Solar panel selection calculator

Enter the amps your 12V appliances use and how many hours they run each day. Your results update automatically.

Your appliances

Leave anything you do not use blank. For a fridge, enter the hours its compressor actually runs, rather than the time it is switched on.

ApplianceAmps at 12VHours per day
Fridge
Lights
Pump
TV
Fan
CPAP

Your 24-hour power usage

0 Ah per day

Enter amps and running hours to see your results.

Solar panels needed

Compare different panel types using the daily power use you entered.

Theoretical estimate based on each panel’s maximum power current (Imp) and 5 hours of good sun per day. Results are rounded up to whole panels or kits. Weather, shade and charging equipment affect actual performance. Contact us if you need help choosing a complete setup.

Enter an appliance’s amps and hours above to ask us for help.