That is pretty cool.
I assume there is a monthly fee for a device you may never use
Need to look into buying one.
When I am home, I have a checklist (you knew that was coming right) for using my generator to power the house without risking frying a technician working on the power poles in the neighborhood. DW never wanted to tackle it, so in the "bad old days" she went to whichever relative had power.
Basically, I have a 220 socket that my generator plugs into via a special 100 foot cable I made up just for the purpose. I trip the main coming into the house; trip all the breakers that are not critical and plug in the generator and start it up.
The downside to my method (and the generlink if I read it correctly) is that when the power comes on in the neighborhood you won't know. My generator ran all night when the power came on just 15 minutes after I went to bed.
Neighbors were not happy since my 6500 watt generator sounds like a 747 when running.