Solar Battery Sizing Calculator
Inputs
kWh
hours
%
V
%
Tab to move between fields
Results
Required Capacity
19.5 kWh
≈ 20 loads of laundry
Required Amp-Hours
407 Ah
Backup Energy Needed15 kWh
13.5 kWh Batteries Needed2
1
Identify Input Parameters
5 parameters
= Daily Energy Usage = 30, Backup Duration = 12, Depth of Discharge = 80, Battery Voltage = 48, Inverter Efficiency = 96
= 5 input(s) provided
2
Calculate Required Capacity
Required Capacity
= 19.5
= 19.5
3
Calculate Required Amp-Hours
Required Amp-Hours
= 407
= 407
4
Calculate Backup Energy Needed
Backup Energy Needed
= 15
= 15
5
Calculate 13.5 kWh Batteries Needed
13.5 kWh Batteries Needed
= 2
= 2