Calculate Solar Panel Size Your Home

To figure out how to size your solar system take your daily kwh energy requirement and divide it by your peak sun hours to get the kw output.

Calculate solar panel size your home.

The number of solar panels of the size used in the calculation will theoretically meet that energy demand during a sunny day. Figure out the array string size. In the example above you would need 24 solar panels to account for 80 of your average consumption 29 6 kwh daily usage divided by 1 24 kwh per panel. Typical residential solar panel dimensions today are about 65 inches by 39 inches or 5 4 feet by 3 25 feet with some variation among manufacturers.

You calculate how many solar panels you may need by dividing the maximum hourly solar energy system output by the wattage output of one single panel. Calculate off grid system size. Likewise if you wanted to account for 100 of your daily kwh consumption you would need 30 solar panels 37 kwh daily usage divided by 1 24 kwh per panel. Fill out the load evaluation calculator.

Sunpower panels are 61 3 inches by 41 2 inches. Compare with your consumption and costs and if it s what you are looking for then divide the power capacity by the nominal stc power of the solar panels somewhere between 350 400wp for your case. Describe your shade coverage. Enter your zip code.

3 x 1 3 3 9in this example you would need a 3 9 kw solar pv system to satisfy your home s energy needs. A solar installer would be able to provide you with a more accurate estimate. Calculate the size of your solar system. The los angeles solar panel savings calculator uses our database of electric rates from local utilities to convert your monthly power bill into how much electricity your home uses.

Then divide the kw output by your panel s efficiency to get the estimated number of solar panels you ll need for your system. Choose your mounting option. These should only be used as rough estimates and may be incomplete. Choose the inverter size.

From there the calculator can work out how many solar panels you need to offset your power usage how much a solar system will cost based on prices of local solar. Our solar savings calculator provides more accurate cost and savings estimates by analyzing your current electricity bills rooftop and solar pricing in your area. Our solar calculators estimate the solar cost and size of a solar project.