Xcel Energy AC Rewards: Is It Worth It?

The Xcel Energy AC Rewards program is a demand response initiative that offers Twin Cities homeowners a $25 annual bill credit in exchange for allowing the utility to subtly adjust their smart thermostat during periods of peak electrical demand. While the program successfully reduces grid strain during Minnesota’s humid 90°F summer days, the trade-off is a temporary 1 to 4-degree increase in your indoor temperature during these "control events."

How does the Xcel Energy AC Rewards program work?

When electricity demand peaks—usually on the hottest afternoons in July and August—Xcel Energy sends a signal to your connected smart thermostat. This signal slightly raises your AC's target temperature. By shifting the cooling load of thousands of homes simultaneously, Xcel avoids the need to fire up expensive, less-efficient "peaker" power plants.

For residents in Minneapolis and Saint Paul, this usually happens between 2:00 PM and 7:00 PM. The system is designed to be automated; you don't have to do anything manually. Once the peak event ends, your thermostat automatically returns to your original scheduled temperature.

What are the financial benefits for Minnesota homeowners?

The primary incentive for joining is the direct credit on your Xcel Energy bill. While it won't pay for your entire summer cooling costs, it is essentially free money for a minor inconvenience.

• Initial Enrollment Credit: Most new participants receive a one-time $25 credit upon successful activation.
• Annual Participation Credit: You receive a $25 credit every year you remain enrolled in the program through October.
• Thermostat Rebates: Xcel often offers separate rebates toward the purchase of a new smart thermostat (up to $50 or more), which can be stacked with the AC Rewards enrollment.

Which smart thermostats are compatible?

You cannot participate in the AC Rewards program with a standard non-programmable or older digital thermostat. The program requires a WiFi-connected device capable of receiving utility signals. The most common compatible brands we install during cooling service calls include:

1. Honeywell Home: Known for reliability and wide compatibility with Xcel’s software.
2. Google Nest: The most popular choice for modern smart homes.
3. Ecobee: Excellent for homes with remote sensors to balance temperatures.
4. Emerson Sensi: A great contractor-grade option for straightforward control.

If you have a high-end communicating system from Trane, Carrier, or Lennox, you may need to verify if their proprietary thermostats (like the Trane ComfortLink II) allow for third-party utility control, as some high-efficiency systems communicate differently than standard 24V systems.

Does the program impact home comfort during heat waves?

This is the most common concern for our customers in Edina and Woodbury. Minnesota summers are notoriously humid, and a 4-degree swing can feel significant when the dew point is over 70.

Xcel Energy claims that most participants don't even notice the adjustments. However, if your home has poor insulation or an undersized AC unit, you will feel the difference. The utility typically adjusts the temperature by no more than 4 degrees Fahrenheit. If your thermostat is set to 72°F, it might move to 76°F for a few hours.

The "Pre-Cooling" Strategy You can mitigate the discomfort by "pre-cooling" your home. If you know a hot day is coming, set your AC a few degrees lower in the morning (e.g., to 68°F). This builds up a "thermal bank" of cool air and keeps your furniture and walls at a lower temperature, so when the 2:00 PM event starts, your home stays cooler for longer despite the setpoint adjustment.

Statistical breakdown of the program impact

To help you decide if the program fits your lifestyle, consider these technical and logistical factors:

• Event Duration: Typically 2 to 4 hours per occurrence.
• Frequency: Usually occur 10 to 15 times per summer season.
• Temperature Shift: Generally 1°F to 4°F above your current setting.
• Opt-Out Capability: 100%—you can override the event at any time by simply turning the dial back down.
• Minimum Equipment Requirement: Must have a functioning central air conditioner or heat pump.

Is it worth it for your HVAC equipment?

Some homeowners worry that these adjustments cause extra wear and tear on their Bryant or Rheem air conditioners. In reality, the program actually reduces the number of start-up cycles during the hottest part of the day, which can be easier on the compressor than short-cycling.

However, the program is not a substitute for professional maintenance. If your capacitors are weak or your coils are clogged with cottonwood, your system will struggle to recover once the control event ends. We recommend a full system tune-up every spring to ensure your unit can handle the stresses of peak demand periods.

Should you enroll in Xcel AC Rewards?

Pros: Direct savings on your utility bill. Helps prevent local power outages and brownouts. Encourages the use of energy-efficient smart technology. Easy to opt-out if you are hosting a party or feel too warm.

Cons: Potential for slight discomfort during humid afternoons. Utility has limited remote access to your thermostat settings. * The $25 credit is relatively small compared to potential energy bill spikes from poor insulation.

If you are comfortable with technology and don't mind a few hours of slightly warmer temperatures a dozen times a year, the program is a "no-brainer." It’s a simple way to contribute to grid stability while getting a small reward.

If you are experiencing issues with your AC effectively cooling your home even without utility interference, it may be time for a professional look. Central Minnesota Heating & Cooling offers a flat $129 diagnostic fee, which is waived if you move forward with an approved repair. Whether you are in Plymouth or Hudson, WI, our technicians can ensure your system is ready for the next Minnesota heat wave.

Contact us today to schedule your annual maintenance or to discuss upgrading to a utility-compliant smart thermostat.