Renewable Energy and Hydraulic Power

I have many years of research in the combinations of natural resources and have now put this innovative approch to this basic question, What if a power source is known that can power a steam power plant with a system of hydraulic pressure and storage tanks 4, tanks per hydraulic turbine that mantain the 2 stage pressure to drive the same generators that are in a steam plant from natural resources. Most people know that the biggest damange is done by the heat from the oils. This is needed to help maintaine the power output at night, ON DEMAND POWER.

Question 1. how to determine the PSI for 1 hose power ratio, Lets say the generators takes 80 horse power then what is the PSI storage required to mantaine the speed constant.