Calculate Solar Panel Size Your Home

Our solar calculators estimate the solar cost and size of a solar project.

Calculate solar panel size your home.

Choose the inverter size. Figure out the array string size. Total number of solar panels to calculate the size of your solar photovoltaic system take your daily kwh energy requirement and divide by your peak sun hours to get the kw output you need. Describe your shade coverage.

A solar installer would be able to provide you with a more accurate estimate. 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. 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. Determine the number of panels you ll need.

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. Sunpower panels are 61 3 inches by 41 2 inches. Then divide the kw output by your panel s efficiency to get the estimated number of solar panels you ll need for your system. Calculate off grid system size.

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. These should only be used as rough estimates and may be incomplete. 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. Our solar savings calculator provides more accurate cost and savings estimates by analyzing your current electricity bills rooftop and solar pricing in your area.

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. 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. Calculate the size of your solar system. Choose your mounting option.

Enter your zip code. 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.