What is the cost of raising the water pressure to 3206 PSI? That would have to be subtracted to get a final cost per unit, wouldn't it?
you are correct in pressurizing the water does add cost in both running the pumps and in the heavier and more costly equipment. Even with this cost, the savings in fuel for a big plant still pays.
I think this is the reason that small plants typically are not supercritical. They don’t burn enough coal to pay for the extra cost.!