Correct me if I’m wrong but if you are running the appropriate gauge wiring on 30amp breakers you can easily run an s9 on 110v.
Most residential circuits in the US use wiring and breakers sized for 15 amps INTERMITTANT service at 117 VAC.
Some "kitchen" outlets, and most A/C outlets are sized for 20 amps at 117 VAC but those are not all that common outside of kitchens.
When operating equipment 24/7 the NEC requires you to derate the circuit by 20% - so that "15 amp" circuit in CONTINUOUS USE like with a miner becomes a 12 amp circuit for safety reasons.
30 amp wiring at 117 VAC pretty much doesn't exist in the US - higher power appliances and equipment is designed to use 208v (industrial split out from a 3 phase circuit) or 234 v (standard "use both hots on a standard split-phase residential or SMALL business feed) instead.
Yes, IN THEORY you could have a 30 amp 117 VAC feed wired up and run an S9 from it - but in practice, if you're going to have such a RARE feed setup installed (and good luck finding OUTLETS for it, anything over 20 amps in the US is specifically intended for use on 234 V - there is no such thing as a NEMA 5 outlet at higher than 20 amps) you'd be better off just having a STANDARD 234V circuit and outlet(s) installed instead.