Skip Ribbon Commands
Skip to main content

Central AC Cycling

When you join ComEd’s Central Air Conditioning (AC) Cycling Program, you can stay cool, earn up to $40 dollars in bill credits from May 1 – October 31, while also reducing energy usage during the hottest days of summer. This program is available to customers who own their own home and have central air conditioning.

mother and daughter reading a book

We can install a direct load control (DLC) switch at your home. Cycling is only done when needed, and it may occur on any day for a limited period of time.

It's Easy to Join!

If you own your home and have central air conditioning, you can enroll in ComEd’s Central AC Cycling Program. Customers cannot participate simultaneously in ComEd’s Central AC Cycling and Peak Time Savings programs, but Hourly Pricing customers can participate, and may further optimize their savings by enrolling in Load Guard.

AC Cycling Audio Transcript


Learn more about ComEd’s AC Cycling Program (pdf).

Device Options

Due to Nest’s program support changes, ComEd has discontinued its Nest Thermostat option of our AC Cycling Program because Nest’s changes cause our program to be incompatible with your Nest thermostat. We apologize for any inconvenience this may cause. If you are interested, ComEd has similar programs that you may be eligible for and can help you save money and energy. Learn more.

Direct Load Control Switch

The DLC switch, which ComEd will install on the side of your home or directly on the air conditioner's compressor panel, allows us to turn the compressor off, so it safely uses less energy during a cycling event. Your air conditioner’s fan may remain on to circulate cool air to keep your home comfortable.

50% option
Time:Any day of the week, (from May 1 – October 31), between 9 a.m. and 9 p.m.
Unit cycles off:Maximum of 15 minutes every half hour, for up to 12 hours (if needed)
Monthly Credit:$5 credit per month, per household, June through September
Total Potential Seasonal Bill Credits:$20
100% option
Time:Any day of the week, (from May 1 – October 31), between 9 a.m. and 9 p.m.
Unit cycles off:Up to 12 hours for a full air conditioning interruption, (i.e. turns air conditioner off), or can be cycled for up to 12 hours like the 50% cycling option at ComEd’s discretion
Monthly Credit:$10 credit per month, per household, June through September
Total Potential Seasonal Bill Credits:$40

If someone in your household is home during most of the day or has a medical condition, the 100% option is not recommended.

Enroll by phone: 1-800-986-0070

Which Program is Better for Me - Central AC Cycling or Peak Time Savings?

Both ComEd programs offer summer bill credits and are built upon the customer’s ability to reduce energy usage when energy demand is high. Most customers earn larger bill credits on Central AC Cycling than they would on Peak Time Savings, but these programs differ in several important ways.

 Peak Time SavingsCentral AC Cycling
Summer Bill Credits Yes

Varies based on energy management during peak days. Average bill credits fall between $10-$20. Potential to earn more than $40 total


$5/per month (50% Option) - $10/per month (100%) Option)

Certainty of Receiving a Summer Bill Credit No Yes
Requires Central AC Unit No Yes
Requires Switch Installation on Central AC Compressor (no cost to you)
No Yes
ComEd Performs Energy-Saving Actions Automatically (no need to be home) No Yes
Participant Manages All Energy-Saving Actions Yes No
Can Leverage Smart Technologies and IFTTT* to Increase Bill Credit Amounts Yes No

*Customers can choose between either program but cannot participate in both simultaneously

Further Questions about Central AC Cycling?

Visit the Central AC Cycling FAQs page for quick and easy answers to the most common Central AC Cycling program questions. If you have any additional questions, you can contact us via email: or call our Central AC Cycling support line, 1-630-437-3195 (supported Monday through Friday 9 a.m. – 4 p.m.). Voicemails will be returned as soon as possible.

 Content Editor

Heating & Cooling

Woman checking thermostat

Get discounts on efficient equipment for your home!

Create a Home Full of Savings

family playing
Get free energy-saving products with a Home Energy Savings assessment.
© Commonwealth Edison Company, 2023. All Rights Reserved.