[pupdogg]

You can run a setup of 8x 4090 GPUs using 4x 1200W 240V power supplies (preferably HP HSTNS-PD30 Platinum Series), with a collective use of just around 20-amps, meaning it can easily run on a single 240V 20-amp breaker. This should be easily doable in a home where you typically have a 100 to 200A main power panel. Running 4x 1200W power supplies 24 hours a day will consume 115.2 kWh per day. At an electricity rate of $0.12 per kWh, this will cost approximately $13.82 per day or around $414.72 per month.

FYI, I can handle electrical system design and sheet metal enclosure design/fabrication for these rigs, but my software knowledge is limited when it comes to ML. If anyone's interested, I'd love to collaborate on a joint venture to produce these rigs commercially.

[google234123]

In Cali isn't now like 0.5 per kWh :P

[pupdogg]

Wow!

[XMasterrrr]

Yeah, you get it. I am using 3x 1600w 240V Platinum PSUs from Superflower (They're the manufacturer of EVGAs PSUs. Top notch stuff, did my homework) I however decided against server PSUs like the one you suggested because the extra setup overhead + noise.

As I mentioned in my reply to OP, very doable as long as you do your research. The only thing I did not do was not doing the installation itself because I was not comfortable with it, but I pretty much had everything named to the contractor, and even how I would have gone about the installation process was exactly how he did it.

Hit me up on Twitter or Email, we can chat ideas about this venture

[swader999]

You'll have helicopters over your house.

[pupdogg]

Believe it or not, a buddy of mine was dealing with crazy high power bills for three months and couldn’t figure out why. He tried everything to cut back, but nothing worked. Finally, he called an electrician, who found a hidden short in a 30-amp circuit that was constantly drawing power without tripping the breaker. After fixing the issue, his bills went back to normal—no helicopters were involved during the process!

[w-ll]

Good thing i can see them coming, and happy to offer anyone a cup of coffee/tea to understand im just the biggest nerd in the hoa.

[defrost]

Already have to deal with Robinson R22's during mustering season, a few more won't hurt.