....And statements that assert that substandard performance at 110 volts is not a problem because customers can always host in a datacenter instead of running their machines in a home or office environment are disingenuous. ...
At 3kW, you won't be running on a standard home/office circuit anyway. (North-American plugs are generally limited to 12-15 amps of continuous draw (1320W-1650W at 110V, power factor of 1.0)
Edit: I suppose you can hook it up in the kitchen where the outlets generally have two branches (The SP30 does have two supplies).