Sense Flex Home Energy Monitor Review – Does It Work?

Last updated on August 12th, 2022 at 05:09 am

After owning it for several months, I wanted to share my Sense Flex Home Energy Monitor Review.

Opening the electric bill every month became a painful chore. Regardless of what I did, which included keeping unnecessary lights turned off, shades closed in summer, and intelligent thermostats, still it seemed my electricity was through the roof.

Consequently, that did not yield the results I was hoping for concerning savings.  I did some quick research on the internet and became aware of several energy monitors. Most of my research on home energy monitors still left me wondering Does the Sense Energy Monitor Work?

They say knowledge is power, and I was looking to acquire more knowledge on the source that uses so much power in my home. That search leads me to the Sense Energy Monitor. I wanted to write my own energy monitor reviews based on my hands-on experience.

What is a Sense Home Energy Monitor?

Sense Home Energy Monitor gives you real-time information regarding your electrical consumption.  Sense monitoring takes advantage of the fact that every electrical device has its unique signature. Sense has created a unique way to display and detect how much energy a home or cabin consumes.

When you turn on an electrical device in your home, the device will capture the signature then Sense will analyze and compares it against a database. I know it’s a simplistic overview, but it is more complex than it sounds. False or duplicate identification of devices does occur and will be annoying at the beginning.

The process to analyze the unique signature is not a fast process. Three days before, the app identified its first appliance, the refrigerator. Then, slowly more loads came into the app.

Sense Monitor App allows you to confirm the detected electric load based on the probability it has the right one.

The Sense Energy Monitor will display that information using interactive bubbles in an app.  In addition, one can see the wattage your whole home is drawing from the grid in real-time. Sense Monitor offers additional CT as a separate addon or as part of their Sense Flex package to monitor your solar panels production. I added solar after the initial purchase, but it was easy to add to my existing unit.

Install to Electric Breaker Panel

I am not an electrician but installing Sense requires the removal of the breaker panel cover. The entire household wiring runs to the individual breaker for the dryer, water heater, and lights with the panel off.

I have a healthy respect for electricity. If you do not know the difference between a Phillips or flat-head screwdriver, get some help. It is not a difficult task for most DIY’ers.

The instructions are straightforward, and support from Sense is excellent from my experience. The one thing I’ve read is to make sure the CT clamps fit securely around main power leads from utility connect.

It can get cramped in some breaker panels. Also, the Sense capture box and CTs installs on the main breaker panel, not sub-panels downstream.  All data gets transmitted via WIFI, so the main breaker panel needs a decent signal from the wireless router.

Detecting Home Electrical Consumption

Once I had the app downloaded on my phone and created a free account, I was good to go. Sense has what I call a bake-in time before identifying loads from the grid. The process took at least 4-5 days before notifications showed on the app. Once an electrical load is detected, you will receive information on your phone. For example, Sense has detected a dryer.  You confirm the event, and the load will show up in-app.

In some cases, it was spot on in detection. My wife got annoyed with me asking her if she turned a light on or ran the dishwasher. It is all part of the process to see the different loads of electricity consumed.

The detection is OK. But not great. Sometimes. It would detect but then never show up again. The summary will assess how much electricity each appliance uses. There’s also a real-time graph that will show your current energy usage.

How To Use This Data to Trim Electric Consumption

Now that you have all this energy use data. How can it help you save on electricity? You can combine the Sense home monitoring with smart plugs from Wemo and Kasa. The Sense Energy Monitor will essentially speed up identifying the load source for the outlet plug.

I noticed a spike of 500 watts every 30 minutes all day. With the help of Sense, I soon realized my water cooler’s hot water switch was on. Over 24 hours, it was almost 10 kwh a day.

Another example includes evaluating energy usage from phantom loads such as TV, chargers, nightlights, and other electronics. With Sense monitoring and smart plugs, I can get an idea of energy consumption.

In the smart plug app, it’s possible to schedule these plugs off when not used. I have a smart plug on the big screen TV to turn off overnight and most of the day.

It may not seem like a lot, but I can add up over months and years to keep a status light-lit. If your TVs have an energy savings mode, consider using it.

Another energy use hog I found using Sense was my 55-gallon electric water heater. It was getting old and combined with our hard water, it became highly inefficient.

I could replace the unit with an efficient EnergyStar-rated model before ultimately leaving us without hot water.

Sense Flex Home Energy Monitor

Conclusion

Is Sense Home Energy Monitor worth the money? In my case, yes, for a couple of reasons. Sense provides helpful insight into my home’s energy consumption.

I was able to take tangible actions to curb usage and verify via my electric bill’s usage comparisons to years past. In addition, I caught a faulty water heater in time before going out.

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