You'll need to plug it to a 20A circuit not to blow the fuse, in North America at least. Unless your computer is a server, I don't really understand the need for a 2000W power supply. You could plug enough graphic cards on that thing to play Crisis on a quad 4K monitor setup, but who does that?
Anyone who needs to supply that much power to a computer to do some professional work (like rendering) will, or at least should, have the common sense to opt for redundant power supplies, not a single one like that.
I applaud the achievement of building what seems to be a very well made power supply unit, but I don't see the need it answers. 1600W is the top a non-redundant PSU should be.