Can anyone pls help me to calculate the battery sizing. I have gone through various websites and have found different formulae and not able to decide which formula is effective. pls suggest a effective formula for battery sizing and also how to decide the system voltage.
The following are the formulae i have come across and i would appreciate it if anyone can verify them
Total KWhr load = Total No. of Load*Wattage of each unit*total No. of working hours
Solar PV Module Capacity = (Total KWhr Load)/4 Considering insolation to be 4 hours
Inverter Capacity = Solar PV Module Capacity
Effective Load = (Total KWhr Load)/(Inverter Efficiency)
Ampere hours per day = (Effective Load)/(System Voltage)
Total Battery Bank Capacity = ((Total Module Capacity)*(No. of backup hours))/((System Voltage)*(Inverter Efficiency)*(Battery deep discharge))