Electricity Needs for a 3MW Mining Farm

hey, quick question about power needs. what kind of transformer do I need for a 3MW mining farm in the US?

Typically, you get the transformer from your utility company, as long as they can supply that much power.

Yeah, you’ll most likely need a special contract with the power company. You can’t just use a regular residential plan. The contract specifies how much power they’ll deliver and what it’ll cost. Sometimes, more power doesn’t mean cheaper rates.

Mining usually happens where energy’s cheap. Texas is one of those places with some of the lowest kilowatt hour prices in the States. But what about the type of transformer they use?

There's rising tension around mining due to high power usage and noise. If you’re planning a big operation, you might not be super welcome.

I don't get why they’re angry. It’s more customers for them, and miners typically set up in areas where noise is allowed. It's just like running a data center. It would be foolish to ban something that creates wealth, especially since it’s cleaner than many other industries.

Aside from getting a transformer, it’s smart to make a deal with an electricity provider. They can help set everything up and might offer better rates based on your agreement.

Just got back to this. A 3MW setup usually manages only 75-80% efficiency, so you’ll end up with about 2.25 to 2.4 megawatts. Many folks prefer using two 2MW transformers instead; if one fails, you only lose half the farm. For example, if you get two 2.0MVA transformers, you could run 1.5 to 1.6 MW on each, achieving a true 3MW farm.

Wiring is key here, especially since it’s high voltage up to the transformer. You definitely don’t want any fire hazards.

You don’t need the J+ for 277V. Bitmain kind of hides that they have PSUs for x19 family that support 277V: APW12A and APW121215g. The newer miners usually need the latter, but even the original S19 Pro can work with the former. They really should make this info clearer.