So 180 degrees C minus 10 degrees C equals 170 degrees C. More than enough to transfer heat to a binary fluid that boils at 70 degrees C. It may not be as good as GDY but it is not a competition. If BHP requires 690MW, I am sure there is room for GRK and GDY. If not, GRK can always sell directly onto the grid. After all, the national power grid is only 8 kms away.
