Calculate the average power in kW that can be generated in a hydro-electric project from the following data
Catchment area = 5 x 109 m2 ; Mean head, H = 30 m
Annual rainfall, F =1.25 m ; Yield factor, K = 80 %
Overall efficiency, noveall = 70 %
If the load factor is 40%, what is the rating of generators installed?