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How to read the Nest Energy History with the Nest app or on the Web

Your Nest Thermostat’s Energy History shows you how often and for how long your heating or cooling system has run, so that you can make smart choices about your schedule and temperature preferences. Energy History can be viewed on the Web or Nest app with your supported smartphone or tablet.

When your Nest Thermostat is connected to Wi-Fi and paired with a Nest Account, you’ll have access to a detailed energy summary for the last 10 days. Just launch the Nest app and click or tap on the Nest Thermostat icon. From there, select the Settings from the menu and you choose Energy History from the menu.

Energy History icons

A red bar shows that the system was heating. The number next to the bar it is the total time your system was on during the day.

On the left of the screen you’ll see the leaf icon for the days you saved energy and earned a Nest Leaf.

On the right, you’ll see the main reason that your energy usage went up or down (compared to the average of the 7 previous days). This can be your temperature adjustments, the weather, Away, or Auto-Away.

For more information about your energy usage on a particular day, tap that day for an expanded view.

At the top are your target temperatures. These represent the temperatures in your schedule as well as any manual adjustments you made on your Nest.

If you set your Nest to Away, or if Auto- Away has kicked in, you will see this icon at the beginning of the time you were away.

Tap or click on any icon to see more information.

Each red line represents the time interval that your heating was on.

At the beginning of each day, you can see what the temperature in your home was at midnight the previous day.

If you turned your Nest off, this icon will appear.

Click or tap on multiple days to compare the detailed energy usage for each day. This will show how your temperature choices influence your energy usage. Here’s an example of how Nest Energy History can help you save even more energy:

Lower your night temperature:

On this day, Nest was set at 20ºC from midnight to 7am. Each red bar indicates when the heat came on:

Now, look at the next day, when Nest was set at 18ºC for the same time period. The heat came on much less frequently, saving more energy:

Lower your Away temperature:

On this day Auto-Away kicked in shortly after 8am. The Away temperature is set to 16ºC:

The next day, after changing the Away temperature to 12ºC, notice how the heat didn’t come on at all during the same period:

Try turning down the temperature by a couple of degrees and see the effect it has on your daily energy use. Over time, you can learn what choices help you save the most energy.