I used to work on the home energy monitoring space a decade ago. The most useful thing I ever heard of as a result of home electricity monitoring is that someone found a 100-W bulb that was always on.
If you have it connected to a major electricity consuming appliance, like a refrigerator, an electric dryer, or a furnace (whose fans use a ton of electricity), then in theory you can see any degradation in efficiency over time which may indicate that they need repairs. I doubt most people will do that.
For example, I'm pretty nerdy about energy use, and it took me 2 years to notice that the output of my house PV system had reduced 30% because of some trees that had grown taller.
Also, in the future, this sort of monitoring will likely be built into the appliances themselves.
There are also easier ways to achieve something like this, for example kill-a-watt meters.
If you have it connected to a major electricity consuming appliance, like a refrigerator, an electric dryer, or a furnace (whose fans use a ton of electricity), then in theory you can see any degradation in efficiency over time which may indicate that they need repairs. I doubt most people will do that.
For example, I'm pretty nerdy about energy use, and it took me 2 years to notice that the output of my house PV system had reduced 30% because of some trees that had grown taller.
Also, in the future, this sort of monitoring will likely be built into the appliances themselves.
There are also easier ways to achieve something like this, for example kill-a-watt meters.