Over here, sell it to the grid, if they want it at that particular period during the day, for between 2c and 5 cents, which is the same period as cheap EV charging is available, at around the same price .....
Then 10% GST applies going into the grid and back out of the grid, then the charge for just having the power connected to the house, a bit over $1 day per meter in some cases, off peak hot water has its own meter as does any other off peak power from storage heating and cheap EV charging, ... well as the meter that they pay you for the export to the grid power .......the household supply meter has time of day pricing ..... and all of that has another 10% GST thrown on top.
They do now have back to base meters that save them paying a meter reader, that can differentiate between off peak hot water and house load and sometimes back to grid supply ..... but you have no idea if they have decided they don't need you solar feed in today and switch off the solar being accepted ..... or if they actually did take the power but decided they weren't going to pay you ..... or there was a "Glitch" in the system ....... unless you have your own meter as well, you just don't know .....
It was one of those "back to base" meters "we suspect" started the power box fire that burnt the house and motorhome to the ground .... but it could have been a poor connection when the meter was installed .... who knows, but the fire pattern leads back to the powerbox, but no one is game to take on the state power network in a court battle, even the insurance company ...... so, there will be no grid power connected to our new house .... if we actually rebuild that is ......
T1 Terry