostat, Google Nest Thermostat E, Sensi Smart Thermostat, or Sensi Touch Smart Thermostat.
Can I use my existing ecobee thermostat?
Yes! You can enroll your existing thermostat in the program. If you have not yet enrolled in eco+, complete your enrollment in eco+ by first accepting eco+ in your ecobee app. Next, identify yourself as an Ameren Missouri customer and follow the prompts in your ecobee app to finish enrolling in the Peak Time Savings program. If you have enrolled in eco+, go to your eco+ settings and enable your "Community Energy Savings". From there, you can follow the prompts to complete your Peak Time Savings enrollment.
What if I don't have a qualifying thermostat?
If you don't have a qualifying thermostat, simply visit the Ameren Missouri Online Store. There you can select and purchase a qualifying thermostat.
What do I get for participating?
You will receive a one-time $50 sign-up bonus for enrolling your thermostat into the Peak Time Savings Program. Additionally, you will receive $25 each year you continue to participate in the Peak Time Savings Program. Each qualifying thermostat is limited to one $50 sign-up bonus, so if you purchase and enroll a new ecobee thermostat through the Ameren Missouri Online Store, you will receive the sign-up bonus as an instant rebate at time of purchase. Should you unenroll and decide to reenroll at a later date, you will be eligible to receive the annual incentive based on your new enrollment date, but cannot receive the sign-up bonus again.
When will I receive my incentive?
When you enroll your existing thermostat in the program, your sign-up bonus check will be received within 4 weeks of completed enrollment. In addition, for continued participation in the Peak Time Savings Program, the annual incentive will be received within 4 weeks of the anniversary of your enrollment.
Who do I contact if I have additional questions?
If you have questions or require assistance, then email the program at savings@amerenmissouri.com or simply call the Peak Time Savings Program at 1.877.215.5752.
I’m on a time of use (TOU) rate. Can I join the Peak Time Savings program?

Yes! Customers on TOU rates are encouraged to join the program. On days when a Peak Time Savings event is called, we reduce your electric consumption during hours where overall energy use is high, which typically align with TOU rate peak periods when electricity is more expensive.

If you’re on a TOU rate, you’re probably already trying to shift your energy use out of high-demand hours. With Peak Time Savings, the program will manage this energy shifting for you, cooling your home before high-demand hours start, then reducing your use during the more expensive hours.

Event Questions

What is a Peak Time Savings event?
On certain days during the summer, the Peak Time Savings Program will run an event to save energy during high demand times. During these events, the Peak Time Savings Program will manage your cooling schedule to reduce the runtime of your HVAC system when there is the most demand for energy. To ensure your comfort, we cool your home in advance of a Peak Time Savings event when energy demand is low. By doing this, we can prepare your home for the Peak Time Savings event to keep it comfortable while your air conditioning is off during the Peak Time Savings event.
When could an event occur and how often?
Events can occur Monday through Friday in the months of May through September. Typically, events are called in the late afternoon. Up to 10 events can be called each summer. Peak Time Savings Program events can last up to four hours.
How do I know when an event is occurring?
The program will send an email to you let you know that an event is planned the same day as the event is scheduled. The program will also send an email letting you know when an event is beginning and ending.
Can I adjust my thermostat during Peak Time Savings Events?
The Peak Time Savings Program takes into consideration your comfort preferences and will always operate within your eco+ "Savings Slider" settings to make sure you and your family stay comfortable throughout the event.

You can opt out of an event at any time by setting a hold on your ecobee or tapping on the eco+ icon. You can also call the Peak Time Savings Program at 1.877.215.5752. Ameren Missouri reserves the right to remove participants from the Peak Time Savings Program or make the customer ineligible for the next annual incentive if they opt out of three or more events in the year.

eco+

What is eco+?
eco+ is a free upgrade that supercharges ecobee thermostats for maximum efficiency with minimal effort. Simply select your preferred savings level from 5 options and sit back and relax as your thermostat’s schedule and settings are optimized for you. All ecobee devices that are eligible for Peak Time Savings are compatible with eco+.
Will eco+ make any changes to my comfort settings?
No, eco+ will not make any changes to your Comfort Settings. eco+ will optimize your smart thermostat's performance based on your Comfort Settings, schedule, and your eco+ savings preferences.
Can I participate with my ecobee in Peak Time Savings without eco+?
No, customers must agree to eco+ to be eligible to participate in the Peak Time Savings program.
Where can I find more information on eco+?
You can learn more about eco+ on their website here.
Why should I set my smart thermostat schedule?
Setting your smart thermostat schedule will help us understand how you like to keep your home. Do you like it a little warmer in the morning? A little cooler at night? Adjust your schedule to reflect these preferences, and we'll do the rest.