It's probably the phone being used as a modem with the limited bandwidth rather than the network now that I think about it.

It can handle one bitaxe, with two running nothing loads.

Our batteries are pretty much always charged and we just put up more panels.

Could be running way more appliances than we do.

No point being connected to grid because the daytime tax on feeding power into the grid makes it cost more than you get back.

An old secondhand inefficient aircon would be cheap, I've been keeping an eye out for one, people usually send them to landfill instead of selling unfortunately.

Just to dump excess power.

Eventually I'd like to do the same with another miner but the ones I got now don't draw enough power to worry about switching them off.