You can also use @jpansarasa’s custom device type for the Aeon switch. He has added some nice options, including the ability to disable the on/off function of the switch. When that is set, the switch in ST can be tapped, but it doesn’t affect the device itself.
The device type is also written specifically for the Aeon instead of the generic Z-wave energy monitor type. It appears to do a better job at keeping the device active, which seems to affect whether the device will send updates on power to ST automatically.
I was setting up two of these switches to monitor my washer and dryer today, and his device type worked like a charm. The downside is that being a custom device type, it won’t run locally at this time, which means that without internet, any smart apps using the device couldn’t run. But if you’re talking about notifying yourself on something, then odds are the notification won’t happen without internet anyway (unless it’s something local, like a light).