The “Heater” was turned off....the electric flow that keeps it hot. Geez....
So they pay you, so that they can remotely turn off your hot water heater, OK.
I'm a little surprised that they find that cost effective, as that is such a low use time of day to begin with. Do they pay anything for going old school and just having a timer at your residence that you can override when needed, and turn off completely when you are gone for a few days?