Solar Calculator
 
Daily Load Calculator
To use this calculator, first select the type of appliance from the drop down list, and then insert the number of this type of appliance in the Qty field. If you know the daily Watt-hour consumption you may enter it directly, otherwise enter the power rating and daily usage in the appropriate fields. The value returned is the total daily energy consumption in Watt-hours.

 
Qty Appliance Usage Rating Daily Energy
h W Wh/day
h W Wh/day
h W Wh/day
h W Wh/day
h W Wh/day
h W Wh/day
Total Wh/day


Solar Array Calculator
To use this calculator, just input the daily energy consumption and select the seasons the system will be used in. The value returned is the minimum peak wattage required.

Please note: The results of this calculator are approximate and apply only to the United States.

 
Energy Consumption
Wh/day

Select Seasons

Summer
Autumn
Winter
Spring

Minimum Array Size
Wp


Battery Capacity Calculator
To use this calculator, just input the daily energy consumption and select the system voltage and number of days autonomy required. The value returned is the minimum battery capacity expressed in Ampere-hours at the system voltage.

Please note: The results of this calculator are approximate and are based on a maximum depth of discharge of 80%.

 
Energy Consumption
Wh/day

System Voltage
V

Autonomy
Days

Minimum Battery Capacity
Ah


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