You don't have to be in China to get very very low electric rates.
Under 5 exists in the US in a few spots, even for "residential" usage, and I'm pretty sure you can get into that ballpark in a couple areas of Canada as well.
For that matter, there are 2 counties in the US that you can get under *3* cents/kwh for residential service.

Expecting big farms to not grow when they're profitable is DUMB.


There units don't need 10 power supplies - they don't eat AS MUCH power as the S9 does and use the same number of connections.
ONE power supply per unit is entirely viable, which would be *5* power supplies and outlets for the "minimum order quantity" - I have no clue where your "10" is comming from.