really depends on yer long term plans but make sure u have a licenced electrision do the work. use wrong wiring or breakers and itll burn the house down. personally i say find an apartment building that includes hydro and put 6 units in each

(1 per circiut) save 600$ a month on hydro pay maby 800 in rent

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I would also recommend getting an electrician to do the work of a sub-panel. Wire size / length, circuit capacity and getting a safe / neat install are important. And make sure that the main breaker from the utility is not increased unless your feed is also increased. I would also recommend that you go 220v circuits if possible since there is less loss over the length of the wires. Probably easiest to put in 30A 220v circuits which would support 5 S9 miners. Remember to get your wired internet connection setup well too.