A/C Technology

Keep your device set to save.

All PeakRewardsSM Air Conditioning program participants have a professionally-installed programmable thermostat or outdoor switch at their home. These devices are what receive the signal to start cycling your air conditioning on and off when energy demand has hit a peak. To ensure your PeakRewards programmable thermostat or outdoor switch is connected and you receive your summer bill credits, please make sure the serial number of your installed device matches BGE’s records.

How to find your device’s serial number.

ecobee3 Lite Thermostat
ecobee3 Lite Thermostat

The serial number will be a 12-digit number starting with 411. You can also access this information by following the same steps on the ecobee app.

  1. Tap the Menu icon
  2. Scroll down and select “About”
  3. Select “Serial Number”
Honeywell Thermostat
Honeywell Thermostat

To find the serial number on your Honeywell device, check the barcode label on the bottom of the faceplate. The serial number will be nine digits long — most likely starting with 400, 410, 443, 510 or 520. If you can’t locate or read the printed serial number information, proceed to the steps below.

  1. Press the SYSTEM button on thermostat screen
  2. Press and hold the blank box next to the CANCEL box (far right corner of the thermostat screen) until the serial number appears on-screen
  3. Hit DONE to exit

NOTE: “Write Protected” may appear on screen briefly after Step 2. This has no impact on the thermostat’s function.

Outdoor Air Conditioner Switch
Outdoor Air Conditioner Switch

The switch serial number starts with 409 and is located on a sticker on the top of your device.

Have more than three devices?

Please contact the PeakRewards hotline at 1.888.309.PEAK (7325) Monday – Friday, 8am – 5pm and we’ll confirm all device serial numbers.