I want to lift water just one meter height. Suction lift will be zero and discharge lift will be one metre?

I want to lift water to one metre height, Suction lift will be zero and discharge lift will be one metre. I want to lift 500 litres per second. what will be energy consumption if I am using electric motor of 80% efficiency. What will be the diameter of the discharge tube if the efficiency of the pump is 75%.