Use the load chart to figure out how much power you want to use. Click on the title links for help.
Appliance Name of the appliance that will be using the power, e.g. Refrigerator
Quantity How many of this appliance will be using power?
Watts How many watts does this appliance require?
Hours per day How many hours per day does this appliance run? (0-24)
Total Watt-Hours will be calculated when you submit the form
Watts per appliance x hours per day = watt-hours per day
Total watt-hours per day is a starting point for determining system size
More About Lights
Here are the equivalents for the popular light bulb wattages:A 40 watt bulb uses 11 watts
A 60 watt bulb uses 15 watts
A 75 watt bulb uses 20 watts
A 100 watt bulb uses 25 watts