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1 Enter your Daily Power Requirement (Watt-hr/day)

Begin by listing every device you'll power in the MAPPS® Load Calculator below – it adds up the Watt-hours for you in real time. For an offline copy, download the Excel worksheet.

MAPPS® Load Calculator

Download Load Calculator (Excel)
Qty Description Amps Volts Watts Hours/Day Wh/Day Remove
Total Daily Power: 0.00 Wh/day
2 Select your Solar Zone

Locate your site on the Solar Irradiance Map (click to view). The values represent average winter insolation; energy availability increases from Zone 1 to Zone 5.

View MAPPS® System Zone Design Tables

3 Select System Load Voltage

Pick a system voltage, then compare the table values for your zone to your required Watt-hours. Select the MAPPS model that meets or exceeds your need.

Ready to Find Your System?